mix grout using small aggregate 7 mmwas employed for filling the cavities within the test walls and a common commercially used expansive chemical additive was added to the grout to avoid formation of voids caused by high shrinkage of the grout.
正在翻譯中..
![](//zhcntimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)