bids are invited for m sand confirming to is 383-2016 (specification for coarse and fine aggregates free from adherent coating, hard, durable, clean and shall not contain clay and impurities such iron pyrites, alkalies, salt, coal, mica, shale or similar laminates or other materials exceeding the specified limits in is code aggregate for concrete aggregate 20mm. stone aggregate to be crushed rock or gravel 20mm graded confirming to relevant is and shall consist or angular fragments and shall be clean, hard, tough, durable and of uniform quality through out.stone aggregate 20 mm conforming to relevant is. aggregate 40mm. stone aggregate to be crushed rock or gravel 40mm graded confirming to relevant is and shall consist or angular fragments and shall be clean, hard, tough, durable and of uniform quality through out. ms binding wire 0.9mm rapidite quick setting liquid total quantity : 1493