that is a hard one. You will probly need a hole in the concrete with a drill or something. Or dynimite.
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Look up concrete in Wikipedia for detailed information. Concrete for a foundation or floor is generally mixed in the proportion 1 part cement, 2 parts sand, and 4 parts gravel (or crushed stone). Crushed stone is better than water worn stone as its irregular shape makes for stronger concrete. If a bag of cement is approximately 1 cu. ft., a 1:2:4 mixture calls requires 1 bag cement, 2 cu. ft. sand and 4 cu. ft. stone Since the sand and cement fills the voids of the stone the above quantities yield 4½ cu. ft. concrete. The concrete mixture is mixed, by hand with a shovel or in a portable powered concrete mixer, with water just sufficient to provide a workable mixture for the work in hand. Care is needed not to use too much water as this weakens the final concrete.
In the US a thin wire nail, with almost no head and 3/4" to 2"long is a finish nail. 1/2" long are called brads. note. the UK may have different names for these.
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American Builder - 2004 Andrews Gym Concrete Floor 4-30 was released on: USA: 30 April 2007
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An example of a wedge is a doorstop. The doorstep wedges between the floor and your door, preventing it from moving.
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About 1/2 cubic yard will be enough.
A tool that uses explosive cartridges as its source of force. For example a "nail" driver for use on concrete, it drives a 4 inch to 6 inch barbed "nail" instantly into concrete and sounds and smells just like a gun firing, even leaves powder burns on nearby surfaces.
nail polish
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Look up concrete in Wikipedia for detailed information. Concrete for a foundation or floor is generally mixed in the proportion 1 part cement, 2 parts sand, and 4 parts gravel (or crushed stone). Crushed stone is better than water worn stone as its irregular shape makes for stronger concrete. If a bag of cement is approximately 1 cu. ft., a 1:2:4 mixture calls requires 1 bag cement, 2 cu. ft. sand and 4 cu. ft. stone Since the sand and cement fills the voids of the stone the above quantities yield 4½ cu. ft. concrete. The concrete mixture is mixed, by hand with a shovel or in a portable powered concrete mixer, with water just sufficient to provide a workable mixture for the work in hand. Care is needed not to use too much water as this weakens the final concrete.