Resistance to acid attack, abrasion and leaching behavior of alkali-activated mine waste binders

摘要

This paper report results of a research project on the development of alkali-activated binders using mine wastes. Abrasion and acid resistance of two ordinary Portland cement (OPC) strength class concrete mixtures (C20/25 and C30/37) and several mine waste (MW) mixtures were compared. This study indicates that MW binders possess higher acid and abrasion resistance than OPC based concrete mixtures. The leaching assessment of the MW binders shows it can be considered an inert material which indicates that it could be used as a building material.