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How Much Crushed Stone Do You Need? A SureFire Formula

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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  • Crushed Stone or Crushed Concrete  Modern House Plans by

    Crushed Stone or Crushed Concrete Modern House Plans by

    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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  • Gravel under concrete footing  GreenBuildingAdvisor

    Gravel under concrete footing GreenBuildingAdvisor

    Apr 01, 2015 · If instead you pour your footings on either undisturbed soil or compacted crusher-run gravel, its a good idea to include a few 4" pipes through the footings to connect your sub-slab crushed stone with the perforated pipe installed on the exterior side of the footings.

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  • Ask the Builder | Concrete slab needs quality self

    Ask the Builder | Concrete slab needs quality self

    What type of stone would be best for filling a cavity under a planned two-car garage addition? It is approximately 7 feet deep. The local concrete supplier sells recycled concrete for a really ...

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  • best size stone for under concrete slab

    best size stone for under concrete slab

    Installation of Stone Pavers over Concrete Slab | EarthStone ... Recommended installation of the stone over a concrete slab calls for the use of mortar. ... or measurements to ensure proper stone placement and joint alignment. ... be taken to avoid any voids being generated under any part of the stones. More details » Get Price

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  • gravel under concrete slab? is it absolutely required

    gravel under concrete slab? is it absolutely required

    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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  • 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 recommend pouring your concrete slab 3-4” thick using a 2”x6” wooden 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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  • How Much Does a Concrete Slab for Shed Cost?

    How Much Does a Concrete Slab for Shed Cost?

    The physical size of your shed also determines what will fit in it. The difference between a concrete slab and a slab-on-grade is the thickness of the perimeter. A slab is the same thickness throughout. A slab-on-grade has an 8-inch thick (or thicker) reinforced perimeter that acts as a foundation to support the walls and the edges of the slab.

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  • SelfCompacting 3/4 stone  JLCOnline Forums

    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 "self-compacting". That is, you dump it in a trech (as in under a concrete footing or floor) and you dont have to compact it with a plate compactor - it is already as "compacted" as it needs to be.

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  • The Recommended Gravel Base for a Concrete Driveway

    The Recommended Gravel Base for a Concrete Driveway

    The strength and durability of a concrete driveway are not only determined by the type of concrete mix but also by base or sub-base over which its poured. A layer of gravel placed between the ...

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  • Stone Sizes | David H. Martin Excavating Inc

    Stone Sizes | David H. Martin Excavating Inc

    Below is a general description of stone sizes that are typically available from the quarries. PA2A Size 2 Inch Topsize Description. PA2A is a mixture of coarse stone and crushed stone dust. It is used as a road base or an under-slab fill. It will drain and has a structural coefficient, making it ideal when stability and drainage are a concern.

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  • gravel stone size for concrete slab

    gravel stone size for concrete slab

    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 proper-size concrete aggregate, has …

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  • 2019 Crushed Stone Prices | Crushed Rock Costs  Advantages

    2019 Crushed Stone Prices | Crushed Rock Costs Advantages

    Crushed Stone Uses & Sizes. 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 …

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  • why is it important to have gravel under a concrete slab

    why is it important to have gravel under a concrete slab

    Mar 24, 2010 · If you are just pouring a Slab without footings it is very important that you have firmly packed gravel, 4-6" 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.

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  • Gravel Sizes and Applications  SameDay Aggregates

    Gravel Sizes and Applications SameDay Aggregates

    Crushed stone, on the other hand, is quarried and crushed to a specified size depending on its intended use. Gravel Sizes. Gravel Sizes vary according to the types of commercial, construction and landscaping jobs in which they’re used. Several of the different sizes of stones are most commonly used by construction and landscaping experts.

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  • gravel stone size for concrete slab

    gravel stone size for concrete slab

    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 proper-size concrete aggregate, has …

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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 recommend pouring your concrete slab 3-4” thick using a 2”x6” wooden 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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  • gravel or crushed stone under concrete | Mobile Crushers

    gravel or crushed stone under concrete | Mobile Crushers

    Jan 27, 2015 · gravel or crushed stone under concrete. Liming 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.com. I have poured many small sidewalks and shed floors and never put gravel under the ...

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  • Code Requirements for Concrete Slabs on Grade  EVstudio

    Code Requirements for Concrete Slabs on Grade EVstudio

    Mar 27, 2018 · In addition, you need a base course of 4″ of clean, graded sand, gravel, crushed stone or slag under 2″ when 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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  • How Much Does a Concrete Slab for Shed Cost?

    How Much Does a Concrete Slab for Shed Cost?

    The physical size of your shed also determines what will fit in it. The difference between a concrete slab and a slab-on-grade is the thickness of the perimeter. A slab is the same thickness throughout. A slab-on-grade has an 8-inch thick (or thicker) reinforced perimeter that acts as a foundation to support the walls and the edges of the slab.

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  • Site Preparation: 2.  QUIKRETE: Cement and Concrete Products

    Site Preparation: 2. QUIKRETE: Cement and Concrete Products

    o QUIKRETE® Fiber-Reinforced Concrete Mix eliminates the need for wire mesh reinforcement. It also offers increased resistance to surface cracking and chipping. o QUIKRETE® Concrete Mix is a good general-purpose mix for sidewalk and slab work. o QUIKRETE® All-Purpose Gravel or crushed stone …

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  • Building Site Preparation | Installation of Stone Base

    Building Site Preparation | Installation of Stone Base

    Preparation of a Stone Base for Concrete Slab. When preparing your site for a concrete slab, you need to spread about 4" of 3/4" clean stone on top of your existing and properly prepared stone base (subbase). Then again, level the stone and compact it. Set up your concrete form and put a wire mesh in place slightly elevating it above your stone.

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  • why is it important to have gravel under a concrete slab

    why is it important to have gravel under a concrete slab

    Mar 24, 2010 · If you are just pouring a Slab without footings it is very important that you have firmly packed gravel, 4-6" 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.

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  • How to Calculate Concrete Needed To Pour a Slab | Hunker

    How to Calculate Concrete Needed To Pour a Slab | Hunker

    Apr 18, 2018 · It’s crucial to accurately estimate how much concrete you’ll need for a poured slab. After all, you don’t want to buy more bags of ready-mix concrete than necessary. Fortunately, it’s easy to measure your slab and convert those numbers into cubic feet or …

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  • Aggregate in Concrete  The Concrete Network

    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 proper-size concrete aggregate, has also demonstrated successful performance.

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  • Aggregates

    Aggregates

    Crushed aggregate is produced by crushing quarry rock, boulders, cobbles, or large-size gravel. Recycled concrete is a viable source of aggregate and has been satisfactorily used in granular subbases, soil-cement, and in new concrete. After harvesting, aggregate is processed: crushed, screened, and washed to obtain proper cleanliness and gradation.

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  • Prep for CrackFree Concrete  Construction Pro Tips

    Prep for CrackFree Concrete Construction Pro Tips

    Prep for Crack-Free Concrete. A concrete driveway should last for decades if it’s 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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