Influences of Mineral Admixture On the Comressive strength of Magnesium Oxysulphate Cement

DOI

10.2991/iceep-16.2016.155How to use a DOI?

Keywords

Magnesium oxysulphate cement;Mineral admixture; Compressive strength; Magnesium Oxide; Phase composition

Abstract

In this paper, influences of mineral admixtures (fly ash, slag and silica fume) on the compressive strength of magnesium oxysulphate cement have been studied. Results demonstrate that effects on compressive strength of magnesium oxysulphate cement by adding fly ash is related with the initial a-MgO/MgSO4 . The strength of cement increased by dosage of fly ash increases at low a-MgO/MgSO4 . The addition of fly ash can significantly reduce the strengths of cement with constant water-cement ratio(w/c). Although adding slag is disadvantageous to the early strength of magnesium oxysulphate cement , it has little influence on the later strength . The early strength of the magnesium oxysulphate cement decreases at first and then increases with the increasing dosage of silica fume, and the later strength increases obviously.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wenhai Chen
AU  - Chengyou Wu
AU  - Hongfa Yu
AU  - Shuhai Zheng
AU  - Fangyu Chen
AU  - Huimin Zuo
PY  - 2016/11
DA  - 2016/11
TI  - Influences of Mineral Admixture On the Comressive strength of Magnesium Oxysulphate Cement
BT  - Proceedings of the 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016)
PB  - Atlantis Press
SP  - 890
EP  - 894
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-16.2016.155
DO  - 10.2991/iceep-16.2016.155
ID  - Chen2016/11
ER  -