River sand M sand Shape is round & smooth Shape is cubical, angular & rough texture Less cement paste is reqd to make concrete Required more water & cement Sand has high cost but using it makes work economical Sand is cheaper but using it will make it increased cost Contains less microfine particles Contains more microfine particles Doesn't affect any property, best choice Affects strength & workability of cocrete Moisture content present Less or no moisture content Strength is less High comp strength & flexural strength but should be well graded. Slit & over-sized materials& marine products present should be removed by washing & screening. No slit & over-sized materials & marine products Used for RCC, plastering & Brick or block laying work Diff grades is used for diff works.
Raul Jimenez
Senior Project Manager