Effect of content of silica fume on strength and planting performance of porous concrete
The effects of content of silica fume(0,6％,16％,26％,36％,46％)on the compressive strength,porosity,the pH value of the pore solution and planting performance of porous concrete were investigated,and microscopic analysis was carried out.The results show that,with the increase of the content of silica fume,the 28 d and 56 d compressive strengths of porous concrete basically show the trend of first increasing then decreasing and further increasing,the porosity and the pH value of the pore solution of porous concrete all show the trend of decreasing.Appropriate content of silica fume increases the height of plants and the water content of leaves at 15 d and 30 d.Appropriate content of silica fume can improve the hydration degree of the system and matrix compactness,while excessive silica fume may decrease the compactness of the matrix.
万方数据
维普
