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Abstract
This paper presents a manufacturing process to make an imitative RPC material. The blend was regularly composed of cement, silica fume, and certain content of rubber powder. The granular size distribution of dry blend was optimized to reduce the porosity of set material and the imitative RPC material was characterized by high silica fume content and with very low water to binder ratio. Furthermore, fine crushed aggregate and local natural medium crude sand were used to form mineral skeleton. Properties of various reference concrete series were investigated by conducting multiple tests, including permeability and mechanical strength test, the salt solution absorption test, the accelerated sulphate attack test, etc. The results show that the imitative RPC is an environmental-friendly civil engineering material which owns favorable mechanical strength, high impermeability and qualified excellent durability in sulphate contained environment.
Acknowledgments
Funding for the project was obtained from the Key Technology Research and Development of Railways Ministry project (item serial number: 2008 G 025-C). The skill and cooperation of each of these units and individuals were appreciated by the authors.
Notes
Peer review under responsibility of The Ceramic Society of Japan and the Korean Ceramic Society.