Crushed Granite Powder Usage In Botswana

16.63% from sand to stone powder (14.04 to 16.84 Mpa). The highest value of compressive strength of concrete is tasted for stone powder is 21.16 Mpa for 28 days whereas concrete made by sand shows a value of 18.95 which is 10.44% smaller than the value of stone powder. Figure 8 shows that the compressive strength of normal