Birla M Sand

A mix of m-80 grade suitable for pumped concrete is to be designed with the following materials and detail.1.Opc 53 grade, 7-day strength 52.5 n/mm2, spgr 3.15 2.Silica fume specific gravity 2.20 3.Standard deviation for the mix 5.0 n/mm2 4.Grading and.