In this paper. a lije-cycle assessment methodology is used to evaluate the environmental cffects of cement-concrete system. The production factors notably affecting environment are obtained and the way in proving envi...In this paper. a lije-cycle assessment methodology is used to evaluate the environmental cffects of cement-concrete system. The production factors notably affecting environment are obtained and the way in proving environmental effects is indicated.展开更多
Electrical emission (EM) signals, which are generated from the concrete specimens under three-point bending tests, were conducted. It is shown that electrical emission phenomena are related to cracking of the specimen...Electrical emission (EM) signals, which are generated from the concrete specimens under three-point bending tests, were conducted. It is shown that electrical emission phenomena are related to cracking of the specimens, cohesive failure, contact-separation etc. The simultaneous appearance of electric emission signals and visible cracks during the flexure loading of beams was also observed.展开更多
基金Funded by the Committee of Natural Science Fund of Hubei Province
文摘In this paper. a lije-cycle assessment methodology is used to evaluate the environmental cffects of cement-concrete system. The production factors notably affecting environment are obtained and the way in proving environmental effects is indicated.
文摘Electrical emission (EM) signals, which are generated from the concrete specimens under three-point bending tests, were conducted. It is shown that electrical emission phenomena are related to cracking of the specimens, cohesive failure, contact-separation etc. The simultaneous appearance of electric emission signals and visible cracks during the flexure loading of beams was also observed.
