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14 January 2010

1.2 Million Pounds of Chunky Liquid Gray



At least that's what my little sister said, at 4000 pounds per cubic yard. 

To put yesterday in words would be impossible.  Crew showed up at 0700, and then spent the better part of 3 hours getting things ready... closing off the drainage trenches, shoring things up, moving my precious orange fence around...   It was pretty cold still so I was happy to wait a few hours so we wouldn't be pouring sub 40 degree concrete.  By the time the pumper showed up, and then finally the concrete behind him, it was approaching 11 AM and mid 50 degree temps under a beautiful purple/blue sky... Perfect everything...

Let me say that I don't think you can run an operation this big (and don't get me wrong, I'm not running it, I was a spectator for this one...) and not have problems.  Nothing in the concrete business appears to be small or light.  Everything you can touch is heavy, sharp, wet, or nasty.  The guys that do this work amaze me.  It's one thing to see a 24 year old guy down there, but some of these guys are approaching 50 and do this every day.  They are strong, but ultimately only the smart ones survive it...  You can see it in how the older guys work.  They are more patient...

So yes, a few problems.  At one point a concrete truck got stuck by backing too far into the washout, which we were able to fix by moving some plastic around so the trucks didn't have to back up so far.  And at the end of the day, the pumper had some trouble getting off the site.  He weighs 80,000 pounds.  His front axle is a double steer, and a rear twin tandem.  He gets about 6 mpg in diesel down the road.  I found out the hard way that he is completely covered in oil (actually a release agent) that keeps concrete from binding to him.  He looked clean, but by the time I climbed up on top I had realized my mistake...slippery. 

An impressive sight.  He has a remote control pack of switches, which he uses to control his arm, about 130 feet out there in this case.  I can't remember the actual rating, but he was telling me that pumpers are measured from the ground to the boom as it is standing straight up.  Which he actually had pretty far up in the air at one point while getting his boom uncurled.

The concrete supplier started out slow, but by the end of the pour it was one right after the next. 

My red tubing took a whoopin' for sure.  The concrete falls from the high point in the boom, but mostly that last 10 feet through the rubber hose on the end, and it is flying fast as it comes out the end.  You can be splattered with concrete at 30 feet away...  All that weight hitting the tubing, and then the guys standing on the cables and tubes while they moved it around was abusive to say the least.  Yet, it had to be done, so I nervously watched my pressure gages from about 25 feet (yea, you got that one, about 5 feet too close).  Even today the pressure is still holding on all 4 manifolds.  Although I do have one suspect that is about 2 PSI lower than the rest???  In retrospect we probably should have tied the tubing down with wire instead of cable ties.  The reason we didn't was that the engineers were balking at ANYthing being tied to the cables.  So the compromise was the cable ties, as they wouldn't be strong enough to resist the eventual tensioning of the cables (7 days from now). 

My fear with the tubing is that although it didn't break, I am pretty sure it got moved around significantly.  Could be enough to get it under a wall surface, where it could get poked by a framing nail.  The other problem could be that it got kinked over the top of a cable.  That being said, I never witnessed either while watching the pour. 

For those interested in a radiant system, I would suggest you tie with wire ties and a hand twister.  I experimented with a pull twister but that didn't tie very good, and seemed better at breaking wire and launching them across the garage.  The little 5 dollar twister would work well. 



At one point, we had 13 guys out finishing.  By the end of the night (about 10 PM) they were down to 3.




This is from the back of the house.  I figured they would start the pour on the opposite side of the house and work towards the pumper, but I would be normally wrong.  Turns out you want to set the concrete first that you want to work the finish the most on... Garage and porches.  Yet at the same time, you also want to place the concrete above the floats so they can work on that as well.  So they were really all over the place, and the management of the operation pretty much goes to the guy holding the hose at the other end.

Now, if you think he is just standing there watching the concrete come out, you would be wrong.  The thing is moving around fairly wildly, and it's a minimum 100 pound push to get that hose to go anywhere.  Ultimately it will only go if the boom operator moves it, so they are using hand signals back and forth as they go.  I didn't notice it 'till the end of the day, but this guy was the only one to duct tape his pants where they go into his boots.  Obviously he did this for a reason.  They could dump a 10 yard concrete truck in a few minutes, and this stuff could bury you alive...  or seriously get into your boots;-)










You can see the "waffle" effect of the beams well from up here.  And I will never fall in one of these again.



Should have duct taped my movie camera to the end of this thing and had him twist that around up there in space... 




Here are some finished shots from today...



The concrete "dowels" or rebar that you see sticking up is for the ICF walls.  They 5/8 inch rebar spaced every 18 inches or so, and will tie the floor to the walls, mostly for shear forces, as I doubt there will be much tension.  One advantage for sure of the ICF is it creates a "box" structure on both sides of the slab, which makes everything super strong...

By the way, my wife and I were in complete joy to find the simple act of walking around now on the house without cables, tubes, and ditches in the way.  She is a tad challenged in the department of conceptualizing space, and I think she is now getting a real view of the shape and size of things, and we are likin' it.  The kids were funny running around on the slab, and standing in their future showers pretending to be clean.  I am still nervous to have them out there, though.  Every piece of wood has nails in it, every rebar end as sharp as a razor, and if it's gray it's either concrete or mud, but you sometimes have to step into it to figure that out...   Being city kids, though, this is a good experience for them. 







And finally, the sad part... My road didn't hold up so well.  Fortunately, my tube survived.  Looks like I have to get a dozer back in to clean things up a bit...  That's close to 5 million pounds of stuff up and down this road in 5 hours.  That's abusive.



Enjoy the rest of your week... next monday... ICF begins... the big IGLOO...   Looks like I'll have to have that road fixed before I can get another (even bigger) pumper in for that operation, but certainly a lot less concrete... 

Keep checking back!

11 January 2010

Getting Ready for the Concrete



Well, headed out to the lot this morning after a long nap...  Laid down on my son's bed and then the cat came and "zapped" me...  Anyway, I got to the lot later than I had planned. 

Didn't really have much planned but to stare at all the stuff that would get covered up tomorrow, but in the end, I worked my rear end off out there.

First order was to fix the little valve I broke the other night in the cold.  I had just sheared off the metal pin between the handle and the ball valve.  Then I plugged the drain hole from the other day and filled the standpipe all the way to the top.  Walked around and looked for leaks... Nope... (so I thought).

So then, tried to get as much water and ice off things as I could.  The ice chunks were pretty huge considering they had had lots of time to melt.  I tried to take a picture with my foot in it so you could compare size.  These came out of the plastic sheeting covering the perimeter of things.

It took about an hour, but I was able to finally get all the plastic pulled back from around the edge of the slab.  My thinking was get the thing opened up so it could at least breathe some tonight and get plenty warm before the concrete hits it tomorrow morning.

Researching concrete "cures", it appears that when you freeze concrete, it stops the curing process and greatly weakens the concrete for life.  There are work arounds to this, but in short warm, not cold, not hot.  Ice is also a problem because it is cold and also can create a "void" in the concrete.  I think we will have pretty good weather for this whole operation...40's by the time they pour, warming to almost 60 tomorrow, and then the actual concrete temperature should stay between 50 to 55 degrees for the next week.  It is even supposed to mist and rain starting a few days after the pour... perfect.

So, I am just about to head out, and standing over by the Master Bath, and I hear a hissing sound...  Hmmm... Too cold for rattlesnakes (but one can never dismiss that possibility)...  After searching around, I finally find another hole in a pipe...  It wasn't leaking water, but rather air from the system being under pressure.  I really had to dig around because the air was actually coming out of the roofing mastic they had smeared all over one of the pipes...  Dang... So, with the sun going down in 1 hour, I am off to HD again for another part....  It is just a pinhole leak, but rather fix it the easy way...

While at HD, I also picked up the stuff to run power all the way down to the house from the T pole.  I think I will run two outlets on stakes, and also picked up some stuff to put a dusk to dawn light on a pole out there.  Not sure what the light will do, but I must say it is pretty creepy out there in the pitch black of night.  Hope I don't get zapped while hooking all this up... There isn't really a shut off on the meter, just breakers, and I need to be inside that box to hook it up...  bbbbzzzzzzzttttttt.

Ok, I know you just log on to look at pictures, which so far have been pretty boring...  Here is another boring picture... These are the electrical floor boxes...  Not exactly rocket science to hook these up, eh...  And builders charge you a ton for stuff like this...  dang.



These are in the Rec room by the way, fed through the dining room wall.  Had to get power under what will be the air hockey table...  The other one will be in their little theatre area.

Ok, the concrete guys say they will start pouring at 10 am, and have the concrete in place by 1 pm...  I am sure they will play with it for hours after that... At some point I have to get the wife and kids over there to make our mark somewhere in the concrete...  Have to come up with some cool saying, like "One Small Step for Man..."  has somebody used that one??

I hope tomorrow goes smooth... But even if it doesn't, I will never have to look at all these cables and red tubing ever again.  Nor have to walk across this stuff to retrieve whatever tool I forgot out there in the middle somewhere... 

Wish us luck...

10 January 2010

The Deep Freeze

The last two nights have been really cold for us. I think last night we touched into the teens and the night before into the 20's... We have had some other freezes this year, but not for as deep or long.




So, the electricians came to set the "T Pole", which means temporary pole. They set a wood pole with a meter can and a very basic breaker panel with some outlets on it. This has to be set according to the standards set forth by the local utility company. Unfortunately, the guys were still working on setting the pole when the utility company came by with the actual meter, which is the process of hooking into the big green transformer box on the lot. Since the electricians weren't done, they had to come back, and when they did, didn't like something about the pole?? I wasn't really involved, but the electricians had to go to HD for more parts. Long story short, we now have a T pole set and ready to go, but it will be at least monday before the Utility company comes back to connect it.



The electricians also set the "floor boxes", which are basically grey PVC outlets that sit in the concrete that are fed by "flex" conduit from some wall in that room. I have of course learned to never take anything for granted by now, so I helped them make sure they found the walls correctly. You have to hit the wall in the middle of what will be a 2x4 sill plate. That means your 1 inch pipe has to be inside a 3.5 inch spot. These aren't as big of a deal as the plumbing, however, because they are smaller than plumbing pipes and they just serve as conduit for running wires.



BUT, I was sitting around Friday not doing really anything, but waiting. Going through a mental checklist of "what if" type things for the concrete pour. Just as I was walking away, said goodbye to the electricians, I happened to shake the riser pole on the drain system to see if it still had water in it... And I realized, OF COURSE it does, and so does the entire drain plumbing system, and it is going to dive into the TEENS tonight.... CRAP!! I could lose the entire drain plumbing system... STUPID!!! So, off to the truck, I grab a shovel and dig out the "cleanout", which for some reason they had buried again about 4 feet down. I borrow the electricians portable drill and drill a hole in the end cap and drained the thing...



The lesson here is simple. When things happen that are non-standard, like cold temps, you need to get yourself thinking "outside" the box, or you are going to miss something seemingly obvious.



I hope I don't have any cracks in the plumbing, but Monday the weather is back above feezing for a few days, so I will pressurize the drain lines again and check them before they pour on Tuesday...



What a du mas I am...



Well, the cold doesn't end there. Last night it was very nippy, and we have lots of neighbors still out of town for the holidays. I ended up checking on a few of their homes, and their spigots were not covered. One neighbor had ice from the spigot all the way to the ground, so I am pretty sure they lost a pipe. I wrapped that one up and then turned off their water. Thinking if it thaws I will prevent a major flood inside their house.



For the record, I never even considered installing standard uninsulated sill cocks on my house (as is the "standard" here). I am going to use 12 or 14 inch "freeze proof" sill cocks, that have the actual valve way back inside the house, where it is toasty warm. With an ICF house, the inside of the wall is technically "warmer" by design in winter, but that makes the outside of the wall technically "colder" by design, so you can't rely on the house "leaking" heat into your outdoor pipes to keep them warm enough not to freeze. I am also trying to minimize the amount of "outdoor" plumbing that is hooked to the "inside" of my house. Kind of stupid really to have water flowing through your house to wall spigots that you could just as easily hook up a good old fashioned water "hydrant" outside, just like we had on the farm. We will already have a pressurized sprinkler manifold all around the house... just hook into that thing...



Also, these "tankless" water heaters everybody talks about. Well, for some reason people call them "instant", which isn't true at all (you have to wait for the hot water to come down the pipe). Down here, to save a buck, they install them on exterior walls so they don't have to vent the flue gasses through the roof. But, they are on a "cold" wall. We had some neighbors almost lost theirs from freezing. Again, the freezing is one thing, but when the pipe is broken and then it thaws out the next day...FLOOD...



OK, so why I am on my rant. I originally liked the concept of these "tankless" systems, but they come with problems. First would be what I just stated. Are they more effecient... Probably yes. They don't have standby losses as much so you only heat the water you use rather than the water you "may" use. But what I don't like about them (other than their initial cost) is that they don't work with any kind of "recirculating" system to truly get "instant hot" water anywhere in your house. Look into the Grundfos "Comfort System" and you will see a really nifty pump that allows you to already have hot water charged into your hot water supply lines and ready to go, without having to run 2 gallons of water down the drain waiting to wash your hands or take a shower.... but, you need a tank as a storage medium for this to be efficient.



The absolute best option, I think for creating hot water is a solar system that is augmented as necessary with the following systems in order of (cost) efficiency, not necessarily real efficiency. (example... an electric tank is perfectly efficient, 1 to 1 before standby losses, but that doesn't mean that that watt of resistive electric is less expensive than it's equal amount of heat from a gas source, which may be cheaper, and geothermal can give you upwards of 7 or 8 watts of heat for your 1 watt of input...resulting in a Coefficient of Performance COP of 7.0 or 8.0, as defined...)



1. Desuperheater (from your A/C system when it is running, this is free and helps your A/C out)

2. Ground Source Heat pump

3. Air Source Water heater (if you live in a warm climate)

3A. Non condensing gas or propane tank heater (less loss up the flue)

4. Tankless Gas

5. Tankless Propane

6. Tank Gas

7. Tank Propane

8. Tank Electric



And I don't know about the tankless electrics. Heard both good and bad about them depending on application, incoming water temp, climate, etc.



And whatever you do, do NOT put your hot water heater in an attic, especially a vented (non conditioned) attic... With that kind of thinking you may as well just put the dang thing out in the back yard, and hope for the best... At least when the pipes break it won't flood your house.



As far as solar hot water goes, that is a big subject, but the coolest (hottest??) system out there that I like the most is the "Evacuated Tube" solar hot water. They use a "heat pipe" inside a borosilicate "evacuated" glass tube to superheat a working medium that then condenses at the top of the pipe inside a hot water manifold. They are super efficient even in very cold temps, and can create temps in excess of 400 degrees F... HOT! But again, don't confuse heat or temperature with cost efficiency...they are more expensive. I just happen to like them.



Wow, how did I get on that subject... I am still working in the mud stage... Depressing.



OH, and after saving everybody else’s pipes last night, I went out to the lot at 2 AM in the morning and guess what.... My little temporary spigot was frozen up like a rock. When I put that in, I actually bought a shutoff valve that had a drain screw on it, so I could drain back the pipe if I thought it would get cold, but I couldn't fit that valve into the box, so I dismissed it... Instead I insulated the crap out of the iron pipe... Well, I should have stuck to my guns and made room for that valve... Du mas (as my wife would say)... It's going to cost me 3 dollars now...



got to go......



Update.. OK, trip to HD revealed a new valve was actually $5 and change. Mine probably would have survived until I broke off the handle ;-)

07 January 2010

Pressurizing the manifolds...





Pressurized Manifolds in the Cold

Woke up this morning with an idea....  Yesterday, we ended up kinking a tube, the very last one, just as we were finishing up...  It kinked right where the tube went into these bend supports... Since I wanted to protect the tubing anyway from random hazards, why not use some "smurf" flex pipe, which fits right into the bend support, and would help support the tubing so it couldn't be kinked...  So off to HD before anything this morning... 

By the time we got to the lot, the cold front was really coming through... Nasty wind and rain.  Things at the lot were just nasty.  Mud, water on all the plastic, everything was cold and blowing around.  That first picture up there was from the ice the other day, I just threw it in for effect...

I have to tell you about the coolest tool I bought...  It's a plastic pipe cutter that cuts pvc, pex, etc up to about 1.5 inches in diameter.  You open a knife and the thing then rachets back down as you cut, and the knife goes right through just about anything... If the mob ever finds out about these things, they will be taking fingers off with ease...

Anyway, at each manifold, I cut the tubing to the same lenght, then installed the smurf pipe, then copper crimp connectors, and then finally the manifold on top of that.  I used a "pocket crimp" tool to crimp everything together.  I am such a tightwad I didn't want to buy the full blown tool, and I thought the "pocket crimp" thing would work out well.  It's kind of shaped like a clamp with holes for 3/8, 1/2, and 3/4 inch size crimps and you basically just squeeze the crap out of it with a pair of vice grips.  So, 38 crimps later my hands are sore like all getout.... 

This really organizes things, though, so the pipe looks a lot better.  Then we hooked into the neighbors power and ran 300 feet of extension cord over to my little baby air compressor, and pressurized things to 80 PSI...  We did notice that the tubing bacame much stiffer and actually popped up in a couple places (it needs to remain below the level of the finished concrete, but not too low).  So, a few repairs to that, but the tubing is now holding it's 80 PSI nicely.  I think before the pour I will back that down to 40 or so, but for 24 hours I would like to see it hold it's pressure just to be sure...  Eventually, the operating pressure can be quite low, just whatever it takes to get the water around the circuits...  The tubing really did stiffin up (if that was any more possible) with the pressure inside.  Also, I think the volume is something like 90 gallons, so my little compressor got a workout on a 300 foot cord...

And finally, the radiant floor is ready for the pour...  A task MUCH larger than I predicted. 

So, the only thing left to put into the slab is the electrical floor boxes.  That is scheduled for tomorrow.  There will be ice on top of the slab, but at least everything is marked out. 

My wife spent the day today helping me with things, mainly, she put 500 plastic "chairs" under the tubing in spots where we thought it would get mashed down too much.  This should greatly help keeping it in the correct position when they pour. 

As I write this, the wind has died down, but there is now ice forming on the playhouse in the back yard.  It's sunny out, just cold and windy... 

OK, have to verifiy with the electrician for tomorrow...

Later...




06 January 2010

Tubing is finally laid down

Well, the tubing is finally all down and in it's final resting place.  Hopefully when they pour the concrete those guys will keep that in mind.  It would be easy to knock something loose.  We have been walking all over it, and so far nothing has broken, so I think it will be ok. 

Too tired to go get the camera for any pictures.  We worked another 12 hour day.  Dawn to way after dusk for me.  We had the tubing down by about 2 PM, and then we decided to place the electrical floor boxes while we were both there to discuss it.  We actually aren't doing those, the electrician is, but we wanted to mark them out exactly where we would like them, as on the plans it was pretty much a guess.  I put marking paint in those locations, and tomorrow I will put landscaping flags there to make them more visible.  The slab is getting pretty full of "things" and it's easy to get lost out there, as I am sure a couple tools that have gone missing are also probably in their "final resting place".... Ha!

I stayed on the lot in the dark tonight and finished up the electrical feeds...  Future stuff like pool pumps, septic system, landscape lights, sprinkler system solenoid lines, etc.  I also ran another entrance for the water line, as I didn't like the one that the plumber put in (not where I would have put it, and not where I pointed the day we discussed it... hmmmm).  His spot comes in right under the breaker panels in the garage...  Mine would come into a corner and then feed straight up into a spot where I can put a whole house filter.

Then headed over to my buddies house to help him with getting his water spigots covered for our upcoming "deep freeze"...  Stop it you Yanks... You can keep that cold air up there, because we don't want it.  I think back to about mid July and ponder if we could just average the two extreme temperatures.  I think San Diego does that...

Tomorrow I plan on hooking all the tubing into copper manifolds.  These are just cheapo manifolds that will only be used for pressure testing.  Tonight after I cleaned out the truck again, I organized all the tools I will need for that task, and even loaded up my air compressor and a "bubble" tank for use tomorrow. 

I will try to take pictures, but they are talking ice and sleet.  I may have to rent a generator to run the compressor.  That will require a run into town, which I hate... 

OK, that's it for tonight...

05 January 2010

11 down, 4 to go




Don't ask me why, but for some strange reason we didn't take pictures of the 1 inch of ice that had frozen in the poly overnight.  I guess the shivering hands had something to do with not wanting to take off your gloves and reach into your pocket for the camera...

Anyway, yesterday went pretty smooth, we were able to do 4 more circuits and ready the next manifold, which was exactly the same progress as today...  So, 4 more circuits to go, and we will have the tubing down. 

In the middle of the day today, we ran into some trouble, however.  The concrete guys had come out to tidy things up and make sure everything was ready for the inspector, also scheduled for today.  Within minutes of the inspector showing up....problems.  Turns out that they had misread the foundation plan and had some of the cables at the top of the foundation rather than the bottom.  Well, these "strands" as they have been coined, just so happen to be ones we had tied hundreds of zip ties with tubing...  So, about a 1.5 hour fix on that, as everything had to be released and restrung.  Two of these cables had me actually have to restring an entire manifold, as well as pull the entire supply and return lines for the "island heat" to the kitchen.  In the end, this ended up not being as bad as we originally had thought.  I certainly would rather have to deal with it now, and certainly the cables being in the wrong place would put the entire structure into question... 

In exchange for my trouble, the slab guys helped me tie up some tubing in places where there was nothing to tie to.  Basically, they made rebar stakes and then tied the tubing to that with wire.  An acceptable solution for everyone.  I certainly appreciated their help.  They have been super.

The rest of this week is going to be WAY too cold to pour concrete.  So for now we have scheduled the "pour" for next tuesday.  They are predicting somewhere between 320 and 350 cubic yards of concrete.  I guess the way this works is that they all show up at 0700, make final preparations to the slab, and then they have the concrete start at 0930.  They are predicting to be on site well into the night.  With the colder weather, the concrete doesn't want to set very fast, so it will take a long time to work it. 

I think I need to let the neighbors know about this.  There is no way around it, but there will certainly be some noise well into the night.  I think they are renting some light stands in advance... 

By then I need to have all of the tubing in place, sealed into the copper manifolds with pressure gages, and pressurized (I am leaning towards 80 PSI). 

I also need to finish all the future electrical stubs that I have planned.  I was able to finish two large ones tonight as the sun went down.  They aren't that bad.

My wife continues to be awesome.  This is certainly not an easy task for her, and she also continues to have to keep everybody in lunches, homework, etc.  She worked all day out there and it was cold.  She is handling the tubing ahead of me coming off of the rolls, and it has a mind of it's own as it is freed from the coil at these temperatures. 

OK, you Yanks can stop laughing at us now.  I know it is much colder up there where you are, and I am sorry.  But trust me when I say it is cold for us...

OH, also hired an electrical contractor finally.  Long story, but in the end I got a guy that is experienced with lighting control and lots of low voltage stuff.  Even though I am doing the low voltage myself, it will be handy to have him step in and help if I need it.  He hasn't done a Centralite system, but lots of other systems.  I was looking for a guy too that would be able to keep all the wiring mess organized, and he assures me that he can...   He is scheduled to come out Friday and place the 8 floor boxes and island power feeds.  He will also bring a temporary power pole so that we can finally get power to the lot.  In the meantime, I will probably have to rent a generator to run the compressor to pressurize everything. 

Also talked to the ICF contractor and they are placing the order for the next step... The ICF walls.  I will be much more "hands off" on this that I have so far.  It is much more fun to be a spectator.  I need to come up with a list of things that need to penetrate the ICF so we can conduit all that in advance (hose bibs, electrical, geothermal lines, desuperheater lines, etc).  Another measuring job... 

OK, off to sleep...


28 December 2009

Tubing and the Float

All,

I am wiped out...  3 hours sleep last night preparing tubing layout (measurements of every nook and crany). 

Hit the lot at 0800 this morning just a couple degrees above freezing.  Frost on everything.  Black "poly" slicker than snot. 

Long day,  we were able to get 3 circuits done and then an extra manifold set wired up for our next adventure. 

Float guys showed up and pretty much got the slab ready for pour.  They stayed until 2000 and worked in the dark to finish.   I held a flashlight and froze to death while they worked their rears off in short sleve shirts.  They were actually cold when they got done, but I felt sure that holding the flashlight so they could read the measuring tapes, levels, etc. and see where they were pounding was in my best interest and theirs. 

I am no ways near ready to pour concrete.  Still need to hire an electrician (long story), who has to set the floor outlets and island power.  Also don't have a temporary electric pole, so they have been working off generators.

We have probably 3 full days left of tubing work, plus some future electrical feeds I want to put in place...
  1. 1.5 inch conduit in 2 places for future pool equipment
  2. 1.5 inch conduit for future workshop
  3. 1.5 inch conduti for aerobic septic system
  4. landscape light feeds to front and rear
  5. sprinkler timer electrical feeds to front, rear, and rainwater collection system pump.
Those will take me a 1/4 day if everybody leaves me alone.

I put some NO TRESPASSING signs in front.  Too much going on right now for the gawkers to step on, and the ICF is coming next.  I really don't want people even close to that stuff before it is poured.

It is interesting to see what shows up on the camera system we have in place.  Friends, and you know who you are, you are welcome. 

Ok, here are some pictures.  I'm too tired to explain anything.  You will have to figure it out on your own.  My fingers are bloody from the 600 zip ties I tied...

Oh, except for one explanation... Dad, the first picture is how they floated the garage.  Form guys couldn't figure out a good way to deal with the slope out the side of the garage for those 3 doors and then also with the slope out the back of the shop... So after some thought, we decided it would work good to make the shop actually level with no slope, but for that single garage door now has a ramp that drops 2 inches over 3 feet.  The picture shows the giant wedge they made for this purpose.   The concrete guys will actually blend all these slopes together so there isn't any sudden bumps anywhere.   These guys were amazing...

OH, and anybody that is wondering why I have green T posts in my house (8 of them acutally) they will be cut out later and the manifolds mounted to framing.


Good night...






27 December 2009

Plumbing and "Makeup"

"Makeup"... what?? 

I have watched a lot of house from start to finish, but I guess I wasn't in the conversations.  I have learned a lot of new lingo in regards to concrete.  I should share some...

Form Setters -  A group of short, strong guys that swing 20 pound sledge hammers with ease.
Poly - Poly (something) that comes in several thicknesses measured in "mils" 
Makeup - Another group of short, strong guys that use flat shovels to dig trenches and "makeup" your slab.
Float - Put in place by the Form Setters.  Consists of more forms above the level of porches, garages, etc.

Well, today started out with a lot of questions   I knew the makeup guys were coming, but didn't know when.  I rolled in at 0805 and they all jumped out of their trucks.  Were they waiting for me, or did I just happen to be right behind them??   I say that because they obviously didn't need me for anything.  Without a whole lot of communication (other than some grumbling spanish comments about the mud), they just started digging.  30 minutes later they brought out the trencher...

The slab sits on 28 inch tall, 12 inch wide beams.  These beams are dug into the select fill pad, and then the whole mess is reinforced with cables and steel.  In a nutshell, the makeup guys are there to make this happen. 

Here is a picture of them getting started.



BEAMS...


A lot of this is dug by the trencher... Let me try to attach a video for the machine freaks...  It has a 12 inch wide chain a does a really good job of pulverizing what comes out of the trench into a fairly fine consistency.  This dirt subsequently is moved around and used to form the "pads" that make up the little islands around the beams.  On top of the pad will be 5 inches thick concrete (a little thicker than normal because of my radiant tubing taking up some space, I think the engineers were covering their rears a little here).

Well, this blog thing wouldn't let me download a video of the trencher... Sorry, how about a picture?




It has tracks, no wheels.  Makeup guys said they had not used it in about a month because everything had been so wet... 

So, at the end of the day, picture 120 foot slab x 80 foot, give or take.  A beam in each direction every 10 feet, plus a continuous beam under the perimeter of the ICF (living space).  By the time these guys left, they had this whole thing dug.  No breaks, no whining.  Smiles and jokes all day. 

Tomorrow they come back to finish some pads, and then poly, cables, and steel. 

Cool thing was that I had a much better idea of how the house lays out...  I could see where the walls were in relationship to the porch front and back, etc.  Looks great.  We are VERY happy with all our layout choices...

Bad thing was that chain trenchers and PVC pipe do not play well together.  I was briefed to anticipate this, because it just happens, but the trencher "nicked" 4 pipes.  The good news was that the plumber had just showed up to take a look at his penetrations. 

There is a long standard of fighting between plumber and concrete men as a result of the pipe issue.  But in our case, a deal was to be made...  Plumber would fix pipes without a penalty to concrete guys if concrete guys would clean up the mess about to be made by the plumber. 

So, a few hours later, 1 trip to HD for some couplers, and lots of measuring, and viola.... pipes are now where they should be. 

Everyone left in the dark, except for me, who stayed behind to pick up trash so the racoons didn't have a party out there tonight...



One more thing... At some point I was telling of the problems with rolling the radiant PEX into their respective lengths... Well, last week I finally broke down and went out and bought a sheet of plywood, had the guys cut it into two 4x4's, and turned it into a spool.  Did the ladder trick with the shovel again and much better succes....

Here is the spool...




1000 foot doesn't look like much...

Here is 4000 feet safely secure on my back patio...




Ok, it's late...

Goodnight!






26 December 2009

Christmas Eve

Ok,

I was bummed out in the last post, but we really don't have any problems.  Kids are healthy, employed, wife is normally pretty happy with me, etc.

So, I should share our little Christmas Eve thing...  Homemade Pizzas...

I have traveled the world many times over, and my one thing I like to do is try pizzas everywhere I go to see how they differ.  By far, the best pizza I ever had was in Paris on the Champs des Elysses one Christmas Eve.  Jambon and champignon with some light sauce and fresh mozzarella...  Yum (oh, and of course an 8 dollar Coke with 1 cube of ice).  Only thing better would have been to eat that pizza at home.  I probably topped this off with a crepe "complete".  Ouf, fromage, salt, pepper, yummy.  The French know how to eat almost as well as the Italians... (although the best food in the world is actually El Salvador). 
So, here it is...

Pizza dough...

3 cups unbleached flour
1 tbsp sugar
1 tsp salt
1 pkg yeast
1/4 cup EXTRA VIRGIN OLIVE OIL (don't skimp on this)
1 cup warm water

Let that rise for a couple hours, and then roll it out as flat as you can...

450 degree oven (or hotter if you can), pizza stone, PARCHMENT PAPER (works better than cornmeal, which burns and smokes at temps greater than 450F)

We all get to pick our toppings. 
You should not put things like BBQ sauce or pineapple on your pizza... 

Kids stick with simple stuff.  Cheese and bacon...

Here is our favorite...

Fresh ball mozarella
Comte cheese (from Costco, it's a hard cheese you can grate)
Very Very light sauce, or just some chopped tomatoes
Salt
extra virgin olive oil (got some in Artentina that is awesome)
shaved Boarshead Prosciutto ham (it's expensive...deal with it)

bake for 6 minutes and then watch it till crust starts to change color.

top it with COLD fresh chopped Arugula (known as Rocket to some)

This pizza will change your life....

Remind  me when I download those photos and I will attach a pic of it later...

Merry Christmas!

PS, also spent 3 hours digging drain trenches trying to get all the water out of the plumbing trenches.  Windy, rainy, cold... Fun.  But, I have talked the plumber and concrete guys into both showing up on the 26th (yes, a Saturday).  So I want to have this thing as dry as I can...

Plumbing



Beginning of Underground Plumbing

Just a simple old outhouse would have been a lot simpler.  1 hole, 1 door with designer door cutout, etc.  Somehow we have all been talked into a far more complex system... 

This is where the plumbers began.  It is called the cleanout... I was concerned about this because 120 feet across the house causes problems for the "drop" in plumbing.  They drop the plumbing about 1/4 inch for every 10 feet, which keeps "things" flowing, I guess.   But, in my puny brain I was thinking 1/4 inch per foot, which would equate to several feet of drop...  Anyway, as usual, I was thinking wrong.

From this location, the pipe will make a turn due West and head over to an aerobic septic system, which will magically transform "things" back into water, and then make a trip due East about 450 feet to the septic field (watch out you East coasters). 

Well, this was the start of my first big problem other than weather.  Plumbers got off to a bad start, their digger broke, had to rent a new one, showed up later, wanted to finish, etc.  Anyway, we had about 2/3 of the plumbing "penetrations" miss their intended location.  We didn't know this of course until the next day when I went over to do a random audit of locations... I was agitated, stressed, and tired.

I didn't intend on having to do this, but I actually then stayed up till 6 am on the 23rd calculating out every single pipe penetration point as it was measured from the edge of the form boards.  In the plumbers defense, this house is very confusing.  There are 5 1/2 inch stone ledges, but sometimes there is another 6 inch of taper thrown in on top of that, and sometimes in several directions.  In addition, the exterior walls are 11 inches thick, which is not a normal dimension for the trades.  Interior walls range from 3 1/2 inches thick to 8 inches thick....and, the dimensions aren't called out very well on the plan, which is sometimes off as much as an inch due to where they "snapped" the dimension endings. 

The good news for the day, however, was that he did install a 6 inch PVC conduit for pulling the geothermal lines into the garage later in construction.  I had him go 4 feet deep on those based on some HVAC expertise.  Also put two 45 degree bends with a wide sweep rather than one 90 degree sweep to make pulling those lines easier.

Also noticed that there was several thousand square feet of roof that would dump water directly into my courtyard...  So, to remedy that, the plumber put 4 inch drain line penetrations through the slab that extend out beyond the courtyard.  I will hook those up later to the rainwater collection system.

Ok, another picture...



In this picture, the big pipe is a toilet drain, the one to the left is it's vent.  The one to the right is a shower drain.  The sink will later tie into the vent in a "wet wall" fashion, which as you can see has all the water from sink and shower chasing the toilet water.  The only trap needed here is for the shower, as sink and toilet have traps themselves.  This is a fairly typical bath setup.  In the background you can see the drain lines headed for the cleanout.  The farthest point starts out with 3 inch drainline, picks up the powder bath, and then turns into a 4 inch line as it picks up the rest of the house. 



As the sun goes down, you can see the trench being dug for the 6 inch geothermal conduit.  This stuff makes all the other plumbing out there look small, but I don't have a picture of it installed. 

There was rain in the forecast, and sure enough, by midnight, the place had turned back into a mudhole... 

We would find out the next day that most of this plumbing needed to be reworked.


17 December 2009

The smell of sawdust



Taking Shape

It didn't take long for this to happen...  The form setters showed up this morning and demonstrated an advanced lesson in Geometry. 

They actually staked out points beyond the house, staked and squared, and then ran string line across all 4 corners. Then, working inwards, they set the exact position of all the forms.  You can see the shape of the house from here.  There are a lot of cuts in and out where the house changes direction.  Also, the height of the forms changes all around the house, because where there is a porch, garage door,  entry door, courtyard, etc.  All these things require a "drop" in elevation and then slope. 

Only one minor emergency.  On the plans was a dimension line that looked like it terminated in a particular place but did not.  It all made sense in the end, but a couple calls to the designer and also the CAD guy.  Nice to have them help, and made me feel a lot better when the crew was able to measure full circle around the house and get back to the same spot using some math. 

Here is a shot from the other direction...



I was hopefull we could have the plumber on site tomorrow, who will place all the drain tubing in trenches and locate all the drains, vents, and geothermal conduit.  Even though the weather is now very good, unfortunately he is behind on other jobs and can't get here till Monday.  I think that will eventually cause us not to pour concrete before Christmas. 

Otherwise, it was refreshing to see the house grow upwards about a foot, and I have to say I was pretty excited to smell fresh cut sawdust...  mmmmm.

OH, here is a shot of the "Tube" we took the other day.  Didn't get that downloaded till now...  Have a look...



I am hopefull that someday I can show you some pics with some blue sky...

That's it for now..

15 December 2009

Mud and a 262 foot Hula Hoop



Rain for the last few days, and nothing has happened...

We didn't have hardly a drop of rain this summer, and it was smokin' hot.  Dried everything out and was really hard on everything alive..

Fast forward to December.  We keep getting cold fronts sent from the North (can't blame you Yankees for that, this stuff comes from Canada) and that meets our rather warm, humid Gulf air, which produces rain.  We have not gotten hammered from total rainfall, just drizzly wet often enough that we can't surface dry things out. 

Was supposed to have the forms set for the concrete this morning.  But I called them off for another day, and glad I did because it was pretty slimy on top.  I don't think that crew was too excited to be swinging 20 pound sledge hammers in the mud.  So, tomorrow we try again...  They say they can have the job done in a matter of a couple of hours...  Would take me weeks.

In the meantime, we made another run to town for other things.  Looks like iphones are in our future.  Since my puny brain can only store just a fraction of what it should, these should help...  Anybody have an iphone case they really like??  Needs to have a screen protector build in and still able to dock the phone easily...

Oh, got home and decided to take a stab at my next project for the house.  I will be installing a "Hydronic Radiant Heating" system myself in this abode...  What that means is warm water circulates through PEX (crosslinked poly pipe) embedded in the concrete slab, thus warming the concrete and keeping your pigs warm. 

I bought this tubing from an online retailer.  Couldn't support the local economy on this one, because the tubing needed to have an "oxygen barrier" which normal PEX doesn't have.  It turns out, that when you have hot water in a closed pipe, it sucks oxygen right through the walls of the pipe, which builds up in the water and causes things to corrode, as well as eventually forming pockets of oxygen gas which mess up the flow of water.  The pipe with the oxygen barrier keeps this from happening.  Only you Yanks seem to really know about this, and I thank you for your expertise in figuring all this out. 

Ok, back to my point... I bought the pipe in 1000' lengths, but it is installed in lengths in the neighborhood of 250' per circuit.  So, to save time later, I had the bright idea of cutting this stuff to length and rolling it up in giant rolls that would be more manageable for installation...  Good intent.  So, tonight, I get a roll, open the box, and I am staring at a 1000 foot red slinky.  Hmmm. 

OK, two ladders, an old wire spool, put the red slinky over the wire spool, put a shovel handle through the wire spool, suspend the apparatus between the two ladders, attach C clamps to the shovel so it can't move, and cut the straps holding the red slinky together.  HOLY CRAP!!...  Red slinky everywhere.  My neighbors are driving by... slowly, with looks of wonder in their eyes.  They probably think it is some Christmas decoration... 

Long story short, after much aggrevation, I get my first 262 foot piece rolled up into a nice neat 6 foot diameter loop, with cable ties holding it together about every 50 feet.  Wifey is completely pissed off at me, because she just isn't capable of reading my mind.  Daughter too, who tried to help tame the 262 foot Hula Hoop...   Not fun.

OK, for you techno savy pipe nerds out there... I have a question.  I have observed that granite countertops are cold to the touch in winter.  So, since I already have warm water circulating and pumps why not run a circuit to two places... 1.  The eating island, where people will have their arms resting whilst eating and doing homework, and 2.  Pissed off wifes makeup counter in the master bath...        Why??? Because I can...

I can easily run pex tubing over to each location and supply hot water, but how do I circulate it under the countertops...  The island countertop presents a special challenge, because the wood base under the granite also adds some support to the part cantilevered part that hangs over the edge about 16 inches.  If I cut into this too much, I run the risk of a structural failure...

Here is my idea...use some plumbing adapters to convert the pex to a 1/4 inch flare copper coupler, then use a router to make a 1/4 inch channel that snakes from one side of the island to the other.  Snake the copper tubing into place and secure into the tracks with silicone.  Then, the granite gets installed on top of all this and subsequently is warmed whenever the floor heat is on (all winter long, in my case) to a temperature of about 80 degrees. 

Since I am the "hypercomplicator" according to my first wife (actually, the wife I have now that is pissed off at me...did I mention that?), I am not quite satisfied with this design.  I feel the head loss from the copper tubing will be too high and I will end up with an island that is cold on one side and warm on the other... So, why not split the tubing and come across the island from either direction, thus reducing the head loss and increasing flow, and having a more uniform temperature gradient across the island...

I take your comments on this... Anybody with a better idea wins...  Just don't try to sell me on the electric resistive mats under the countertops.  I know this can be done but it costs too much to operate regardless of it's simplicity...  I can make hot water with my GSHP at a COP (coeffecient of performance) in the range of 4.0 and higher, 4 watts energy for the cost of 1.

Sorry, should have taken a picture of the red slinky...  I promise to construct a better design to do the rest of that project... 

I wonder if the iphone has an app for that?

10 December 2009

Dirto Finito... For now...



This is what 120 truckloads of dirt looks like...

Let me first say that we have been really getting hammered with moisture this fall.  We could have been doing this little project back in August when we were all dry, but my own stupidity for getting the budget together coupled with the bank being pretty slow to approve things put us right in the wettest time we have seen in more than a year... 

I'm not going to say bad things about the bank...  Personally, I wouldn't lend money to myself (pretty much a bumbling idiot) at the rates they are getting for money.  But trust me when I say they left no stone unturned in terms of checking on things before we were approved.  Then, after we were approved, they fiddled around some more.  We are glad that that part is behind us, but there sure is a lot of paperwork dealing with draws and such...  I would say so far contracts and draws (and writing checks) will probably be the worst part of this whole process. 

OK, back to the dirt...  Rained this Monday all day.  Mist, fog, and crap all day.  Tuesday morning the pad was disgusting.  This fill dirt turns into really nasty stuff when it gets wet.  Slippery to walk on, and then you can't get it off of you.  Just nasty...  By Wednesday, though, things were looking decent, so a judgement call to attempt a finish on Thursday. 

This morning, bright and early, the guys showed up and started pushing things around again.  When the first loaded truck came into the driveway, it was not good, he sunk in, slipped around... but being a brave soul, kept coming in and made it to the pad.  So, we dumped a couple of more truckloads of fill in the driveway and they worked the drive back out, and surprisingly, by the end of the day, the driveway was pretty good. 

The pad, on the other hand, was excellent.  Tony, the dozer driver, did an amazing job of working things around.  When they put these things in, they normally go about 6 to 8 inches per "lift", and then work that around and pack it down.  Tony, on the other hand, pushes dirt out from the dump site in tiny little increments, and blades back and forth on it breaking everything up and packing it down.  This packs things much better and they have great control over what they are doing.  In addition, the dump trucks are asked to roll back and forth on the whole thing while they are loaded.  Here is a pic of what that looks like after they "roll" it...




As you can see..  The trucks are not sinking in much at all, and this pad is as hard as concrete.  Each mound of dirt you see is 1 truckload, which is about 12 cubic yards.  This dirt is compacted to about 2/3 of that volume.

By the end of the day, 120 loads of dirt total, 1000's of passes with the dozer, and they had a lazer flat pad.  They check everything with a lazer level and I am amazed they are not more than 1/2 inch off anywhere. 

Time also to finally "set" the culvert...  This they claim was easy, but it actually took a while.  First, they dug a trench out of the temporary driveway, then shot some grade lines, and then worked things around.  A load of "stabilized sand" comes in, and the tube actually sits in this sand.  Then, more stabilized sand, topped with clay fill and then finally topped with 4 loads of rock. 



This picture is taken as they are just digging things out.  As you can tell, things are a complete mess. 





This is the new driveway... I had them crown it up quite a bit to keep it from holding water.  I really need this to dry out and firm up a lot, as the next big task is to get the concrete over this thing.  The orange dirt you see is actually a little stabilized sand left over that didn't find it's way over the tube. 


BTW, stabilized sand (near as I can tell) is non-uniform in size, so it packs better, and it is mixed with a couple of bags of cement.  So it actually sets up hard as concrete.  Surrounding the tube, which in turn protects the tube from heavy objects up top... Tomorrow I plan on driving some 2x4 stakes in there to keep people from driving over the end of the tube. 

What appeared to be a pretty long tube somehow disappeared down in there.

OH, the engineers showed up way after dark and did some compaction "studies" to make sure all is well... Minimum compaction is 95%, and ours tested at 104%. 

We are GO for forms...  Scheduled for Tuesday, but supposed to rain for the next 2 days... For now, I am SUPER elated to have the pad in place.