Question

If 20kg of coarse aggregate is sieved through 80mm, 40mm, 20mm, 10mm, 4.75mm, 2.36mm, 1.18mm, 600 standard sieves and the weights retained are 0kg, 2kg, 8kg, 6kg, 4kg respectively, the fineness modulus of aggregate is

Answer 1

Skip question . 43×78+56^34÷7=10^x+20^x+30^x.find x

Answer 2

The aggregate should be oven-dried at high temperature before sieving to prevent lump formation of the fine particles due to moisture content, which might clog the fine sieve holes.