Although I have only done one set of experiments on sand, i do know when sand is full of silt it takes in moisture and therefor dampens the concrete, it also makes it weaker. read more
Ofcourse M sand is safe to use in construction but you should purchase from authorised quarry and it should be washed M sand you can check the M sand in site by simple steps. 1M SAND Quality check. 1.Take clean bottle. 2. Put approximately 1/3 M SAND inside the bottle. 3. Fill water and close the bottle. 4. Shake well vigorously. read more
Manufactured sand (M-Sand) is a substitute of river sand for concrete construction produced from hard granite stone by crushing. Advantages and properties Manufactured sand (M-Sand) is a substitute of river sand for concrete construction produced from hard granite stone by crushing. read more