gravel sand and cement calculation

gravel sand and cement calculation

Paving mix - 1:3 cement:all-in ballast or 1:1 :2 cement:sharp sand:gravel. Comment: If you are wondering how 1:2 :3 equals 1:5 ( shouldn't it be 1:6 I hear someone say), the answer is that there is a lot of space between the individual pieces of gravel which will accommodate some sand, and when 2 parts sand is mixed with 3 parts gravel, the final volume will reduce down to about 5 parts.

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