Experimental Study on the Effect of Mineral Admixtures on the Performance of Anti-abrasion Concrete
In order to study the effect of mineral admixture on the performance of concrete,the concrete mixed with silicon powder,the concrete mixed with HF admixture and the concrete mixed with silicon powder and HF admixture are studied by the performance of concrete mixture,com-pressive strength,impact and abrasion resistance and shrinkage performance of the mixture.The performance difference of impact and wear resist-ant concrete under different combinations is analyzed.The results show that the mechanical properties and abrasion resistance of concrete can be improved by adding HF admixture or silicon powder.The performance improves with the increase of the content of silicon powder and HF admix-ture.The early shrinkage deformation of silicon powder concrete is large,and HF admixture has no obvious influence on the dry shrinkage deform-ation of concrete.The mechanical properties and abrasion resistance of concrete can be significantly improved by adding HF admixture and silicon powder,giving full play to the respective advantages of each admixture.The addition of HF admixture can improve the effect of silicon powder on the workability of concrete mixture,but it does not fully curb the disadvantage of large shrinkage deformation of silicon powder concrete.In the later stage,other means should be considered to reduce the shrinkage deformation of concrete and improve the crack resistance of concrete to ob-tain better application results.The study can provide reference for the application of silicon powder concrete,HF concrete,silicon powder and HF admixture in abrasion-resistant concrete for water conservancy and hydropower project.
国家科技期刊平台
NSTL
万方数据
维普
