### Estimation of Cement Sand and Gravel in Construction

FULLER S RULE states mixing of a total of 42 volumes of cement sand and gravel will produce a 27 volumes of concrete The unit for this one is in cubic foot Conversion of 1 0 meter 3 281 ft hence 42 27cu ft x 3 281ft m 3 54 94 or rounded off to a good number of 55 That is how the constant of 55 comes from Hope it helps Tumugon Burahin