Study on the Reactivity Activation of Steel Slag through Autoclaving Curing


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Feasibility study of partially replacement of cement and ground sand by ground steel slag (GSS) and ground granulated blast furnace slag (GGBFS) in producing prestressed high strength concrete pile (PHC) was conducted. The results showed that under normal curing(20oC, 95% RH)and the steam curing condition (80oC), GSS possessed less reactivity than GGBFS. However, under autoclave curing condition (180 °C, 1.0MPa), the reactivity of GSS can be effectively activated. The autoclaving strength of the concrete made from 20% GSS with Blaine 550m2/kg, 55% cement and 25% ground sand could reach 89.0 MPa which is not only higher than that of GGBFS (82.8MPa), but also higher than that of traditional PHC concrete (83.9Mpa, 70% cement and 30% ground sand). It’s feasible to produce PHC concrete by GSS with high fineness and optimized dosage.



Key Engineering Materials (Volumes 334-335)

Edited by:

J.K. Kim, D.Z. Wo, L.M. Zhou, H.T. Huang, K.T. Lau and M. Wang




Y. Q. Lin et al., "Study on the Reactivity Activation of Steel Slag through Autoclaving Curing", Key Engineering Materials, Vols. 334-335, pp. 525-528, 2007

Online since:

March 2007




[1] Zhang Lei, Wang Fei and Chen Xia. The present status and perspectives of steel slag development and usage. Iron & Steel Scrap of China, 1(2006), p.1.

[2] Lu Lei, Wen Jinbao and Yao Qiang. Study on Mechano-chemical Effect for Steel slag. Iron Steel Vanadium Titanium, 2(2005), p.3.

[3] XU Yuan-hui, LU Wen-xiong, WANG Xiu-juan, etl. Research and Development in Activation of Steel slag Activity. Journal of Shanghai University(Natural Science Edition) , 1(2004), p.2.

[4] Chen Zhifan, Jiang Yuanhai. The production and application of Prestresseded High Strength Concrete Tubular Piles. Building Technique Development, 3(1997), p.20.

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