4 ms·
For anyone else that's curious, cement is mixed with water and some sort of aggregate to make concrete.
by LeonRobrotsky 12y ago
For anyone else that's curious, cement is mixed with water and some sort of aggregate to make concrete.
- spikels 12y agoDon'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-could-lead-to-skyscraper-collapses/ 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)
- jacquesm 12y agoYes, you want coarsely crushed ('sharp') sand, not sand that has better decorative qualities.