Effects of Curing Systems on the Strength and Microstructure of Reactive Powder Concrete with Iron Tailing Sands

Abstract:

To produce 130MPa reactive powder concrete with iron tailing sands as aggregation in an economic hot curing system, the effects of curing temperature, curing time and curing conditions on the reactive powder concrete was studied, the reasons of the strength of reactive powder concrete in different curing systems has the difference from the submicroscopic structure point of view was analyzed. The results show that use 90°C hot water to cure reactive powder concrete for 48h can lead it’s 28 day compressive strength reaches 140MPa, the flexural strength reaches 28MPa.

• Periodical: Applied Mechanics and Materials (Volumes 548-549)
• Pages: 247-253
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.548-549.247
• Online since: April 2014
• Authors: Zhi Gang Zhu, Bei Xing Li*, Jin Cheng Liu, Xing Dong Lv
• Keywords: Curing Systems, Iron Tailing Sands, Microstructure, RPC, Strength

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