The increment of stone dust from 4.3 to 20% did not adversely affect the strength, and the abrasionloss of concretes was reduced.
随着机制砂中石粉含量从4.3%增加到20%,对混凝土强度无不利影响,磨损量逐步减小;
2
The results showed that the sample by adding the ultrafine powders of silica aerogel increased the tensile strength 54%, the elongation at break 64%, decreased the abrasionloss 20%.
There are scouring abrasion and impact wear two basic types. The microstructure of two kinds of metal loss in process of wear and tear is not exactly the same.