The over-development of motor transport, with its increase of more cars, more highways, more pollution, more suburbs, more commuting, has contributed to the near-destruction of our cities, the breakup of the family, and the pollution not only of local air but also of the earth’s...
Concerning the variation gradient problem of volume content, there are already a lot of reference literatures for it. During the trial mix, the author found that when the fibrillated polypropylene fiber content was added into the concrete increasing it by 0.13%, the workability of the fresh SCC ...