@ARTICLE{10.3389/fbuil.2021.640243, AUTHOR={Allan Nye, Scott and Vineet, Shah and Christopher, Oze and Barnaby, Shanks and Chris, Cheeseman}, TITLE={Use Of Olivine For The Production Of MgO-SiO2 Binders}, JOURNAL={Frontiers in Built Environment}, VOLUME={7}, YEAR={2021}, URL={https://www.frontiersin.org/articles/10.3389/fbuil.2021.640243}, DOI={10.3389/fbuil.2021.640243}, ISSN={2297-3362}, ABSTRACT={The potential for using MgO and SiO2, recovered from olivine, was investigated for use as a cementitious binder system. The MgO to SiO2 proportion for the binder was fixed at 1:1. The nature of the hydration products were characterized using a variety of techniques including isothermal calorimetry, XRD, FTIR, and SEM. The primary binding component of the paste was determined to be magnesium silicate hydrate (M-S-H). The recovered silica exhibited faster reactivity compared to commercially available silica fume. Compressive strengths in excess of 20 MPa were obtained using the materials recovered from olivine.} }