Shed Base: Concrete Slab or Gravel? | DoItYourself

Shed Base: Concrete Slab or Gravel? ... of creating a concrete slab versus a gravel ... adequate foundation for any size shed or structure; Cons of Concrete Bases.

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Gravel under garage slab ?? | DIY Forums

Sep 30, 2004· Is gravel usually used under the garage slab or just compacted dirt then ... want stone I say "stone" and what size. ... New concrete slab different shade to …

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gravel stone size for concrete slab - dojokunvda.it

gravel stone size for concrete slab. gravel stone size for concrete slab. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals.

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Deep Fill Under Garage Slab - Masonry - Contractor Talk

Aug 03, 2014· Re: Deep Fill Under Garage Slab IMHO,and in several articles I have read,no drive or garage slab should ever be less than 5" of concrete. One reason that comes to my mind,the concrete coverage of the steel placed in the slab.

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gravel size under concrete slab - gujaratgenomics

best size stone for under concrete slab - … Home » Mining Machine>best size stone for under concrete slab . Products List. ... You need to compact the gravel that will be under the concrete slab using the

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size of stone aggregate for concrete foundation - …

In the process of new dry concrete production, the stability of pit entry clinker raw material component is the premise of the whole system. Raw material homogenization system plays very important role in the stability of pit entry clinker raw material component.

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Gravel under Concrete Slab - Turtlesoft

Concrete estimating unit cost for installation of gravel under a concrete slab. Unit Size: One square ... with gravel chuted in from a concrete truck ...

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Compact Fill Under Slab - Ask the Builder

Compact Fill Under Slab - Concrete bends and ... This gravel is the size of small green peas and it naturally compacts as ... If you have to use crushed stone, ...

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Determining What Size Crushed Stone You Need For …

We've put together a listing of common uses for each size of #stone so you can get a better ... crushed stone and gravel ... mix with asphalt or concrete.

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

Mar 24, 2010· Why is it important to have gravel under a concrete ... have gravel under a concrete slab? ... packed gravel, 4-6" and then about 6" of 3/4 stone, ...

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How to lay stepping-stones on gravel. Guide on laying ...

For our guide on how to lay stepping-stones on gravel we are laying a concrete paving slab called Marshalls Saxon paving. We are using them as stepping-stones and they have an overall square size of 450mm x 450mm (18 inches x 18 inches).

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Gravel Sizes and Applications - Same-Day Aggregates

A similar-sized material, called size #67, is often used as a fill for roadway beds and in the construction of slabs of concrete. • #57 Size: This material is one of the most popular sizes of rock for landscaping purposes.

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Aggregates for Concrete - Civil Engineering

Aggregates for Concrete ... ders, cobbles, or large-size gravel. ... erosion of rocks produce particles of stone, gravel, sand, silt, and clay.

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gravel or crushed stone under concrete - artica …

Gravel Size Under Concrete Slab– Rock … Gravel Size Under Concrete Slab ... Why is it important to have gravel under a concrete slab? ... Installation of Stone Pavers over Concrete Slab ...

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Crushed Stone Grades: A Complete Guide - Braen Stone

Crushed stone #67 – Sizes from 3/4″ down to fine particles. For fill, road and slab base. Crushed stone #1 – Sizes are from 2″ to 4″. The largest of the crushed stone grades. For larger jobs such a culvert ballast. Crushed stone #8 – Sizes from 3/8″ to 1/2″. For concrete and asphalt mix. Crushed stone #3 -Sizes from 1/2″ to 2″.

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gravel stone size for concrete slab - facebookhirdetes.eu

gravel stone size for concrete slab - … Crushed Limestone Concrete Aggregate | Texas… Concrete is used for many things, but probably the most extensive application is concrete road paving and slabs for structures such as homes and commercial ...

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Determining What Size Crushed Stone You Need For …

5/8” – This is also commonly used to mix with asphalt or concrete. It is also used for drainage or as driveway gravel. 3/4” – There are two options at this size – clean and DGA. 3/4” clean is used for drainage behind walls and is also used as fill and for drainage projects, such as French drains.

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what size gravel for slab base - utkarshhospital

Sep 20, 2007· gravel stone size for concrete slab. The Recommended Gravel Base for a Concrete Driveway The Recommended Gravel Base for a …

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Pea gravel for interior floor slab support - Geotechnical ...

Jun 06, 2006· Six inches of pea gravel, I assume that the max particle size is 0.5" or so, should be fine support for most floor slabs. I have used it beneath a waffle type slab on very expansive weak shales and/or hard clays. The ribs of the slab bear on the pea gravel with a very low bearing capacity factor of safety.

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gravel or crushed stone under concrete | Mobile …

crushed stone under concrete tile ... crushed stone under concrete tile ... crushed stone, and crushed concrete products for construction projects ... gravel or crushed.

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The Recommended Gravel Base for a Concrete Driveway

A layer of gravel placed between the soil and the concrete slab prevents ... "The Recommended Gravel Base ... "The Recommended Gravel Base for a Concrete ...

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compacting gravel under a slab - JLC-Online Forums

Dec 07, 2004· Re: compacting gravel under a slab Thanks for your comment Dick, but hopefully they'll be no "oozing" of concrete into the gravel under this slab. I'll 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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Stone & Gravel | Landscaping Supplies North Virginia

¾ inch - #57 Stone: Mulch and Stone delivers bluestone gravel to your home for better ease and accessibility for your home stone projects. Ideal for driveways, drainage systems, pipe bedding, under concrete slabs, under decks and more, bluestone gravel is commonly used to decorative landscaping.

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Pea Gravel Mix| Concrete Construction Magazine | Concrete ...

Pea Gravel Mix How To ... with 3/8-inch maximum size coarse aggregate (pea gravel or crushed stone) using the ACI 211 proportioning procedures for a concrete slab ...

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Mortared Bluestone base - concrete or gravel? - …

Nov 05, 2004· The paver/stone mortar work we've been doing has been over a concrete slab. So we excavate, prep for concrete, pour concrete. After it sets up, we place stone/pavers/etc on a bed of mortar and mud the joints, too.

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Key to a sound concrete slab is compact fill underneath ...

Aug 07, 2015· This gravel is the size of small green peas and it naturally compacts as it's put into a void space. Visit a few local gravel pits in your area to see if they have this small rounded gravel. You can also fill the trenches with a gravel product that's a mixture of washed sand and different sizes of rounded gravel.

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

Mar 24, 2010· Why is it important to have gravel under a concrete ... have gravel under a concrete slab? ... packed gravel, 4-6" and then about 6" of 3/4 stone, ...

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Aggregates - The Portland Cement Association

Coarse aggregates are any particles greater than 0.19 inch, but generally range between 3/8 and 1.5 inches in diameter. Gravels constitute the majority of coarse aggregate used in concrete with crushed stone making up most of the remainder. Natural gravel and sand are usually dug or dredged from a pit, river, lake, or seabed.

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What Size Gravel To Use Under Concrete Pad - Building ...

May 09, 2011· Can I use 3/4" (crushed/angular) gravel under a concrete pad? The pad is 5x5ft. I'll pour 6" concrete over 6" of ??. I'm using #3 rebar. I have a lot of this gravel, and also unsorted

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Crushed Stone Under Concrete: Why It's Needed

Crushed stone under concrete provides a level surface for you to lay your foundation on. If you pour concrete directly over the ground, it could erode away over time, and this would cause your slab to sink.

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What is a Subbase/Subgrade? - The Concrete Network

A slab on ground (or slab on grade) by definition is not intended to be self supporting. The "soil support system" beneath it is there to support the slab. The key for the soil support system is UNIFORM support rather than strong support.

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Stone, Gravel, or Aggregate?| Concrete Construction ...

First, there's really no difference in this context between stone and gravel and aggregate. In C 33 there's a chart showing the grading requirements for different sizes of coarse aggregate from #1 to #8. For example, #1 aggregate is nominal size 3½ …

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How Much Gravel Is Needed When Pouring a Concrete Slab ...

Consider the purpose of the slab in figuring the thickness of the concrete and gravel base. A driveway slab should be 6 inches thick with a 6- to 8-inch gravel base. A walkway or patio slab is typically 4 inches thick with a 4- to 6-inch gravel base.

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Gravel under Concrete Slab | Pilots of America

Jun 28, 2016· For the Civil Engineers out there. Does anyone know of any real reason to spend the money to put gravel under a concrete slab? I have always just graded the dirt under the slab so it drains off to the sides or bottom same as the concrete slab will drain, compacted it and called it good.

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What Kind Of Stone Under Concrete Slab? - Building ...

Apr 16, 2011· What kind of stone under concrete slab? User Name: ... "3/4" road gravel, recycled/ground concrete, ... with him knowing the specific type and size of ...

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How to Pack Down Rock Before Pouring Concrete | …

Whether you pour concrete for a walkway or patio, a strong gravel base is required to prevent the concrete from cracking and shifting. Gravel is especially important in clay soil because it doesn't drain well, which results in water pooling under the concrete slab and slowly eroding the soil as it finally drains.

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Choosing Best Gravel For Concrete Pad - Concrete & …

Jan 06, 2008· Re: Choosing Best Gravel For Concrete Pad does 3/4 mean 3/4" and 57 (or 5/7?) mean 5 to 7 cm stone? I compact it all the same, but doesn't seem to do a …

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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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