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七十年代初,一些国家如美国、加拿大等利用粉煤灰生产高强混凝土,并用于建筑工程中。美国纽约五十层Porkave办公大厦是用65MPa高强粉煤灰混凝土建造的;TRump-Tower 68层大楼的梁、柱采用68MPa用高强粉煤灰混凝土;西雅图的
In the early 1970s, some countries such as the United States and Canada used fly ash to produce high-strength concrete and used it in construction projects. The 50-story Porkave office building in New York City is built with 65 MPa high-strength fly ash concrete; the 68-story building of the TRump-Tower building uses 68 MPa high-strength fly ash concrete; Seattle’s