Hydration Heat Prediction of Calcium Silicate Slag Cement Composite Cementitious Material Based on ARIMA Model

Abstract

Abstract: Predicting the heat generated in the hydration process of calcium silicate slag cement composite cementitious material has practical significance for its application in concrete structures. In this paper, based on the basic theory of ARIMA model, the hydration heat prediction models of composite cementitious materials with 0%, 10% and 30% (mass fraction, the same below) calcium silicate slag were established. The accuracy and reliability of the model were verified by comparing with the text values. Based on the text values of composite cementitious materials with 0%, 10%, and 30% calcium silicate slag, the prediction models of hydration heat at different ages were established, and the prediction of hydration heat of composite cementitious materials with other calcium silicate slag content was carried out. The results show that the average relative errors between predicted values and test values are all less than 5% under the calcium silicate slag content of 0%, 10% and 30%, which indicates that the ARIMA model has high accuracy and reliability in predicting the hydration heat of composite cementitious materials. The prediction results of hydration heat of composite cementitious materials with other calcium silicate slag content are in line with the actual change trend, which further proves the feasibility of ARIMA model in the prediction of hydration heat. This provides an effective method for quantitative research and prediction of hydration heat of composite cementitious materials.

Key words: calcium silicate slag, composite cementitious material, hydration heat, ARIMA model, time series analysis

CLC Number:

TU525.9

YAN Changwang, SHEN Xiaowei, ZHANG Ju, WANG Xiaoxiao, YU Hongyuan. Hydration Heat Prediction of Calcium Silicate Slag Cement Composite Cementitious Material Based on ARIMA Model[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(12): 3985-3992.

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