There are 45 80-pound bags and about 60 60-pound bags of concrete in a cubic yard. Each 80-pound bag of concrete covers about 0.6 cubic feet. There are 27 cubic feet in a cubic yard: 27/.6 = 45.
Continue ReadingThough the number of 80 pound bags is exact at 45, overestimating the number of bags needed is a common construction practice to account for the minor variations found in building materials. In addition, most building applications do not use perfectly cubed yardage of concrete, as most slabs are poured just four to six inches thick, and footers for deck support tend to be cylindrical.
Learn more about Building MaterialsThe average price of a cubic yard of concrete is around $90, as of 2015. The exact price varies by location and the quality of the concrete.
Full Answer >To pour a 4-inch slab that measures 1 square yard, use six 80-pound bags of concrete, and for a 6-inch slab, use eight 80-pound bags of concrete. One 80-pound bag of concrete covers 4 square feet at a thickness of 2 inches.
Full Answer >The easiest way to make concrete shiny is by applying a glossy concrete sealant according to SF Gate Home Guides. Once concrete is stained and cleaned, water-based acrylic sealer or polyurethane-epoxy sealer can be applied to the concrete.
Full Answer >A concrete slab calculator works by calculating the amount of concrete needed in cubic feet by multiplying together the values in feet for the length, width and depth of the concrete slab. The result is divided by 27 to get cubic yards.
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