Experimental Study on Alkali Stimulating-Steel Slag Cementitious Materials

Abstract:

In order to utilize the waste steel slag effectively, three kinds of alkaline activator such as Na₂SO₄, Na₂SiO₃, Na₂CO­₃ were used to prepare steel slag cementitious material and measure its strength of 28 days and 60 days in the standard wet conditions. Microcosmic structure form of hydration products of cementitious material was analyzed by the test of SEM. The results indicate that: three activators on the strength of steel slag all have certain stimulation effect, and Na₂SO₄ has the apparent stimulation effect on the strength of steel slag, the analysis and test of SEM also shows that hydration products structure form of steel slag cementitious material added with Na₂SO₄ is much more than other two activators and is more helpful to improve steel slag strength.

• Periodical: Advanced Materials Research (Volumes 261-263)
• Pages: 551-554
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.261-263.551
• Online since: May 2011
• Authors: Gong Xun Wang, Kui Jun Xu, Ming Qiao Zhu
• Keywords: Cementitious Material, Steel Slag, Strength

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