Home > What size crushed stone under concrete slab

What size crushed stone under concrete slab

Jul 07, 2004 Under a slab this is unlikely to be problamatic if continuous perimeter footings are founded below the bottom of the gravel layer irregular stone, varying in size from 3 8" to 1 1 2" It was set in a trench with a sloped bottom, from 24" to 48" deep crushed stone or gravel is the correct material to be used, depending on your area it

Get a Quote Send Message

Our Hot Products

Whatever your requirements, you 'll find the perfect service-oriented solution to match your specific needs with our help.We are here for your questions anytime 24/7, welcome your consultation.


PRODUCT INFORMATION

Our Hot Products - Have been exported to more than 150 countries and well recognized as money-maker for mining and mineral industries.

3 Reasons Why Its Important To Use Crushed Stone U

Apr 28, 2014 Concrete may seem strong, but after many years, elements, and pressure, it will eventually crack So in order to make your concrete last as long as your money that went into it, adding a layer of crushed stone under a slab of concrete will increase the life of your investment Here are 3 reasons why a layer of crushed stone is important to the life of your concrete:

View More Details

Code Requirements for Concrete Slabs on Grade EVst

Mar 27, 2018 Code Requirements for Concrete Slabs on Grade The fill that goes in must be pacted and no more than 24deep for sand or gravel or 8deep for earth In addition, you need a base course of 4of clean, graded sand, gravel, crushed stone or slag under 2when the slab is below grade unless the existing soil is exempted by the soils report

View More Details

Compact Fill Under Slab askthebuilder

DEAR TOM: Unpacted fill under concrete slabs of any type is a recipe for disaster The slab could be for an entire home, it might be an exterior patio slab, a front porch slab, a driveway, etc Concrete is an amazing material, but it has an Achilles heel

View More Details

Concrete Slab How to install a slab from start to

THE TOOLS YOU NEED TO BUILD A CONCRETE SLAB Ive made a list of the 14 tools you will need to build a concrete slab The list includes the tools you need to form the slab and the tools to pour the concrete also CHECK IT OUT HERE HOW TO FORM A CONCRETE SLAB 1 Lay out all the boards around the perimeter as straight as possible 2

View More Details

Crushed Stone Grades: A Complete Guide

Crushed stone #67 Sizes from 3 4down to fine particles For fill, road and slab base Crushed stone #1 Sizes are from 2to 4The largest of the crushed stone grades For larger jobs such a culvert ballast Crushed stone #8 Sizes from 3 8to 1 2For concrete and asphalt mix Crushed stone #3 Sizes from 1 2to 2For drainage and railroad projects Crushed stone #10 also called stone dust Screenings

View More Details

Crushed Stone or Crushed Concrete Modern House Pla

Jun 30, 2010 Hey, we can get crushed concrete for less than crushed stone lets use it Thats fine, but you really have to think about where you are using it If you are talking about the layer of stone you lay below a slab on grade for your home, then I think this is not a good place for crushed concrete

View More Details

Crushed Stone Producer and Supplier Drains, Concre

Crushed Stone #57 3 4 inch Clean Crushed Stone This product is used in many applications in ready mixed concrete; in Bituminous concrete black top; as a leveling and bedding material under concrete slabs; in filter beds of septic systems; in foundations drains, French drains; bination drains; and driveways Quarry Process Type 5,

View More Details

Crushed Stone Under Concrete: Why Its Needed

When working with concrete slabs, its important to take the appropriate steps to ensure that it lasts for many years to e In order to get the most use out of your concrete slabs, you need to add a layer of crushed stone beneath it firstPlacing crushed stone under concrete serves several purposes and can provide the following benefits

View More Details

Determining What Size Crushed Stone You Need For Y

Crushed stone is used for a wide variety of projects, from building roads to providing suitable drainage and from laying a base for pavers to enhancing the look of landscaping projects There are so many uses for this versatile material, yet many people are unsure of what size they need when it es to selecting the proper material for their project

View More Details

Gravel or crushed stone under concrete Mobile Crus

Jan 27, 2015 gravel or crushed stone under concrete heavy industry is specialized in the design, manufacture and supply of crushing equipment used in mining industry Our crushed gravel size under slab have Why Put gravel under concrete HomeOwnersHub I have poured many small sidewalks and shed floors and never put gravel under the

View More Details

Gravel under concrete footing GreenBuildingAdvisor

Apr 01, 2015 Some builders fill the bottom of their excavation with 4 inches of crushed stone, and then pour their footings on top of the crushed stone If you do that, water can flow readily under the footings

View More Details

Gravel under concrete slab is it absolutely requir

Its about 375 cu yards of crete, or like $400 It will cost $100 for gravel to fill in 2", but my crete is still only a little cheaper, and it will be a thinner slab I could put gravel in, say 2" and 35" of concrete over that or just full 55" of crete or I could do lot of gravel and a 2" top coat over that with a bunch of steel and fibers,

View More Details

Gravel under footings StructuralIntl Bldg and Resi

Jul 07, 2004 Under a slab this is unlikely to be problamatic if continuous perimeter footings are founded below the bottom of the gravel layer irregular stone, varying in size from 3 8" to 1 1 2" It was set in a trench with a sloped bottom, from 24" to 48" deep crushed stone or gravel is the correct material to be used, depending on your area it

View More Details

Gravel under garage floor GreenBuildingAdvisor

Apr 19, 2016 The subgrade preparation gravel layer is a structural element very important for the longevity of the concrete slab, entirely apparent from its role in water control In my area, no one would use sand 4 to 6 inches, pacted densely 90% or to refusal, of

View More Details

How Much Crushed Stone Do You Need A SureFire Form

Since we needed 6 inches of crushed stone, we used 05 feet for the height that is, we converted inches into feet If your number es out as a fraction and it probably will round up In the example above, you would round the 37 cubic yards of crushed stone to 4 cubic yards of crushed stone

View More Details

How much gravel under concrete tractorbynet

Nov 26, 2002 For something like garage 8" of pacted stone and 4" of reinforced concrete would be a minimum and 12" or stone and 6" of concrete would hold just about anything This gravel has a wide gradation of material size including some clay fines Under proper paction techniques, ie When you are ready to pour your slab after a couple

View More Details

Importance of Gravel and Sand for Concrete Hunker

Apr 12, 2018 Concrete is made up of cement and water plus an aggregate posed of sand and gravel The sand and gravel do more than act as filler, though The size and amount of gravel added to a bag of concrete also determines the products volume, strength, and durability

View More Details

Pacting gravel under a slab JLCOnline Forums

Dec 07, 2004 Re: pacting gravel under a slab Thanks for your ment Dick, but hopefully theyll be no "oozing" of concrete into the gravel under this slab Ill have a layer of thick poly ontop of the gravel then a layer of 2 inch rigid insulation under the slab

View More Details

Proper Subgrade Prep Concrete Construction Magazin

Sep 20, 2007 The top 6 to 12 inches of the backfill under the slab should be filled and pacted with wellgraded gravel or crushed material Walls are typically backfilled with the removed earth or with a granular, opengraded material,says Tull

View More Details

Sand under slab instead of gravel GreenBuildingTal

Mar 04, 2013 Id want to know why the sand is so wet in the first place If its just due to weather exposure and would drain dry if under cover, thats one thing If its due to high water table, I might be inclined to build up the slab area with crushed stone aka "gravel" in

View More Details

SelfCompacting 3 4" stone JLCOnline Forums

Apr 29, 2003 The Alaskan pipeline, and any set of railroad tracks are other good examples of crushed washed rock as a footing I believe that anything above 3 8 inch to 3 4 inch, as long as it is consistently the same size, and any crushed product of the same size will meet this classification

View More Details

Shed Base: Concrete Slab or Gravel DoItYourself

Some locales consider any building, no matter how small or large, to be a permanent structure if it is erected on a concrete slab This may or may not matter to you, but if you dont want to declare your shed permanent, consider a gravel base

View More Details

Slab On Grade Construction Contractor Talk

Feb 16, 2009 hi evry one , i was wondering what is the need of the base course layer which need to be excuted under the slab on grade , and if i used a single size crushed stone instead of nutural filling material , is it right to use base course on top of it ,,,

View More Details

Subgrades and Subbases for Slabs Concrete Construc

Nov 22, 2017 Place a concrete floor on an unstable subgrade or subbase and youll probably pay for it two ways During construction youll either waste concrete or end up with a floor thats too thin in spots because the subgrade subbase is uneven After construction, the floor is likely to settle and

View More Details

Subgrades Subbases for Concrete Slabs The Concrete

The weaker the subgrade, or the heavier the loads, then, the thicker the slab needs to be Concrete strength also es into play, but most slab concrete is around 3000 to 4000 psi, so its not a major factor The tensile strength of concrete is typically taken as 10 to 15% of the pressive strength, so only about 400 or 500 psi

View More Details

he Remended Gravel Base for a Concrete Driveway H

2 Fix Ruts in Crushed Stone A layer of gravel placed between the soil and the concrete slab prevents damage from shifting and heaving and increases the weightbearing capacity of the driveway

View More Details

What do you use under concrete Everything About Co

We dont use recycled concrete under any concrete floors we install We use mostly gravel and sometimes the stone I would also remend a vapor barrier of 6 mil poly on top of the stone before you pour the concrete

View More Details

What Kind Of Stone Under Concrete Slab Building

Apr 16, 2011 What kind of stone under concrete slab I am getting ready to have a foundation poured for a garage this summer, I am new to foundations so I asked my building inspector what kind of stone I needed under the slab and the only response he would give me was "You figure it out" It would have taken him less effort to list the stone, but thats for

View More Details

What Size Gravel To Use Under Concrete Pad Buildin

May 09, 2011 Can I use 3 4" crushed angular gravel under a concrete pad The pad is 5x5ft Ill pour 6" concrete over 6" of Im using #3 rebar I have a lot of this gravel, and also unsorted sand, so Im hoping one of those options are ok to use

View More Details

What Type of Base Do You Need For a Hot Tub Spa

We remend pouring your concrete slab 34thick using a 2x6wooden frame to create your form If it is not a project you want to take on yourself here at Precision we can provide the pad installation for you Placing a Hot Tub on Crushed Stone A simple an inexpensive way to prep the ground for a new spa is by using a crushed stone base

View More Details

Why is it important to have gravel under a concret

Mar 24, 2010 If you are just pouring a Slab without footings it is very important that you have firmly packed gravel, 46" and then about 6" of 3 4 stone, the 3 4 stone will allow the slab to float, and move, rather than crack when the gravel shifts

View More Details