Mar 24, 2010· Why is it important to have gravel under a concrete ... and number 7 limestone. the soil should be ... to have gravel under a concrete slab?

BSI-003: Concrete Floor Problems. ... over the top of a plastic ground cover under a concrete slab in ... crushed stone as a capillary break if there ...

gravel or crushed stone under concrete. ... Our crushed gravel size under slab have ... Why Put gravel under concrete?

How much gravel under concrete? - … · How thick should I put a layer of gravel that I will ... here in florida, he use fill for our slab bases. ...

If you're working with concrete, you may have read that you should place crushed stone underneath. But why? Find out if it's really necessary in this post.

Jan 22, 2006· One contractor says to put plastic under the concrete, ... Plastic under concrete floor or ... and Ive never seen anyone put plastic under a garage slab …

crushed stone vs process under a concrete slab ... Crushed Limestone Concrete Aggregate | Texas Crushed Stone Co. ... why put gravel under concrete slab …

How much crushed stone do you need to tackle that DIY project? ... such as granite and limestone. ... such as those that would involve pouring a concrete slab.

I was told by one of the contractor that I needed to put a layer of sand before I poured concrete ... what is under a slab ... (which may be a crushed ...

We just got some crushed stone to put under our concrete pad as well as to ... Crushed Limestone Uses Benefits Why Do I Need ... Pouring A Concrete Slab Do ...

why sand under concrete? why sand under concrete? (post #62287) Rojoho on Wed, 08/18/2004 ... I'm preparing to pour a finish concrete foor, slab on grade.

crushed stone under concrete tile, ... crushed limestone… such as is used under asphalt roads. ... why would you pour a slab of cement then put crushed stone over ...

How to Lay a Crushed Limestone ... as it is less expensive to build than an asphalt or concrete one. As you build a limestone ... You still need to put the ...

Dec 07, 2004· That would put the top of the block about 2 and a half to ... because it was determined the limestone crushed rock Gravel was ... compacting gravel under a slab

Sep 05, 2010· Soil under slab - No crushed stone ... that they would put crushed stone down before laying the slab ... that "the only thing under the concrete is ...

Apr 16, 2011· What kind of stone under concrete slab? ... built a couple threee workshops and garages - all being in southern and non-freeze areas I put down a monolithic slab ...

crushed stone process under a concrete slab. Crushed Limestone Uses & Benefits. ... Jan 29, 2013· Then put in the proper amount of crushed stone bu. ...

How to Pack Down Rock Before Pouring Concrete. ... which results in water pooling under the concrete slab and slowly eroding ... How to Calculate How Much Crushed ...

Proper Subgrade Prep ... material placed under the slab can be open ... how to backfill foundation walls for an area that will end up under concrete flatwork.

Mar 04, 2013· Sand under slab instead of gravel ... a layer of plastic solves the issues with sand under the slab. Ie, sand, plastic, concrete is …

Soil Under SlabNo Crushed Stone UsedBuilding ... why put gravel under concrete slab on gradeaitc.in . What is your base for concrete and your reasons , ...

Don't Use Loose Sand Under Concrete Slabs. ... If specifiers require contractors to place concrete over a sand layer, without an increase in the slab thickness, ...

Apr 02, 2015· Gravel under concrete ... it often makes sense not to connect your sub-slab crushed stone with the perforated pipe on ... put 3/4" clear stone in a …

USES OF CRUSHED LIMESTONE. 1) Road Base. 2) Under slab fill. 3) Aggregate for making concrete. 4) ... Aggregate for making concrete pipe. 29) ...

What is a Subbase/Subgrade? ... then you can put a slab right on top of it without ... Manufactured aggregate works well—crushed recycled concrete aggregate can ...

Nov 26, 2002· How thick should I put a layer of gravel that I will ... here in florida, he use fill for our slab bases. ... How much gravel under concrete?

Crushed Stone or Crushed Concrete. ... (and if there is water flowing under your slab it should be flowing to a drain pipe.) ... It can be limestone, ...

Sep 30, 2004· It is still good construction practice to put a layer of crushed rock under the slab ... We have #57 3/4 clean crushed. It limestone ... Why Put gravel under concrete?

Apr 14, 2010· Put up a sail Just kidding, Just dig out beside it and pour more concrete with pea gravel watered down so it will fill the void. basically your are making a footer ...

May 06, 2010· I have poured many small sidewalks and shed floors and never put gravel under the concrete. ... WHY? I should mention that I always put lots of ... under a slab …

Fill under slab In dry climates you have to put ... Crusher run stone is crushed limestone used to create a base under ... Why Do I Need Crushed Stone Under Concrete?

Here are all the pros and cons of a crushed stone driveway. ... There’s a reason why crushed stone ... as well as the amount of time and effort you want to put ...