Influencing Factors of Setting Time about Magnesium Phosphate Cement

Because the setting time of magnesium phosphate cement (MPC) was too quick, its further application was restricted. Influence factors about magnesium phosphate cement setting time are summarized and the influence laws are studied in the paper. The results show that with the increase of phosphorus to...

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Bibliographic Details
Published inKey Engineering Materials Vol. 727; pp. 1035 - 1040
Main Authors Zhu, Ye Ran, Wen, Jin Bao, Huang, Guo Hong, Tang, Xiu Sheng
Format Journal Article
LanguageEnglish
Published Trans Tech Publications Ltd 2017
Subjects
Binders
Boron
Cements
Fly ash
Magnesium
Magnesium phosphate
Optimization
Specific surface
Dead Burned Magnesia
Magnesium Phosphate Cement
Setting Time
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Summary:Because the setting time of magnesium phosphate cement (MPC) was too quick, its further application was restricted. Influence factors about magnesium phosphate cement setting time are summarized and the influence laws are studied in the paper. The results show that with the increase of phosphorus to magnesium ratio (P/Mg) or boron to magnesium ratio (B/Mg), the setting time is both obviously prolonged. The effect of water to binder ratio (W/C) on the setting time of MPC has an optimal point. As the specific surface area increases gradually, the setting time of MPC is greatly shortened. Although fly ash has effect on setting time of MPC, the effect is very small. At the same time, the setting time is closely related with environmental temperature, the pH value of the system and mixing volume.
Bibliography:Selected, peer reviewed papers from the 2016 China Functional Material Technology and Industry Forum, July, 25-28, 2016, Chongqing, China
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISBN:303571052X
9783035710526
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.727.1035