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Estimating Concrete Slab by the Area Method |
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Saturday, 12 April 2008 07:58 |
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Estimating concrete slab by the area method is much easier than the volume method. However, this could be done easily with the aid of Table 1-3 which readily offer the quantity of cement, sand and gravel per square meter depending upon the required thickness of the slab.
Quantity of cement, sand, and gravel for slab and walls per square meter | Thick cm. | Mixture Class A (40 kg. Cement) | Mixture Class B 40 kg. Cement) | Mixture Class C 40 kg. Cement) | Mixture Class A (50 kg. Cement) | Mixture Class B (50 kg. Cement) | Mixture Class C (50 kg. Cement) | Sand (cu. m.) | Gravel (cu. m.) | | 5.0 | .450 | .375 | .300 | .350 | .300 | .250 | .0250 | .050 | | 7.5 | .675 | .563 | .450 | .525 | .450 | .375 | .0375 | .075 | | 10.0 | .900 | .750 | .600 | .700 | .600 | .500 | .0500 | .100 | | 12.5 | 1.125 | .938 | .750 | .875 | .750 | .625 | .0630 | .125 | | 15.0 | 1.350 | 1.125 | .900 | 1.050 | .900 | .750 | .0750 | .150 | | 17.5 | 1.575 | 1.313 | 1.050 | 1.225 | 1.050 | .875 | .0880 | .175 | | 20.0 | 1.800 | 1.500 | 1.200 | 1.400 | 1.200 | 1.00 | .1000 | .200 | | 22.5 | 2.030 | 1.688 | 1.350 | 1.575 | 1.350 | 1.125 | .1125 | .225 | | 25.0 | 2.250 | 1.875 | 1.500 | 1.750 | 1.500 | 1.250 | .1250 | .250 | | 27.5 | 2.475 | 2.063 | 1.650 | 1.925 | 1.650 | 1.375 | .1380 | .275 | | 30.0 | 2.700 | 2.250 | 1.800 | 2.100 | 1.800 | 1.500 | .1500 | .300 |
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