Analysis of variance for testing method of cement in determination of strength  

作　　者：Hong HUANG Xiao-dong SHEN 

机构地区：[1]State Key Laboratory of Materials-Oriented Chemical Engineering, College of Material Science and Engineering, Nanjing University of Technology, Nanjing 210009, China

出　　处：《Progress in Natural Science:Materials International》2011年第4期341-346,共6页自然科学进展·国际材料（英文版）

基　　金：Project(2009CB623100) supported by the National Basic Research Program of China;Project supported by the Graduates Research & Innovation Program of Jiangsu Province,China

摘　　要：The statistical tools such as descriptive statistics,full factorial design and analysis of source of variation were used to identify the potential factors that impact the validity of testing method for determining the strength of cement.The results showed that personal error impacted both accuracy and precision of test greatly.Experimental time associated with temperature fluctuation resulted in strength variation but did not impact the precision of test in all curing ages.Different compactions did not impact the precision of test but resulted in the strength variation on 3 d and 28 d significantly.Different methods for the initial moist air curing significantly impacted the precision of testing method and resulted in the strength variation of cement on 1 d.The statistical tools such as descriptive statistics,full factorial design and analysis of source of variation were used to identify the potential factors that impact the validity of testing method for determining the strength of cement.The results showed that personal error impacted both accuracy and precision of test greatly.Experimental time associated with temperature fluctuation resulted in strength variation but did not impact the precision of test in all curing ages.Different compactions did not impact the precision of test but resulted in the strength variation on 3 d and 28 d significantly.Different methods for the initial moist air curing significantly impacted the precision of testing method and resulted in the strength variation of cement on 1 d.

关 键 词：TESTING method of CEMENT analysis of variance STRENGTH ACCURACY PRECISION 

分 类 号：TU528[建筑科学—建筑技术科学]