Purchasing slightly more concrete than the estimated result can reduce the probability of having insufficient concrete. This calculator is based on the guidelines of IS codes. The Concrete Calculator estimates the volume and weight of concrete necessary to cover a given area. If you want to determine the weight of aggregates just multiply the dry volume by the bulk density of aggregate. This calculator gives the dry volume of agggregates. It is assumed that dry volume of concrete = 1.54 times the wet volume of concrete. It is mainly used as a building material in the construction of a wall. Use our online block calculator to find the number of concrete blocks required for building an area. Desnsity of cement is taken as 1440 kg/m 3. Solution: Number of Concrete Blocks (5 x 7) / 16x 8. Input thickness, width and length to easily calculate concrete volume. Use this Excel free concrete calculator to quickly estimate how many bags, yards or cubic. The water to cement ratio is generally selected in the range of 0.4 to 0.6 depending on required workability. This free concrete calculator estimates the amount of concrete necessary for a project and can account for different shapes and quantities. Water is essential for producing concrete. For example M15 corresponds to a Mix for Concrete with characteristic compressive strength of 15 MPa (15 N/mm 2) and the mix proportion 1:2:4 concrete means 1 part of cement mixed with 2 parts of fine aggregate (sand) and 4 parts of coarse aggregat (stone pieces). You can get the dry amount of ingredients (cement, fine aggregate and coarse aggregate) of concrete as well as the amount of water needed to produce concrete of desired workability.
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