Abstract
This paper discusses mineral composition and pore microstructure characteristics of water-cooled manganese slag and its effects on durability of concrete. The Mn slag has an alveolate pore structure, and the ground Mn slag is characterized by multiangular shape which consists of α′-C2S, C3MS2, CaO·MnO·2SiO2 and C2AS. Experimental results show that the Mn slag has potential hydraulic reactivity. Concrete made with Mn slag as supplementary cementitious materials (SCMs) exhibits very low strength loss and weight loss in the synthetic seawater corrosion and freezing-thawing cycle tests. The research provides useful reference for knowing about Mn slag and for applying Mn slag to improve the durability of concrete.
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Foundation item: the National Basic Research Program (973) of China (No. 2009CB326200), and the Guangxi Technology and Science Development Program (Nos. 11107024-4, 0842003-17 and 0842003-3A)
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Liu, Rj., Ding, Qj., Chen, P. et al. Durability of concrete made with manganese slag as supplementary cementitious materials. J. Shanghai Jiaotong Univ. (Sci.) 17, 345–349 (2012). https://doi.org/10.1007/s12204-012-1284-y
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DOI: https://doi.org/10.1007/s12204-012-1284-y