|Table of Contents|

[1] Han Fanghui, Liu Juanhong, He Xuejiang, Song Shaomin, et al. Experimental studies on the utilization of steel slagin the steam-cured concrete [J]. Journal of Southeast University (English Edition), 2017, 33 (3): 277-285. [doi:10.3969/j.issn.1003-7985.2017.03.005]

Experimental studies on the utilization of steel slagin the steam-cured concrete()

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

2017 3
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Experimental studies on the utilization of steel slagin the steam-cured concrete
Han Fanghui1 Liu Juanhong1 He Xuejiang1 Song Shaomin2
1School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
2School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 102616, China
steam curing steel slag compressive strength hydration durability
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.


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Biography: Han Fanghui(1988—), female, doctor, lecturer, hanyang-1120@163.com.
Foundation items: Postdoctoral Science Foundation of China(No.2015M580992, 2016T90036), the Open Fund of State Key Laboratory of High Performance Civil Engineering Materials(No.2015CEM010).
Citation: Han Fanghui, Liu Juanhong, He Xuejiang, et al. Experimental studies on the utilization of steel slag in the steam-cured concrete[J].Journal of Southeast University(English Edition), 2017, 33(3):277-285.DOI:10.3969/j.issn.1003-7985.2017.03.005.
Last Update: 2017-09-20