Influence of m(P)/m(M) mass ratio on properties of magnesium phosphate cement and its mechanism analysis

被引：0

作者：

Xue, Ming ^{[1
]}

Wang, Hongtao ^{[2
]}

Xiao, Xiao ^{[1
]}

Cao, Juhui ^{[3
]}

机构：

[1] Department of Military Architecture and Environmental Engineering, LEU, Chongqing

[2] Department of Chemistry & Material Engineering, LEU, Chongqing

[3] Department of Military Engineering Management, LEU, Chongqing

来源：

Gongneng Cailiao/Journal of Functional Materials | 2015年 / 46卷 / 23期

关键词：

Magnesium phosphate cement(MPC); Mass ratio of ammonium dihydrogen phosphate to magnesium oxide(m(P)/m(M)); Mechanism; Performance;

D O I：

10.3969/j.issn.1001-9731.2015.23.019

中图分类号：

学科分类号：

摘要：

This paper researched the influence of mass ratio of ammonium dihydrogen phosphate(P) to magnesium oxide(M) on the compressive strength and setting time of magnesium phosphate cement(MPC). The influence mechanism of the m(P)/m(M), which could help to provide theoretical basis for improving the performance of the MPC, was analyzed by X-ray diffraction(XRD), scanning electron microscope(SEM) and election diffraction spectrometer(EDS). The results show: the MPC material system was composed of a large number of un-reacted MgO particles cemented by hydration products. MgO style was essential to the hydration reaction rate and the development of the MPC's strength; hydration products of the MPC were mainly magnesium ammonium phosphate and magnesium phosphate compounds, its composition and the crystal morphology structure was affected by m(P)/m(M) mass ratio greatly. When m(P)/m(M) ratio was 1/4-1/5, the structure of the hydration products was dense, and the strength of the MPC was higher. © 2015, Chongqing Functional Materials Periodical Press Co. Ltd. All right reserved.

引用

页码：23090 / 23095

页数：5

共 33 条

[21]

Lai Z., Qian J., Lu Z., Et al., Effects of raw materials and compositions to the properties of magnesium phosphate cement, Journal of Wuhan University of Technology, 33, 10, pp. 16-20, (2011)

[22]

Wang A., Yuan Z., Zhang J., Et al., Effect of raw material ratios on the compressive strength of magnesium potassium phosphate chemically bonded ceramics, Materials Science and Engineering, 33, pp. 5058-5063, (2013)

[23]

Li P., Du L., Li D., The preparation and study on the new high early strength magnesium phosphate cement, Bulletin of the Chinese Ceramic Society, 27, 1, (2008)

[24]

Jiang H., Zhang L., Researches of magnesium phosphate cement, Journal of Wuhan University of Technology, 23, 4, (2001)

[25]

Abdelrazig B.E.I., Sharp J.H., Jazairi B.E., The microstructure and mechanical properties of mortars made from magnesia-phosphate cement, Cement and Concrete Research, 19, 2, (1989)

[26]

Soudee E., Pera J., Influence of magnesia surface on the setting time of magnesia-phosphate cement, Cement and Concrete Research, 32, 1, (2002)

[27]

Dang Q., Zhao L., Zhou D., Et al., Analysis of microstructure of phosphate cement, Journal of Daqing Petroleum Institute, 20, 1, pp. 115-118, (1996)

[28]

Jiang H., Zhou H., Yang H., Investigation of the hydrating and hardening mechanisms of phosphate cement for repair with super rapid hardening, Journal of Wuhan University of Technology, 24, 4, pp. 18-20, (2002)

[29]

Hou L., Li J., Wang H., Mechanical property and hydration mechanism of slag bended magnesium phosphate cement, Acta Petrologica et Mineralogica, 30, 4, pp. 721-726, (2011)

[30]

Li Z., Zhang J., Jiang Y., Research on the performance of phosphate for rapid repairing, China Concrete and Cement Products, 8, pp. 7-10, (2011)

← 1 2 3 4 →