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What size crushed stone under concrete slab

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

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  • 3 Reasons Why Its Important To Use Crushed Stone U

    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:

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  • Best Size Stone For Under Concrete Slab Educationc

    Best Size Stone For Under Concrete Slab Educationc

    How to install a precast concrete sidewalk slab SlabSetters Primarily, slabs are rectangular with sizes under 12"x12" to 24"x30" and weigh up to 120+ lbs other alternatives like poured concrete, asphalting, or patio block stones requirements, and site conditions to ensure the proper slab is used

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  • Code Requirements For Concrete Slabs On Grade EVst

    Code Requirements For Concrete Slabs On Grade EVst

    ar 27, 2018 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 There needs to be a vapor retarder at least 6 mil between the base course and the slab

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  • Concrete Slab How To Install A Slab From Start To

    Concrete Slab How To Install A Slab From Start To

    Click on HOW TO MIX CONCRETE if you want learn how to use bags of concrete mix to do your slab Click on CONCRETE MIXING RATIOS to learn what the correct proportions of cement, sand, stone, and water are to mix your own concrete by hand Click on CONCRETE SLAB CALCULATOR to figure out how much concrete to order

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  • Concrete Slab With Fiber Mesh Or Wire Mesh Reinfor

    Concrete Slab With Fiber Mesh Or Wire Mesh Reinfor

    Concrete Slab with Fiber Mesh or Wire Mesh Reinforcement I suggest you invest in a 4crushed stone, pacted base under the slab This is the true strength of any pavement If the subgrade or rock under the slab is done correctly then the concrete behaves solidly Many homeowners worry about the concrete, which is the skin,

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  • Crushed Stone Or Crushed Concrete Modern House Pla

    Crushed Stone Or Crushed Concrete Modern House Pla

    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

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  • Crushed Stone Producer And Supplier Drains Concret

    Crushed Stone Producer And Supplier Drains Concret

    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,

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  • Crushed Stone Under A Spread Footing Geotechnical

    Crushed Stone Under A Spread Footing Geotechnical

    Dec 17, 2009 Crushed Stone Under a Spread Footing Crushed Stone Under a Spread Footing I wouldnt consider either crushed stone or blinding concrete to improve the settlement situation RE: Crushed Stone Under a Spread Footing just necessary to understand from what thickness of crashed stone or mud slab it can be taken into consideration where i am

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  • Crushed Stone Under Concrete: Why Its Needed

    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

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  • Determining What Size Crushed Stone You Need For Y

    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

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  • Does Anybody Use Sand As A Base Before They Pour C

    Does Anybody Use Sand As A Base Before They Pour C

    Concrete cracks no matter what you do, that is why you see regular spaces groves or lines in sidewalks, its a control joint to allow cracking to occur there rather than where it wants Otherwise, what is under a slab depends on the ground you are pouring the slab on,

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  • Gravel Or Crushed Stone Under Concrete Mobile Cru

    Gravel Or Crushed Stone Under Concrete Mobile Cru

    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

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  • Gravel Size Under Concrete Slab Armeeschuettelch

    Gravel Size Under Concrete Slab Armeeschuettelch

    Hello all, I am building a slab on grade structure using the techniques outlined on this and other reputable sites to prevent moisture and soil gas infiltration through the slab ie 4" of washed, crushed stone on pacted soil, with poly vapor barrier on top of stone and immediately under concrete slab

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  • Gravel Stone Size For Concrete Slab Tuinoasebe

    Gravel Stone Size For Concrete Slab Tuinoasebe

    Aggregate in Concrete The Concrete Network Both gravel and crushed stone are generally acceptable for making quality concrete Photo 9, although gravel is usually preferred for exposed aggregate The use of recycled concrete, crushed to propersize concrete aggregate, has

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  • Gravel Under Concrete Footing GreenBuildingAdvisor

    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

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  • Gravel Under Footings StructuralIntl Bldg And Res

    Gravel Under Footings StructuralIntl Bldg And Res

    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

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  • Gravel Under Garage Floor GreenBuildingAdvisor

    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

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  • He Remended Gravel Base For A Concrete Driveway

    He Remended Gravel Base For A Concrete Driveway

    he Depth of It The gravel base for a driveway should be a minimum of 4 inches deep If heavier vehicles, such as large trucks, will use the driveway regularly, the gravel should be even deeper, up to 12 inches Poor soil or a sloped driveway may also require deeper gravel In general, the thicker the gravel base,

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  • How Much Crushed Stone Do You Need A SureFire Form

    How Much Crushed Stone Do You Need A SureFire Form

    Crushed stone is a material that is typically used as a base or underlayment, upon which the stuff that actually shows for example, the concrete of a patio will rest Guessing is rarely a good solution to such dilemmas when undertaking a big project, so lets look at a

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  • How Much Gravel Under Concrete Tractorbynet

    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

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  • How To Calculate Concrete Needed To Pour A Slab H

    How To Calculate Concrete Needed To Pour A Slab H

    Apr 18, 2018 Hence, a little conversion table is a useful thing to have on hand Remember: 1 cubic yard equals 27 cubic feet, which equals 46,656 cubic inches That means a 80pound bag of concrete mix will yield 06 cubic feet of concrete, a 60pound bag will yield

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  • Key To A Sound Concrete Slab Is Pact Fill Undernea

    Key To A Sound Concrete Slab Is Pact Fill Undernea

    Aug 07, 2015 DEAR TOM: Unpacted fill under a concrete slab be it for an entire home, an exterior patio, a front porch or a driveway is a recipe for disaster Concrete is an amazing material, but it

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  • Pacting Gravel Under A Slab JLCOnline Forums

    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

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  • Patio Design: Understanding Crushed Stone DoItYou

    Patio Design: Understanding Crushed Stone DoItYou

    Crushed stone is one of the most reliable base materials you can use under a patio surface of pavers or slabs Dig a patio base 10 inches below grade and lay a flat base of 2 inches of sand After leveling, place sheets of erosionreducing fabric over the sand Place a 6inch depth of crushed stone on the fabric

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  • SelfCompacting 3 4 Stone JLCOnline Forums

    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

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  • Shed Base: Concrete Slab Or Gravel  DoItYourself

    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

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  • Shed Foundations Made Easy The Best Types Explain

    Shed Foundations Made Easy The Best Types Explain

    Small sheds can be rested on crushed stone with either treated wood foundations or concrete foundation blocks Large sheds will need to have strong foundations Considering Backyard Buildings smallest shed size is 88, all of our sheds will need a foundation setup prior to the arrival of one of our installers

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  • Slab On Grade Construction Contractor Talk

    Slab On Grade Construction Contractor Talk

    eb 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 ,,,

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  • Subgrades Subbases For Concrete Slabs The Concrete

    Subgrades Subbases For Concrete Slabs The Concrete

    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

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  • Understanding Basements Building Science Corporat

    Understanding Basements Building Science Corporat

    Oct 26, 2006 The concrete slab should be sealed to the perimeter basement wall with sealant the concrete slab bees the air barrierthat controls the flow of soil gas into the basement The crushed stone drainage layer under the basement concrete slab should be vented to the atmosphere to control soil gas Figure 3

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  • What Kind Of Stone Under Concrete Slab Building

    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

    more
  • What Size Gravel To Use Under Concrete Pad Buildin

    What Size Gravel To Use Under Concrete Pad Buildin

    ay 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

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  • What Type Of Base Do You Need For A Hot Tub  Spa

    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

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  • Why Is It Important To Have Gravel Under A Concret

    Why Is It Important To Have Gravel Under A Concret

    ar 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 Loading

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