Study on the Mix Proportion Design of C30 Supersulphated Phosphogysum-Slag Cement (SSC) Concrete

Abstract:

supersulphated phosphogysum-slag cement (SSC) is a newly developed non-burned cementitious material. It’s mixed and ground with 40%-50% phosphogypsum, 40%-50% ground granulated blast-furnace slag (GGBFS), 2% steel slag and 4% portland cement clinker. But the component of SSC differs greatly from that of Portland cement, there is few application researches about the SSC. In order to realize resourceful utilization of phosphogypsum, the mix proportion design method of SSC are studied. The mix proportion design method for C30 are systematically studied and a design optimization was carried out. According to the design regulations of mix proportion of ordinary concrete and the characteristics of SSC, the C30 high flowing concrete is prepared, and the optimum water-cement ratio is obtained based on revised Bowromi formula. According to the mix proportion optimization design, the 28d strength of SSC is up to 38.5MPa.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 1950-1956
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.1950
• Online since: December 2014
• Authors: Sha Ding*, Guo Zhi Zhang, Fei Xiang Chen
• Keywords: Concrete, Mix Proportion Designmethod, Supersulphated Phosphogysum-Slag Cement

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