高强高性能混凝土的配制试验研究  

Study on test preparation and strength mechanism of high strength concrete

作　　者：张合春 Zhang Hechun(Shandong Changhengxin Engineering Consulting Co. , Ltd, Jining 272049, Chin)

机构地区：[1]山东长恒信工程咨询有限公司,山东济宁272049

出　　处：《山西建筑》2018年第19期108-110,共3页Shanxi Architecture

摘　　要：高强高性能混凝土材料是保证大型工程修建的前提和基础。以52.5硅酸盐水泥、硅粉、天然砂、鹅卵石及减水剂为原材料,进行高强混凝土的配制试验,并对各原材料掺量影响混凝土强度的影响规律进行分析。试验表明:随着硅粉掺量的增加,混凝土强度整体呈增加的趋势;随着鹅卵石掺量增加混凝土强度呈先增大后减小的趋势;随着减水剂掺量增加混凝土强度呈先增大后减小的趋势。高强混凝土的最佳配方为水灰比0.45、水泥掺量31%、硅粉掺量8%、天然砂掺量40%、鹅卵石掺量21%、减水剂掺量0.4%。High strength and high performance concrete material is the premise and foundation for large-scale engineering construction. 52. 5 #portland cement,clay,natural sand,cobblestone and water reducing agent are used as raw materials to make a preparation test of high strength concrete. The influence of the amount of raw materials on the strength of concrete is analyzed. The test shows that the strength of concrete increases with the increase of the content of silica powder; with the increase of cobblestone content,the strength of concrete increases first and then decreases,and the strength of concrete increases first and then decreases with the increase of the amount of water reducing agent. The best formula for high strength concrete is water-cement ratio 0. 45,cement content 31%,silicon powder content 8%,natural sand content 40%,cobblestone content 21%,water reducer content 0. 4%.

关 键 词：高强混凝土 试验配制 强度影响规律 

分 类 号：TU502[建筑科学—建筑技术科学]