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《China Concrete and Cement Products》 2016-09
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Application of Ground Iron and Steel Slag in Steam Curing Concrete

SUN Jian-wei;CHEN Zhong-hui;  
The pure cement concrete is prepared by 30% and 40% ground iron and steel slag A(GGBS: steel slag ratio is 7:3), and concretes with 30% and 40% ground iron and steel slag B(GGBS ∶steel slag ratio is 6∶4) under the same water-to-binder ratio, the compressive strength, resistance to chloride ion penetration, anti-carbonation and anti-sulfate attack properties of steam-cured concretes were determined. The results show that, adding ground iron and steel slag can improve the late-age compressive strength of concrete, the compressive strength of concrete with ground iron and steel slag A is higher than that of the concrete with ground iron and steel slag B. The resistance to chloride ion penetration of concrete is improved by adding ground iron and steel slag at the age of 28 days. The resistance to chloride ion penetration of concrete is improved by adding 40% ground iron and steel slag A at the age of 90 days. The addition of ground iron and steel slag has little effects on the anti-carbonation properties of concretes, which can improve the anti-sulfate attack property of concrete with ground iron and steel slag.
【CateGory Index】: TU528
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