Answer / prabhat kumar shahi

frist in the crush sand 100% passing threw 4.75 m.m. sieves
& retain 85%in 150 microns & this manufacture from crush by
rock.and grit powder passing threw 150 microns sieve 50%
generally now 50% to 60% use in mix-design. nest year used
100% VSI crush sand MIX-DESIGN we are produce.

Answer / sanjay u ojha

crush sand are made by rock in majority. however near the
source of river it is produce by sand pebbles. crush sand by
pebble are almost round in shape however of rock is angular.
sand using pebble can be used 100% for concrete and of rock
shall be @50 yo 70%. However due to ban in maharashtra by
environment dept, now a days 100% crush sand are used for
mix design.

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