Influence of charging mixing order on concrete performance

2nd International Workshop on Materials Science and Mechanical Engineering

机械制造;材料科学

Deng, X.M.^1^2 ; Yu, L.^3 ; Wang, X.G.^4

Department of Transportation Engineering, Changsha University of Science and Technology, No.960 Wan Jia li South Road T-x Dist. Section 2, Changsha City, Hunan Province, China^1

Guangxi Transportation Investment Group Co. LTD, Sanqi Square 4605, No.146, Nation Road, Qingxiu District, Nanning City, Guangxi Province, China^2

Research Institute of Highway Ministry of Transport, No.8 yard Xi tu cheng Road, Hai-dian District, Beijing, China^3

Beijing Xin-Qiao Technology Development Co. LTD, No.8 yard, Xi tu cheng Road, Hai-dian District, Beijing, China^4

关键词: Concrete performance;    Hydrophobic Material;    Internal curing;    Pore diameters;    Slump of concrete;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/504/1/012004/pdf
DOI  :  10.1088/1757-899X/504/1/012004

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

To know whether or not the concrete performance will be effected by the charging mixing order of three materials including the fine materials, the hydrophobic materials and the poriferous internal curing materials, three kinds of charging mixing order were designed. The slump of fresh mix concrete was tested. The compressive strength of harden concrete was tested. The pore structure was also detected. The test results show that charging mixing order can effect on the slump of concrete. While, it has no effect on compressive strength and pore size distribution. About the pore parameters, charging mixing order can effect on the average pore diameter and the critical pore diameter. It has no effect on the porosity of the concrete.