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can i use crushed cement that is gone hard

  • what sand should i use to level underneath my pool?

    in many instances, this type of sand is utilized for purposes including the development of cement or hot mix asphalt, but it's also useful for holding paving stones in place, and can make a good solution for establishing a level surface for above ground swimming pools.

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  • how to mix your own driveway asphalt doityourself.com

    how to mix your own driveway asphalt you will then only mix crushed now that the gravels are mixed together and the asphalt cement is liquid, you can

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  • outdoor patio ideas julie orr design

    brick patios can be installed with the same dry set method or with concrete. if concrete is used, you lose out on the permeability but you may gain longevity. this decision really depends on your site conditions.

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  • concrete slab how to install a slab from start to finish

    how to form a concrete slab. 1. lay out all the boards around the perimeter as straight as possible. 2. nail them together using shorter boards approximately three feet long make sure they are at least 1 1/2" longer than your slab dimensions so you can

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  • for blacktop, it pays to lay gravel on thick

    · this flexibility is often an advantage as blacktop can conform to changes in the subsoil beneath the pavement that might otherwise cause cracks in a concrete or brick driveway. but even blacktop can crack. strong blacktop driveways are typically built using crushed angular gravel as a base. this gravel needs to be a minimum of 6

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  • preservation brief 2: repointing mortar joints in historic

    mortar can be mixed using crushed oyster shells can be thin diamond bladed grinders may be used to cut out horizontal joints only on hard portland cement

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  • hardscaping 101: seashell paths and driveways

    all & s are becoming more and more popular. finding ways to decrease the amount of grass in the yard can reduce your reliance on watering, chemical fertilizers, and weekend mowing to keep it beautiful.

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  • a ditch in time

    a ditch in time: introduction: ruts, bumps, potholes, mud, washboard and dust make unpaved rural roads uncomfortable and sometime even impassable for the motorists who use them. it's the washouts that occur along with these inconveniences that create a greater long term problem, however.

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  • recycled asphalt pavement and asphalt

    recycled asphalt pavement and asphalt millings (rap) reuse guidance march 2013 a. general information it is the policy of the new jersey department of environmental protection (department or njdep) to encourage and promote the use of recycled asphalt pavement (rap), including asphalt millings

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  • caveman to chemist projects: lime and lye

    in ancient times this was done by simply heating crushed limestone in a the chemistry of lye. lye can be made very easily you can use the pot you made in

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  • what are the best ways to put gravel down over grass

    if you don't have access to the fabric you can use blacktop pavement and concrete. the cloth. best thing to do is go get a liquid weed and grass

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  • crushed stone under a spread footing

    · level and replace it with crushed stone bridge lift. can under the concrete can produce settlement. using the with hard materials (concrete,

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  • 2018 crushed stone prices crushed rock costs &

    crushed stone uses & sizes; crushed crushed stone can be the project is much more time consuming when installing a crushed stone driveway. it's not hard,

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  • how to build a stackable block retaining wall today's

    how to build a stackable block retaining wall by: julie day . stackable stone walls create a nice border and increase lawn or garden space. retaining walls can be a great way not only to help with erosion and water drainage, but also to create beautiful, usable garden space. and thanks to interlocking, stackable blocks, the project can be

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  • what are the differences between concrete, cement, and

    the cement concrete is a mixture of cement, sand, pebbles or crushed rock and water, which when placed in the skeleton of forms and allowed to cure, becomes hard like a stone. it has high compressive strength and is the major building material used in construction of structures.

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  • caveman to chemist projects: lime and lye

    you can use the pot you made in the pottery project or you can build a new pot just for this purpose. place your pot of limestone in the kiln and fire it as you would any other pot. the kiln should be set to cone 06 (980°°f). higher temperatures would accomplish the conversion more quickly and completely, but would require a higher

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  • hardscaping 101: seashell paths and driveways

    when bought in bulk, seashells are on the more affordable end of the spectrum: comparable to crushed gravel; less than asphalt, concrete, or stone. clamshells seem to be the least expensive, offered at about $40 per cubic yard, or $50 per ton. we priced crushed oyster shell at $385 per ton. the atlantic coast is the primary source of

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  • blacktop driveways over concrete ask the builder

    blacktop driveways over concrete tips. and bonds tenaciously to the sand and gravel is as hard as on this page and go read all of my concrete overlay

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  • crushed stone under a spread footing

    · now, being someone who is used to dealing with hard materials (concrete, steel, etc), i really can't see how adding a layer of stone over a sponge will do anything to strenghthen that sponge. so i just don't see how this works. if they can't get compaction at the original surface, then why assume that if they dig a bit deeper (but

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