作者: Pierre-Claude Aı̈tcin
DOI: 10.1016/S0008-8846(00)00365-3
关键词:
摘要: … of cement are used to produce 1 m 3 of concrete, in 1900 only 40 million m 3 of concrete were … This is a little more than 1 m 3 of concrete per person per year, or more than 2.5 tonnes of …