Find the weight (in kg) of cement, water, flyash, fine andcoarse aggregate to produce a cement/flyash mix for a column, usingthe British Method that has a characteristic 28-day compressivestrength of 60 MPa. One hundred laboratory test results on thecontrolling mix show a standard deviation of 6.0 MPa (k=1.65). Theexposure classification for durability purposes is A1 and theconditions require a fly ash/ high early strength cement blend(with a 40% proportion of fly ash). The specific gravity of thecrushed coarse 20 mm aggregate to be used is 2850 kg/m3 and its dryrodded density is 1600 kg/m3. The specific gravity of fineaggregate is 2750 kg/m3 and its fineness modulus is 2.7. Assume thehigh early strength cement density is 3150 kg/m3 and fly ashdensity to be 2500 kg/m3
