News Center
why do i need crushed stone under concrete

why do i need crushed stone under concrete

Crusherrun gravel compacts well but does not drain very fast at least not as fast as 34inch crushed stone no fines Talk to a soils engineer if you are worried but in my experience either crusherrun gravel compacted or 34inch crushed stone can be used under footings So can rigid foam An engineer may disagree

[email protected]

News Detail

  • How important is gravel under a concrete sidewalk Home
    How important is gravel under a concrete sidewalk Home

    Oh and BTW roundedriver gravel is not best a CRUSHED rock product though same size as gravel typically 12 or 34 minus for this purpose is much better does not move around as much under load though under a sidewalk not anywhere as near important as under a driveway where rounded gravel can cause significant issues

    Get Price
  • shouldnt I have gravel under concrete footers DIY Home
    shouldnt I have gravel under concrete footers DIY Home

    Sep 29 2012 · Our contractor is telling me that a layer of gravel is not needed under the concrete footers I called the inspections office in my area and spoke to the lead inspector in my area and he told me the same thing but couldnt tell me why gravel isnt needed under the poured concrete I called the inspector for a second opinion

    Get Price
  • why do i need crushed stone under concrete
    why do i need crushed stone under concrete

    Why Put gravel under concrete Google Groups 06052010· gravel under the concrete I want to pour a driveway section in front of the garage and was told by a guy at the concrete company who came to measure the amount needed that I need to put gravel under the concrete WHY

    Get Price
  • How to Pack Down Rock Before Pouring Concrete Home
    How to Pack Down Rock Before Pouring Concrete Home

    Dec 09 2018 · 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

    Get Price
  • Do you need to put gravel under a concrete pad Yahoo
    Do you need to put gravel under a concrete pad Yahoo

    May 12 2008 · I am a concrete worker and the answer is yes It helps with the drainage and also with the settling of the concrete so the cracks are minimal You want 4 inches of gravel under 4 inches of concrete Any less concrete and you will have problems in the near future Dig down 8 inches in your backyard the size of the pad you are pouring

    Get Price
  • Should vapor barrier in slab be under 4 in of gravel or
    Should vapor barrier in slab be under 4 in of gravel or

    2part question 1 Im building a 2car garage with upstairs apartment in zone 4 26 x 28 getting different opinions on whether the vapor barrier 6ml plastic should be under the 4 of gravel or on top of the gravel directly under slab Some are saying it is not good to pour concrete right on plastic although this seems to be the most common way to do it

    Get Price
  • Do I Need to Lay Gravel Before Pavers Hunker
    Do I Need to Lay Gravel Before Pavers Hunker

    Oct 28 2020 · You dont always need to do so but it may be helpful depending on the way you are using the pavers Tip You dont have to lay gravel before pavers but doing so can be beneficial to your project Preparing the Area Properly Pavers are available in concrete brick and natural stone and in a wide variety of colors Check the concrete

    Get Price
  • What kind of stone under concrete slab DIY Home
    What kind of stone under concrete slab DIY Home

    Apr 16 2011 · 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 another day Anyways help is appreciated I have come across a dozen different

    Get Price
  • Crushed Stone Calculator Free Online Tool
    Crushed Stone Calculator Free Online Tool

    With a crushed stone calculator nothing is left to chance What information do I need In order to use a crushed stone calculator you’ll only need 3 simple pieces of information For a rectangular coverage area you’ll need to carefully measure both the length and width of the project location

    Get Price
  • How Much Crushed Stone Do You Need A SureFire Formula
    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

    Get Price
  • Should You Put Gravel Under a Deck Heres the Answer
    Should You Put Gravel Under a Deck Heres the Answer

    Sand soil and mulch are options stone is better The best gravel for use under a deck is crushed stone It prevents erosion weeds keeps moisture away from the underside of the deck and looks much better than mud or weeds Hopefully you have a better understanding of why you should put gravel under your deck and why it is the better choice

    Get Price
  • Does anybody use sand as a base before they pour concrete
    Does anybody use sand as a base before they pour concrete

    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 some soils dont need anything some need a

    Get Price
  • 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 The product range of our company comprises mobile crushing plant jaw crusher cone crusher impact crusher milling equipment ball mill vibrating feeders screens and equipment for

    Get Price
  • why do i need crushed stone under concrete
    why do i need crushed stone under concrete

    Why Put gravel under concrete Google Groups 06052010· gravel under the concrete I want to pour a driveway section in front of the garage and was told by a guy at the concrete company who came to measure the amount needed that I need to put gravel under the concrete WHY

    Get Price
  • Why do I need a Crushing and Screening Plant General
    Why do I need a Crushing and Screening Plant General

    Nov 05 2019 · The Crushing and Screening Plant General Permit allows activity requiring crushed stone andor the production of concrete under air quality rules Concrete batch plants can also be operated under this permit to produce concrete In PM10 particulate matter 10 micrometers or less in diameter attainment areas this general permit allows for 6500 tons per day for crushing and

    Get Price
  • What Type Of Gravel Under Concrete Slab Walesfootprint
    What Type Of Gravel Under Concrete Slab Walesfootprint

    3 Reasons To Use Crushed Stone Under Concrete Slabs B R Sand Proper Subgrade Prep Concrete Construction Magazine Aggregates The Difference Between Crushed Stone And Gravel View Of A The Concrete Slab Over Vault Edge Beams And B Gravel Vs Concrete Shed Base Which Is

    Get Price
  • 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 · For the best answers search on this site httpsavT7K I would suggest using 6 of compacted sand and 4 of concrete It is necessary to have the original concrete floor broken if not it should be broken to allow any trapped moisture to drain to the sub grade under the original floor

    Get Price
  • Subgrades and Subbases for Slabs Concrete Construction
    Subgrades and Subbases for Slabs Concrete Construction

    Nov 22 2017 · “We use 6 to 8 inches of crusher run” says Steve Lloyd Lloyd Concrete Services Forest Va “It includes lots of fines and we compact it to 98 We will not use 57 stone that’s like trying to place a slab on marbles I’ll turn down any job that specifies 57 stone as a subbase” Reasons to Avoid Placing a Sand Layer

    Get Price
  • What You Need to Know about Paver Base Material TNC
    What You Need to Know about Paver Base Material TNC

    Sep 07 2016 · The base material is commonly made of crushed stones or concrete For the crushed stones there are some choices available to pick including gravel and limestone concrete stone or any other you need to consider about the sand base if really want the paved area to look totally beautiful at the end of the construction process

    Get Price
  • what do you use under concrete
    what do you use under concrete

    We dont use recycled concrete under any concrete floors we install We use mostly gravel and sometimes the stone I would also recommend a vapor barrier of 6 mil poly on top of the stone before you pour the concrete

    Get Price
  • Crushed Stone Under a Spread Footing Geotechnical
    Crushed Stone Under a Spread Footing Geotechnical

    Dec 17 2009 · However a mud mat blinding concrete will also do the same thing about 5 to 10 mm of 5 to 10 MPa concrete RE Crushed Stone Under a

    Get Price
  • Should I set fence posts in dirt gravel crushed rock or
    Should I set fence posts in dirt gravel crushed rock or

    If you use concrete its still the dirt around the concrete that supports the fence you have just added 30 pounds of concrete to the bottom of it If your soil has good percolation and water can settle away quickly as I do where I am in Wisconsin I prefer to use sand most of the way up and bout 4

    Get Price
  • What Size Crushed Stone Under Concrete Slab FTMLIE
    What Size Crushed Stone Under Concrete Slab FTMLIE

    What Size Crushed Stone Under Concrete Slab When working with concrete slabs it’s important to take the appropriate steps to ensure that it lasts for many years to come In order to get the most use out of your concrete slabs you need to add a layer of crushed stone beneath it g crushed stone under concrete serves several purposes and can provide the following benefits

    Get Price
  • How Thick Should a Paver Be to Go on Crushed Concrete
    How Thick Should a Paver Be to Go on Crushed Concrete

    Proper Crushed Concrete Preparation The crushed concrete base should be 4 to 6 inches thick After leveling your soil for the walkway spread a 2inchdeep layer of crushed concrete across the site

    Get Price
  • Patio Design Understanding Crushed Stone
    Patio Design Understanding Crushed Stone

    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

    Get Price
  • Installing A Concrete Slab DIY Concrete Slab
    Installing A Concrete Slab DIY Concrete Slab

    Oct 22 2020 · What Size Crushed Stone For Concrete Slab There are a few benefits to adding a layer of crushed stone under a concrete slab It can improve the lifespan of the slab if its handled properly The surface you’re putting the crushed stone on will dictate what size crushed stone you should use

    Get Price
  • Why do I need a Crushing and Screening Plant General
    Why do I need a Crushing and Screening Plant General

    Nov 05 2019 · The Crushing and Screening Plant General Permit allows activity requiring crushed stone andor the production of concrete under air quality rules Concrete batch plants can also be operated under this permit to produce concrete In PM10 particulate matter 10 micrometers or less in diameter attainment areas this general permit allows for 6500 tons per day for crushing and

    Get Price
  • Ask the Builder Concrete slab needs quality self
    Ask the Builder Concrete slab needs quality self

    Feb 10 2015 · What type of stone would be best for filling a cavity under a planned twocar garage addition It is approximately 7 feet deep The local concrete supplier sells recycled concrete for a

    Get Price
  • should you put crushed stone under a garage floor
    should you put crushed stone under a garage floor

    What material do you suggest we use to fill and level so we can get the concrete floor poured A Pea stone will work as long as you compact it You could also use 34 inch crushed gravel this doesnt have any rocks larger than 34 of an inch and it rakes out pretty easy Again also compact this Get Price

    Get Price
  • should I use stone under my cellar floor
    should I use stone under my cellar floor

    My cellar is dirt Should I lay stone before I lay the concrete A Yes First determine how much head room you need You may need to dig out some of the existing subbase before adding crushed rock Check the building codes in your area Once the subbase is ready and level add two to three inches of 34 inch crushed rock over it

    Get Price
  • Patio Design Understanding Crushed Stone
    Patio Design Understanding Crushed Stone

    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

    Get Price
  • Concrete Floor Problems Building Science Corporation
    Concrete Floor Problems Building Science Corporation

    We can use crushed stone as a capillary break if there are no fines in the crushed stonesbut the stones don’t act as a vapor barrier So it is common to use crushed stones with no fines as a capillary breakand then add a plastic sheet over the top of the stones in contact with the concrete as a

    Get Price
  • flagstone patio on crushed stone Do It Right Not Over
    flagstone patio on crushed stone Do It Right Not Over

    They are a byproduct of the rockcrushing process and are a very important component for the base material under your proposed patio If you were to use just crushed limestone with no fines the flagstone would have a good base but not the best The introduction of these fines is what allows the crushed limestone to mimic poured concrete

    Get Price
  • Crushed before footing Fine Homebuilding
    Crushed before footing Fine Homebuilding

    Apr 03 2007 · Plate compactors which have a plate 2 or 3 feet square arent what you generally need here theyre for compacting the fill under a slab etc A jumping jack though or a narrow plate compactor about halfway between the jumping jack and the regular plate compactor will do a pretty decent job producing several inches of compaction in

    Get Price
  • Building a Retaining Wall 8 Dos and Donts Bob Vila
    Building a Retaining Wall 8 Dos and Donts Bob Vila

    The ends of the drainpipe should then exit on each end of the wall and you may cover them with crushed stone to camouflage their appearance RELATED The 10 Best Things You Can Do

    Get Price
  • How much gravel under concrete TractorByNet
    How much gravel under concrete TractorByNet

    Nov 26 2002 · Better to do it in two lifts compacting between each one Ive never seen sand used as a base for a concrete pour but maybe thats different for different parts of the country Check out some of the concrete websites lot of good info out there

    Get Price
  • How Much Base Material Do I Need for Walkways Patios
    How Much Base Material Do I Need for Walkways Patios

    Another way of figuring this out is that 1 yard of crushed stone will get you 80 square feet at 4inches thick Figuring out how much sand that you will need is done much the same way Since you only need a 1inch bed of sand to set your pavers on just take your square footage measurement from the stone and this time multiply by 00309

    Get Price
  • Do I Need a Concrete Pad for a Swim Spa Clearwater
    Do I Need a Concrete Pad for a Swim Spa Clearwater

    The fact is that it’s not completely necessary This article will go over the reasons why a concrete pad is often preferable as well as some of the alternative bases that can be used Concrete Pad The reason that concrete pads are consistently used as a base for a swim spa is that they can be constructed to the exact specifications needed

    Get Price
  • Vapor Barriers under Concrete Floor Slabs Friend or Foe
    Vapor Barriers under Concrete Floor Slabs Friend or Foe

    The American Concrete Institute’s Guide for Concrete Floor and Slab Construction recommends that the thickness of the vapor retarder be at least 10 mils Puncture studies of 6 8 10 and 20mil vapor retarder materials have shown that 10 mils is the minimum thickness that should be considered and thicker material may be necessary over

    Get Price
  • Do I Need a Concrete Pad for a Swim Spa Blog
    Do I Need a Concrete Pad for a Swim Spa Blog

    Once the stone is laid the weight of the swim spa can be used to further compress the stone and ensure it’s level Concrete Pad So far in this article we’ve given a bunch of alternatives to using a concrete pad as a base for a swim spa However the concrete pad is

    Get Price
edge-iconHot Product
  • Agitation Tank
    Agitation Tank

    Stirring tank is suitable for mixing before flotation, for various metal and ores to adequately mix pharmaceutical and pulp, and it can also be used for mixing other non-metallic minerals.

  • Belt Conveyor
    Belt Conveyor

    The convery belt is mainly composed by the expansion cylinder on both ends and the closed belts tightly knotted on them.

  • Chinaware Ball Mill
    Chinaware Ball Mill

    Chinaware ball mill is mainly used for the mixing and grinding of materials, and the fineness of the final products is even, thus saving motive power. It can be used in both dry grinding and wet grinding.

  • Ball Mill
    Ball Mill

    The ball mill is one of the most widely used super fine grinding machine in the industry and it is the key grinding equipment after materials have been crushed.

edge-iconRelated News
toTop
Click avatar to contact us
Chat Online