Experimental study on performance of imitative RPC for sulphate leaching

• Main Authors: Xu-guang Tang, You-jun Xie, Guang-cheng Long
• Format: Article
• Language: English
• Published: Taylor & Francis Group 2016-03-01
• Series: Journal of Asian Ceramic Societies
• Subjects: Imitative RPC material; Tunnel lining concrete; Properties to sulphate sodium solution leaching; Environment-friendly material
• Online Access: http://www.sciencedirect.com/science/article/pii/S2187076416000026

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.