Materials

The applications of mine tailings to develop low cost UHPC

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Abstract

Nowadays, Ultra High Performance Concrete (UHPC) is being applied in various structural members with its great advantages over conventional cement based materials such as high strength, durability and impact resistance. However, UHPC has some disadvantages including high cost of the materials. In this study, different mine tailings were used in order to reduce material cost and develop eco-friendly UHPC. Four types of mine tailings with different particle sizes were used to substitute silica powder and silica sand. And the effects of the use of tailings on UHPC were evaluated using cost analysis, compressive strength and flowability. The effect of curing procedures, water and air curing, were also investigated. It is revealed from the investigations that different types of mine tailing can be incorporated into UHPC to achieve cost reduction.

Keywords: UHPC, flowability, compressive strength, mine tailings, cost reduction

How to Cite:

Kim, H., Tafesse, M. & Pyo, S., (2016) “The applications of mine tailings to develop low cost UHPC”, International Interactive Symposium on Ultra-High Performance Concrete 1(1). doi: https://doi.org/10.21838/uhpc.2016.92