• Should I set fence posts in dirt, gravel, crushed rock, or ...

    If you use concrete it''s 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 - 6 inches of dirt on top of the sand.

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  • Can we use m-sand (crusher sand) for concrete instead of ...

    We indeed can. I''ll tell you a small instance why my answer is yes. In Tamil Nadu, India, there''s a court order on mining followed by a mining ban. So the requirement of sand for many high scale projects couldn''t be met. Apparently the progress of...

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  • True or False: Concrete can be made by mixing powdered ...

    Now that you have a hydraulic cement (or mortar) you can mix it with an aggregate such as sand or gravel and create concrete. But the Roman engineers had one more trick up their sleeve. If you were to mix these ingredients together in the manner of modern concrete and place it in a structure, the result would certainly not hold up as well as ...

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  • Use Crushed Concrete Products in

    Sand Separator Layer,,, Use of Crushed Concrete Products in Minnesota Pavement Foundations . 4. Title and Subtitle USE OF CRUSHED CONCRETE PRODUCTS IN MINNESOTA PAVEMENT F01JNDATIONS Mark B. Snyder, Consulting Engineering 1216 …

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  • why sand under concrete?

     · why sand under concrete? I''m preparing to pour a finish concrete foor, slab on grade. The structural plans call for 4″ compacted gravel base, insul-tarp vapor barrier, 2″ of sand and 4″ of concrete. What purpose other than a base for the concrete does the sand serve? Why use it when yopu have thick insul-tarp?

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  • Replacing natural sand by crushed rock in concrete using ...

    Environmental considerations cause pressure on concrete producers to reduce their use of natural sand. The availability of sand is also reducing and in many countries, authorities have put restrictions on the use of natural sand. Crushed rock and waste aggregate tend to have less rounded edges and corners resulting in poorer flow of fresh mortar.

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  • Use of Crushed Stone sand & its impact on Concrete ...

     · The Concrete has been traditionally made with use of Natural / River sand as fine aggregate. As sand contributes to around 25 to 35% of total concrete along with coarse aggregates, cement & water, the properties of the fine aggregates would be one of the major influencing factor in determining the fresh & hardened Concrete properties and performance with respect to workability, …

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  • Crushed Concrete Driveway For the Farm

    This first section (approximately 1,000 ft and 11 or 12 ft wide) is made out of 64 tons of crushed concrete. At a rate of $6 a ton, we paid $384 for the materials at that point. Compare it to $18 a ton for gravel making it $1,152 and we are talking serious saving here. …

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  • 3 Reasons Why It''s Important To Use Crushed Stone Under ...

     · 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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  • Limestone Vs. Crushed Concrete | eHow

    Limestone may appear in crushed concrete as a material found in the cement used to mix concrete. Some builders use crushed concrete as a material for new concrete, in which it takes the place of a crushed mixing stone like limestone. Crushed limestone appears in some of the same applications as crushed concrete. Advertisement.

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  • Why & How to Use Recycled Crushed Concrete

     · Recycling crushed concrete to be reused helps reduce landfill crowding AND saves more resources from being used to create new concrete. Old concrete can be crushed down to specific sizes, cleaned so that unwanted debris is removed from the mixture, and reused as a solution to a number of construction and landscaping problems.

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  • Recycled Concrete: The Pros and Cons

    Recycled Concrete Aggregate At-A-Glance. When a concrete sidewalk, road, parking lot, or structure needs to be excavated and replaced, the concrete is often discarded into a landfill. Because chunks of concrete are not biodegradable and are unable to decompose over time, the waste takes up a great deal of space and creates environmental concerns.

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  • Use of Crushed Rock Sand

    Concrete permits the use of crushed rock sand to totally replace natural sand for concrete. Studies and trial tests conducted in Singapore have demonstrated the suitability of crushed rock sand for use in concrete as total replacement of natural sand. In fact, there are already a …

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  • Sand and Gravel in Concrete | Shelly Company

     · The closer you bring the ratio to an even one-to-one of sand to cement, the stronger the rating becomes. This principles works in the opposite direction as well. If you want to get a little more technical, some concrete experts recommend going for 26 percent sand…

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  • Can I Make Concrete with Just Sand and Cement? (What To Do)

     · The reason concrete cannot be made simply by mixing sand with cement is that it is a composite material that needs a coarse aggregate to achieve this strength. In essence, concrete is a mixture of Portland cement, water, sand, and rocks. The cement or paste coats and binds the sand and rocks. Then, a chemical reaction called hydration, which is ...

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  • Crushed Concrete | Midland Sand

    Our Crushed Concrete ranges from small pieces to powder and works well as fill and driveway gravel. Price and quantity is per ton. How Much Do I Need? Use the simple calculator below to figure out how many tons to order.

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  • What will happen if building sand is used in instead of ...

     · 91309. You never use building sand with a concrete mix, it will make concrete weak . always use sharp sand as it it more coarser and make concrete stronger and give a better colour when dry. 2019-08-02T16:20:03+01:00. Answered 2nd Aug 2019. Like 2.

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  • Importance of Gravel and Sand for Concrete | Hunker

    Concrete is made up of cement and water plus an aggregate composed 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 product''s volume, strength, and durability.

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  • Crushed sand in concrete – Effect of particle shape in ...

     · These findings are also approved by the general concrete production practice of Norway today where the use of crushed sand in concrete is not as straight-forward as replacing coarse natural gravel aggregate with crushed coarse aggregate. The latter is known to only slightly increase the water demand of the mixes, unless shape of the coarse ...

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  • Concrete Sand vs. Mason Sand vs. White Sand

    Mason Sand. Mason sand is created in the same way as concrete sand but is crushed finer. It is also created at the quarry by crushing granite, gneiss, limestone or trap rock then washing it though screens to ensure the uniformity of the grains. It can be used in cement, particularly for projects like swimming pools and concrete paving stones ...

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  • Sand and Gravel in Concrete | Shelly Company

     · The closer you bring the ratio to an even one-to-one of sand to cement, the stronger the rating becomes. This principles works in the opposite direction as well. If you want to get a little more technical, some concrete experts recommend going for 26 percent sand, 41 percent gravel, 11 percent cement and 16 percent water.

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  • Uses of Aggregates

    Concrete aggregates are composed of geological materials such as gravel, sand and crushed rock. The size of the particles determines whether it is a coarse aggregate (e.g. gravel) or a fine aggregate (e.g. sand). The resulting concrete can be used in its natural state or crushed, according to its use …

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  • Can we make concrete using quarry dust as a replacement ...

    Yes As quarry dust(also called as crushed sand) is a byproduct obtained after crushing of stones(rocks) to make aggregates. * Results have shown that the concrete ...

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  • Use of Manufactured Sand in Concrete and Construction An ...

    Concrete, being a physical mixture of cement, aggregate (sand and crushed rocks), and water, is the key construction material across the world. There is now a huge demand for infrastructure which has increased concrete Read More ...

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  • USE OF CRUSHED STONE SAND ITS IMPACT ON CONCRETE …

    USE OF CRUSHED STONE SAND & ITS IMPACT ON CONCRETE PERFORMANCE . ABSTRACT: The Concrete has been traditionally made with use of Natural / River sand as fine aggregate. As sand contributes to around 25 to 35% of total concrete along with coarse aggregates, cement & water,

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  • Crushed Concrete & Concrete Aggregate 101

     · Crushed concrete laid in layers is the perfect base for creating a raised garden bed. Retaining Walls Layering crushed concrete is also a great way to create a retaining wall and control erosion on slopes or hills in your yard. Different sizes of crushed concrete can …

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  • (PDF) The Utilization Of Crushed Stone Dust As A ...

    ----- ----- Date Of Submission:05-09-2018 Date Of Acceptance: 21-09-2018 ----- ----- I. INTRODUCTION use this crushed stone dust in with partially/ fully The crushed stone dust waste as a fine replacement of natural river sand, then this will not aggregate for concrete has been assessed by only save the cost of construction but at the same ...

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  • CONCRETE MIX DESIGN USING CRUSHED SAND

     · The results of mix design indicate that crushed sand can also make as good a concrete as that made of natural sand.The compressive strength obtained is same as of normal mixes fact use of crushed sand will become inevitable in near future because of dwindling sources of natural sand. Crushed sand particle though shaped, does not have the ...

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  • Does Anybody Use Sand as a Base Before They Pour Concrete ...

    Question by Guest_92619001: Does anybody use sand as a base before they pour concrete of a driveway? I was told by one of the contractor that I needed to put a layer of sand before I poured concrete for the driveway. Another contractor told me that no sand is used because it is the cause for cracks as the concrete moves. I am confused.

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  • Choose the Right Sand and Gravel for Your Home Project | A ...

    Driveways can be made with crushed gravel and utility sand in a concrete mix, or gravel laid as is. When using gravel, it is recommended to layer gravel stones in three layers, with the largest on the bottom (3-4 inches in diameter), medium in the middle (2-3 inches in diameter), and crushed gravel on the top (3/8 inch in diameter).

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  • CONCRETE MIX DESIGN USING CRUSHED SAND

    why sand under concrete? - Fine Homebuilding

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  • What is Concrete Sand Types & Specification

     · The Concrete sand is a little stone called aggregate sand composed of gneiss, granite rock or limestone. This specific type of sand firstly screened and then washed adequately. The quality is generally crushed at the quarry then washed condition. This process is made for checking that is anything raw material of there is no big piece of rock in ...

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  • Effect of use of Silica Sand as Fine Material in Concrete

    [5] Her-Yung Wang, "A study of the effects of LCD glass sand on the properties of concrete" Waste Management, 2009, Pg. No. 335 to 341 [6] Farid Debieb, Said Kenai, "The use of coarse and fine crushed bricks as aggregate in concrete" Construction and building materials, 2008, Pg. No. 886 to 893

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