Figure 1.
Initial crushing reduces 150 millimetre by 150 millimetre blocks using C T M and hammering. Sieving separates a 0 to 2 millimetre fraction, comprising 5 per cent by weight, from larger fractions. The larger fractions are 31.5 to 63 millimetres, 16 to 31.5 millimetres, 8 to 16 millimetres, and 2 to 8 millimetres, comprising 95 per cent by weight. These fractions undergo crushing with a smart crusher using Angle 1 and Angle 2. Further sieving generates 13 fractions. Three fractions continue for analysis. The 0 to 63 micrometre fraction contains 0.17 per cent for Angle 1 and 0.22 per cent for Angle 2. The 63 to 125 micrometre fraction contains 1.04 per cent for Angle 1 and 0.67 per cent for Angle 2. The 125 to 250 micrometre fraction contains 1.61 per cent for Angle 1 and 1.78 per cent for Angle 2. The final analyses are P S D, T G A, X R F, and X R D.Flowchart of the process carried with the CEM I 52.5 R and CEM III/B concrete blocks