Research on the rapid method in concrete prisms for predicting the effectiveness of ASR inhibition
ZHAO Yang
GE Bing
SUN Jun
ZHANG Jianping
BIAN Xuejun
SUN Fei
Abstract：The modified power function regression model was used to analyze the effect of different mineral admixture contents on the expansion rate of two concrete mix proportions(15％,20％)that suppress alkali silica reaction(ASR).Combined with the ar-rhenius equation,a preliminary prediction model based on accelerated testing method was established to predict the final expansion rate of structural concrete within the specified service life in actual engineering.The research results show that the correlation coeffi-cient of the two sets of concrete matching ratio expansion rate models is greater than 0.990,which is suitable for the prediction of the expansion rate of concrete prisms,the concrete mix proportion using 20％ASR inhibition technology with dual fly ash and slag powder meets the design service requirement of 50 years,but does not meet the design service requirement of 100 years;The con-crete mix proportions using 15％ASR inhibition technology with both fly ash and slag powder did not meet the design requirements for 50 and 100 years.
Keywords：ASRrapid method in concrete prismsinhibition effectivenessarrhenius equation
Publication Date：2025-10-25
Online Publishing Date：2025-11-28(First online date of this platform, not the publication date of the document)
Pages：5( 70-74 )