期刊
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
卷 33, 期 5, 页码 1159-1167出版社
WUHAN UNIV TECHNOLOGY
DOI: 10.1007/s11595-018-1948-z
关键词
MKPC; hydration properties; M/P; borax; process of hydration
资金
- National Natural Science Foundation of China [51472168]
- Natural Scientific Foundation of Liaoning Province [201602646]
- Open Fund from Liaoning Key Laboratory of Advanced Processing Technology for Metal Materials, Shenyang Ligong University
- Postdoctoral Research Foundation of Shenyang Ligong University
The effect of the borax content and magnesia to phosphate ratio (M/P) on the hydration properties of the magnesium potassium phosphate cement (MKPC) with large volume of fly ash was investigated, and a five-hydration-stage for MKPCs was proposed. The results show that MKPC sets rapidly with less than 8% of borax, which is unfavorable to the application of MKPC on construction. Adding more than 8% (including 8%) of borax results in a secondary hydration peak for MKPC, in which the process of hydration can be divided into five stages, namely, pre-induction period, induction period, acceleration period, deceleration period and stable period. M/P ratios could not change the multi-step reactive stages but higher M/P ratios could accelerate the hydration. Borax tends to impact the formation of Mg-containing hydrated products.
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