Open AccessStudy on the correlation of key indicators of P.O42.5 cement
Author(s) -
Zhonghua Su,
Lichang Fan,
Bo Liang,
Xiaodong Deng,
Xipeng Deng
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1635/1/012092
Subject(s) - cement , coagulation , correlation coefficient , correlation , positive correlation , negative correlation , index (typography) , compressive strength , loss on ignition , materials science , forensic engineering , chemistry , metallurgy , statistics , composite material , psychology , mathematics , environmental chemistry , engineering , medicine , computer science , geometry , psychiatry , world wide web
The development history and social contribution of cement were briefly described. The physical and chemical indexes of P.O42.5 cement were tested according to GB 175-2007 standard. The correlation of coagulation time, strength and chemical index was analyzed. The results showed that the final coagulation time was closely and positively correlated with the initial coagulation time, and the correlation coefficient was 0.9572. The 28-day compressive strength doesn’t have obvious correlation with final setting time, loss on ignition, MgO content and SO 3 content.