By comparing the carbonation depth of different clinker cement concrete and analyzing the phase composi-tion by thermal analysis method,the influence of different content of fly ash on carbonation depth of low calcium and high strength clinker cement concrete was studied.The results show that compared with ordinary Portland concrete,the carbonation rate of low-calcium high-strength clinker concrete is faster and the carbonation depth is larger.With the in-crease of fly ash content,the pH value of concrete after carbonation decreases and the carbonation depth increases.There will be Ca(OH)2 surplus in concrete section,and the carbonization depth measured by phenolphthalein method is larger than the actual carbonization depth.
关键词
低钙高强熟料/混凝土/粉煤灰/碳化深度
Key words
low calcium high strength clinker/concrete/fly ash/carbonization depth
维普
万方数据