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What size crushed stone for concrete slab

Prep for CrackFree Concrete A concrete driveway should last for decades if its properly installed Good finishing techniques will make a slab look great for a while, but proper ground prep will keep it looking that way over its lifetime Here are some great tips on how to prepare the site for a pour

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2019 Crushed Stone Prices Crushed Rock Costs Advan

Crushed rock #67 ranges in size from 3 4 inches to a size of fine particles and is used as a slab, road and fill base Another crushed stone is #411, which is a mixture of #57 stone and stone dust This mixture is used as a base for retaining walls , roads and for patching holes in pavement

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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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Ask the Builder Concrete slab needs quality self

It is approximately 7 feet deep The local concrete supplier sells recycled concrete for a really good price It is very similar to crusher run Due to the design, pacting will be next to

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Code Requirements for Concrete Slabs on Grade EVst

Mar 27, 2018 The International Residential Code IRC lays out a series of requirements for pouring a concrete slab on grade Its more than just forms and pouring concrete! The slab has to be at least 35thick and possibly thicker for expansive or other difficult soils

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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

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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 2

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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

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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,

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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

Here are the most monly found crushed stone sizes and what you can use them for: Dust screenings This is a 1 4minus material that can be used to fabricate concrete pavers or blocks or it can be used as a base for pavers or blocks It is also used to make asphalt and is monly used for walkways, bike paths and in horse arenas

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Gravel under concrete footing GreenBuildingAdvisor

Apr 01, 2015 If instead you pour your footings on either undisturbed soil or pacted crusherrun gravel, its a good idea to include a few 4" pipes through the footings to connect your subslab crushed stone with the perforated pipe installed on the exterior side of the footings

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Gravel under concrete slab is it absolutely requir

If steel is called for, it should be rebars not wire mesh and spacers used I live in a mild environment and we pour exterior unreinforced slabs about 15 x 15 before we start to using reinforcing If we use reinforcing, then it needs to placed in the middle of the slab and meet the Pe ratio of steel to concrete, or it will crack anyway

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How Much Crushed Stone Do You Need A SureFire Form

If your patio is 20 feet long and 10 feet wide, and you need 6 inches of crushed stone for the base, you would plug those numbers into formula, like this: 20x10x05 27 = 37 cubic yards When using this equation, make sure all of your measurements are in feet

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HOW TO DECIDE MAXIMUM SIZE OF COARSE AGGREGATE TO

Mar 23, 2015 Plump large undressed stone embedded with others in concrete on large work above 160 mm and upto any reasonable size may be used in plain concrete work upto a maximum limit of 20 percent by volume of concrete For heavily reinforced concrete members the nominal maximum size of the aggregate should be usually restricted to 6 mm less than the

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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

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Key to a sound concrete slab is pact fill undernea

Aug 07, 2015 One option is to lay concrete block up off the interior ledge of the footers to just below where the concrete slab will be These can be spaced at 4foot intervals around the interior foundation

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Pacting gravel under a slab JLCOnline Forums

Dec 07, 2004 Re: pacting gravel under a slab Tucker: With 2 to 3 feet of rock, I fail to see why you need either poly or insulation under the slab, I think I would opt for the "oozing" and the thickening effect of the "waffle" bottom, I would think that structurally it turns a 3 1 2" slab into something more like a 6 or 8" slab from a structural standpoint

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Patio Design: Understanding Crushed Stone DoItYour

Patio design with crushed stone is easy, practical and more affordable than pavers or poured concrete It stays confined between borders, and resists sinking below ground Its shape creates a mosaic effect on your patio surface Crushed stone is any stone material, including granite, shale or slate

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Prep for CrackFree Concrete Construction Pro Tips

Prep for CrackFree Concrete A concrete driveway should last for decades if its properly installed Good finishing techniques will make a slab look great for a while, but proper ground prep will keep it looking that way over its lifetime Here are some great tips on how to prepare the site for a pour

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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

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SelfCompacting 3 4" stone JLCOnline Forums

Apr 29, 2003 I have a question about 3 4" crushed stone I read several places that 3 4" crushed stone is "selfpacting" That is, you dump it in a trech as in under a concrete footing or floor and you dont have to pact it with a plate pactor it is already as "pacted" as it needs to be

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Site Preparation: 2 QUIKRETE: Cement and Concrete

o QUIKRETEFiberReinforced Concrete Mix eliminates the need for wire mesh reinforcement It also offers increased resistance to surface cracking and chipping o QUIKRETEConcrete Mix is a good generalpurpose mix for sidewalk and slab work o QUIKRETEAllPurpose Gravel or crushed stone

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Specification Limits on SlabonGrade Placement Size

May 13, 2013 Some specifers limit the singleplacement area of concrete slabsonground to 2,000 to 5,000 square feet, but specifications sometimes place a

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Stone Sizes David H Martin Excavating, Inc

#67 stone is primarily a raw coarse aggregate used in the production of readymixed concrete and hotmixed asphalt This material is a minus one inch product with no fines It is a clean material that can be used for several purposes including driveways and walkways, although it will not pact in place

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Subgrades and Subbases for Slabs Concrete Construc

Nov 22, 2017 The right materials and techniques provide a solid foundation Most road base material approved by the local DOT is suitable for the subbase We use 6 to 8 inches of crusher run,says Steve Lloyd, Lloyd Concrete Services, Forest, Va It includes lots of fines and we pact it

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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

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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

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Understanding Crushed Stone Grades Ozinga Blog

Aug 09, 2016 This material is used to create pavers and concrete blocks #57 Crushed stone #57 refers to stone that is about This is typically used for concrete mix, landscaping and drainage #67 Crushed stone #67 includes stone that is or smaller in size This is a

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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

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What size aggregate should be used to make the con

Question: What size aggregate should be used to make the concrete for a 4 inch slab Top Answer 37% of 40 votes: 3 4 inch crushed stone Answer: 3 8 inch crushed stone

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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

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 Loading

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