E3S Web Conf.
Volume 372, 20232023 4th International Conference on Urban Engineering and Management Science (ICUEMS2023)
|Number of page(s)||5|
|Section||Urban Traffic Management and Logistics Service|
|Published online||06 March 2023|
Study on flexural resistance and hydration mechanism of magnesium phosphate cement
School of Transportation and Geomatics Engineering, Shenyang Jianzhu University
Based on a large number of research data at home and abroad, this paper designed an experiment to complete the research on the mechanical properties and durability of magnesium phosphate cement by the ratio of magnesium phosphorus, fly ash content and pH value. On this basis, the effects of curing methods and different concentrations of hydrochloric acid on hydration products of magnesium phosphate cement were studied, and the mechanism of action was analyzed. Finally, when the M/P ratio was 4, with the increase of curing time, the strength of MPC increases gradually. When M/P is greater than 4, the flexural strength of MPC all shows a certain degree of shrinkage. In addition, fly ash can reduce the shrinkage of magnesium phosphate cement-based materials; The content of K-type struvite (KMgPO4ꞏ6H2O) in MPC can be increased under acid curing (pH=2) and water curing conditions.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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