东南大学学报（英文版）2017，Vol.33Issue(3)：277-285,9.DOI:10.3969/j.issn.1003-7985.2017.03.005
钢渣在蒸养混凝土中应用的实验研究
Experimental studies on the utilization of steel slag in the steam-cured concrete
摘要
Abstract
The possibility of applying steel slag as mineral admixture in steam-cured concrete was investigated. The compressive strength, chloride permeability, carbonation depth and drying shrinkage of concrete and the microstructure characteristics of hardened paste were studied. Results show that the steam-cured concrete containing steel slag at a high water-to-binder ratio has low compressive strength, coarse pore structure, moderate permeability, large carbonation depth and great drying shrinkage. The negative effects of steel slag on the mechanical and durability performance of steam-cured concrete become smaller at a low water-to-binder ratio or by adding ultrafine ground granulated blast furnace slag (UGGBS). The later-age hydration of cement is significantly promoted by adding steel slag. The pozzolanic reaction and micro-filler effect of UGGBS result in dense structure, which makes great contribution to the strength development and durability performance of steam-cured concrete. These effects of steel slag and UGGBS are significant at a low water to binder ratio. The steam-cured concrete containing steel slag-UGGBS blended mineral admixture at a low water-to-binder ratio has the best performance with high compressive strength, fine pore structure and good durability.关键词
蒸养/钢渣/抗压强度/水化/耐久性Key words
steam curing/steel slag/compressive strength/hydration/durability分类
化学化工引用本文复制引用
韩方晖,刘娟红,何薛江,宋少民..钢渣在蒸养混凝土中应用的实验研究[J].东南大学学报（英文版）,2017,33(3):277-285,9.基金项目
Postdoctoral Science Foundation of China (No. 2015M580992, 2016T90036), the Open Fund of State Key Laboratory of High Performance Civil Engineering Materials(No.2015CEM010). （No. 2015M580992, 2016T90036）
