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Concrete is composed of cement, aggregate (including crushed rock and sand) and water. In homes, it's frequently seen in the foundation, driveway, sidewalk, patio, and stone walls. Note that bricks use mortar in the joints, not concrete.

7
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Ask for the “Batch Ticket” from the concrete truck driver when he arrives at the site before he unloads. The ticket will show the “order” that was called in and required… 3000, 4000, etc. … If it exceeds this time limit, the concrete looses its strength… for several reasons and should not be used. The batch ticket will show amount of different types of materials used in the mix design. …
answered Aug 7 '21 by Lee Sam
0
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We allow control joint cutting in concrete slabs in lieu of installation of plastic or metal control joint material. If cutting is used, we require a cut 2/3 the depth of the slab. … Temperature control can be for expansion or contraction and shrinkage control occurs shortly after the placement of the concrete. …
answered Dec 1 '21 by Lee Sam
1
vote
I doubt if you’ll ever find a table that compares wood joists (2x sizes) with steel angles based on distance (span). Wood framing tables are measured in pounds (ponds per foot, total pounds, etc.) and …
answered Nov 28 '21 by Lee Sam
0
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You have a bigger problem than making sure your foundation is strong enough. You should have used heat resistant mortar or “refractory mortar” often used with fire brick or flue liners. When you heat …
answered Aug 10 '21 by Lee Sam
3
votes
No, it’s not acceptable to use random sized rocks in concrete mix. Concrete is not a mix of random materials. … This will give you a solid base and reduce the quantity of concrete required. Btw, if you’re using rebar, those rocks could jeopardize required bonding on the rebar too. …
answered Aug 26 '21 by Lee Sam
1
vote
Do you have termites in your area that could hide in the space between the pvc and concrete? …
answered Aug 3 '21 by Lee Sam
14
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I agree with Ecnerwal, yes you can do that. I also agree to extend the rebar past the pour (drill holes in the form boards and extend the rebar out the holes). Code (and CSI) require 30 bar diameters. …
answered Nov 28 '21 by Lee Sam
3
votes
Do not let them pour concrete around (or against) non-treated wood, especially wood near the ground. … The Code requires wood in contact with concrete, masonry, or within 6” of ground shall be protected with pressure treated material in accordance with AWPA C22. …
answered Jul 21 '21 by Lee Sam
2
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A large part of concrete is made from sand. That sand contains silica. Cutting it and grinding it releases those particles in the air which you can breathe without proper protection. …
answered Jul 30 '21 by Lee Sam
1
vote
Concrete slabs perform best when it has a uniform thickness, installed on uniform compacted soil, square (or near square) in shape (not “L” shaped), and has temperature reinforcing steel if the slab will …
answered Aug 14 '21 by Lee Sam
1
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Depends on the load (weight and height above sill) acting parallel to the wall and sill plate. We’ve learned that a load on the wall will just unzip it from the sill plate as the load gets transferred …
answered Oct 16 '21 by Lee Sam
2
votes
Solid wood flooring is not recommended to be glued to concrete subfloors or installed directly on concrete. … ., 2) moisture can seep in between the wood and concrete subfloor, 3) Wood expands greatest in the long direction (with the grain) The organization that controls solid wood flooring is MFMA. …
answered Sep 20 '21 by Lee Sam
2
votes
I’d install 2x4’s horizontally at about 24” on center to the exterior side of the posts. (The bottom horizontal 2x4 should be pressure treated.) Then I’d install a cheap wall sheathing (if required fo …
answered Aug 22 '21 by Lee Sam
4
votes
See ICC R310.1.4) In order to replace the concrete wall, you have several issues: 1) structural replacement, 2) disturbing existing soil conditions, 3) point loads from new end posts at windows, Providing … a structural wood wall where a structural concrete wall was installed will take a few calculations, which will require a structural engineer or architect to become involved. …
answered Jul 30 '21 by Lee Sam
0
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The Code requires an edge distance based on the size of the bolt: 1/4” = 1 1/2” 1/2” = 2 1/2” 5/8” = 3” This is based on standard grade concrete, (i.e.: 2500, 3000, etc.) … If you’d use a “high-strength” concrete it can be reduced. …
answered Jul 22 '21 by Lee Sam