Feb 13, 2009 · You can't beat a good compacted base to the proper elevation to put concrete on. Some people are sloppy and use sand as a cheap and easy leveler, but it can draw the moisture out of the slab preventing proper curing of the concrete. Filter fabric does nothing but add to …

Oct 11, 2011 · In most cases a poured concrete base reduces the built-in flexibility and drainage present in a properly constructed Allan Block retaining wall. A well graded, compatible aggregate base, installed following Allan Block specifications, provides the best foundation. Generally, walls under four feet high need a base 4 inches thick by 24 inches wide.

Jan 1, 2011 · I've got a footing to pour in a basement that will be deepened afterwards. This is a older 1900's house, with a 1-2" concrete floor. Underneath the concrete is 12-14" of clean sand, and then another concrete floor of 1-2". Best I can figure is they raised the floor at some point to minimize flooding.

Jun 6, 2010 · I see a lot of decks in this area (MT) being built using precast concrete post bases. They just set these bases on ground level and the 4x4 post sits inside a pocket (with no anchors) in the top of the post base. The bottom of the post base is about 12" x 12". They even use these for the posts that support beams.

Apr 10, 2015 · I'm installing 4x4 posts into an already existing concrete foundation. The surface of the concrete is studded with gravel, giving it an uneven (but overall level) surface. (see the concrete under the piece of wood in attached picture) I'm thinking of using Simpson Strong Tie's E …

Apr 24, 2022 · Crushed concrete and concrete rubble are pretty different animals. I have a bunch of concrete shaving which I assume don't have metal. They poured bridge deck and then shaved the concrete to get to get it right. About 50 truck loads generated from one km long bridge. Good point about govt wanting standardized material.

Jun 15, 2011 · 3) If using a more regular wood product, and here would consider Windsor One a good option, I would tenon & epoxy the joints, then wash a coat of epoxy all across the underside (let that dry) finally slip a piece of felt between the concrete plinth and my new base, then caulk the perimeter as tightly as possible. That would add quite a few more ...

Jan 30, 2022 · The E-Z Base is a retrofit post base that allows easy installation of 4x4 wood posts on existing concrete and is part of a Simpson Strong-Tie® line of products designed to help reinforce fence posts.

Oct 7, 2010 · If you are not heating the structure then you can leave it out, the choice is yours. Since you are in new york,your weather is simillar to ours in cleveland, use a 4000-4500 p.s.i concrete, stone base, not sand, and also a footer at a min 36" …

Mar 2, 2009 · 2) Maybe not really 4 answers--I was being sarcastic--but actually 2 masons told me concrete slab (3" deep) around perimiter of pool--pinned to the foundation of the pool. and some sort of "pillar" technique. The other two said that they recomend installing the pavers on tamped sand with some sort of crushed concrete base.