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How To Pack Down Rock Before Pouring Concrete Home, Excavate the soil to a depth of 8 inches allowing 4 inches for the gravel base and 4 inches for the concrete slab the soil should be graded or sloped so the excavation sites center is Gravel Stone Size For Concrete Slab
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How To Pack Down Rock Before Pouring Concrete Home
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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
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Crushed stone process under a concrete slab crushed stone process under a concrete slab product capacity 52200th max feeding size 1251500mm output size 10400mm jaw crusher is the vital equipment in crushing industry the highest compressive strength of the crushing materials is 320mpa get price list
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Gravel stone size for concrete slab 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 sizereduction requirements including quarry aggregate and different kinds of minerals get price
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Jun 24 2020 size 10 gravel can be made from a variety of larger stones but is most often made from slag or limestone size 57 gravel is often used to make walkways or for decoration size 67 is usually about the same size as 10 but often has a slightly different purpose its commonly used as fill in roadways and concrete slabbing
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Crushed stone process under a concrete slab crushed stone process under a concrete slab product capacity 52200th max feeding size 1251500mm output size 10400mm jaw crusher is the vital equipment in crushing industry the highest compressive strength of the crushing materials is 320mpa get price list
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X stone consists largely of this size stone can consist of up to 15 of this size stone can consist of up to 10 of this size each stone gradation can contain up to 10 upper and lower grades and some fine material sand
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Crushed stone 67 sizes from 34 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 38 to 12 for concrete and asphalt mix crushed stone 3 sizes from 12 to 2
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Jul 31 2018 concrete strength also comes 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 compressive strength so only about 400 or 500 psi
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What size of gravel is used as a substrate for concrete slabs sep 03 2019 hello at the foot of our garden the water collects and very slowly drains away which causes it to be very muddy pretty much all of the time so we are going to put down 3x2 concrete slabs in this area we are going to dig out the top layer of grass and soil down a few inches would 10mm gravel be a suitable base to put
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Excavate the soil to a depth of 8 inches allowing 4 inches for the gravel base and 4 inches for the concrete slab the soil should be graded or sloped so the excavation sites center is
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Nov 22 2017 almost 20 years ago concrete construction investigated the effect of using a layer of loose uncompacted sand directly beneath a concrete slab and concluded that this practice contributed to more laterage cracks and poorer joint performance here are the reasons not to use a sand layer difficult to maintain a flat level sand surface during concrete placement difficult to
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Nov 26 2002 not just ordinary gravel what is needed is processed gravel of the type that your county will put on its gravel roads this gravel has a wide gradation of material size including some clay fines under proper compaction techniques ie plate compactor and correct amount of water a well compacted gravel base will feel like concrete itself
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Jul 31 2018 concrete strength also comes 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 compressive strength so only about 400 or 500 psi
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Mar 27 2018 the fill that goes in must be compacted and no more than 24 deep for sand or gravel or 8 deep for earth 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
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What size of gravel is used as a substrate for concrete slabs sep 03 2019 hello at the foot of our garden the water collects and very slowly drains away which causes it to be very muddy pretty much all of the time so we are going to put down 3x2 concrete slabs in this area we are going to dig out the top layer of grass and soil down a few inches would 10mm gravel be a suitable base to put
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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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For our guide on how to lay steppingstones on gravel we are laying a concrete paving slab called marshalls saxon paving we are using them as steppingstones and they have an overall square size of 450mm x 450mm 18 inches x 18 inches
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Jan 06 2008 choosing best gravel for concrete pad for concrete deck or slab prolly should tamp it nobody ever does though if you dont tamp it at least wait a week or so before you pour does 34 mean 34 and 57 or 57 mean 5 to 7 cm stone i compact it all the same but doesnt seem to do a whole lot except aroudn the edges
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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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X stone consists largely of this size stone can consist of up to 15 of this size stone can consist of up to 10 of this size each stone gradation can contain up to 10 upper and lower grades and some fine material sand
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