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A comment on China used more cement in 3 years than the U.S. did in the entire 20th Century. Parent comment

Re:China used more cement in 3 years than the U.S. did in th... by spikels on Tuesday March 24, 2015 @03:17PM (#9258784)
Don't forget the sand, which is technically an aggregate[1]. Using the wrong sand is a classic mistake being rediscovered in China:

http://www.wired.com/2013/03/poor-quality-chinese-concrete-c...

[1]-The concrete recipes I remember always had sand and rocks, gravel and/or pebbles (depending on local availability)

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Re:China used more cement in 3 years than the U.S. did in th... by jacquesm on Tuesday March 24, 2015 @03:53PM (#9259002)
Yes, you want coarsely crushed ('sharp') sand, not sand that has better decorative qualities.
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