Study on Corrosion Resistance of New Type of Magnesium Phosphate Cement

DOI

10.2991/iceep-17.2017.251How to use a DOI?

Keywords

Magnesium phosphate cement; silicate - magnesium phosphate cement; strength; acid and alkali salt corrosion

Abstract

Magnesium phosphate cement blended with Portland cement were cured in MgCl2, Na2SO4, NaCl, HCl and NaOH solutions, and the compressive, flexural strength and microstructure were approached and their corrosion resistance were studied. The results show that the corrosion resistance of magnesium phosphate cement (MPC) is good, but poor in the HCl solution and the worst in NaOH solution. In HCl and NaOH environment, the corrosion retention of the Portland cement modified phosphate cement mortar (PCMPC) was 80.2%, 74.8%, and 73.4% and 71.6% for the MPC respectively. In general, the corrosion resistance of the PCMPC was better than that of the MPC. SEM results show that the chemical solution environment will destroy the flocculation gel structure formed by the hydration of magnesium phosphate cement, leading to porous structure and lower density and thus deterioration of the corrosion resistance of magnesium phosphate cement mortar.

Copyright

© 2017, 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  - Jun Liu
AU  - Jinsong Ma
AU  - Chang Liu
PY  - 2017/06
DA  - 2017/06
TI  - Study on Corrosion Resistance of New Type of Magnesium Phosphate Cement
BT  - Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017)
PB  - Atlantis Press
SP  - 1417
EP  - 1421
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-17.2017.251
DO  - 10.2991/iceep-17.2017.251
ID  - Liu2017/06
ER  -