METHOD FOR PREDICTING STRENGTH OF ARTIFICIAL LIGHTWEIGHT AGGREGATE

To provide a method allowing for easy and quick prediction of strength of artificial lightweight aggregate using a small amount of sample, the artificial lightweight aggregate being formed by firing raw material for producing the artificial lightweight aggregate including coal ash.SOLUTION: The method for predicting strength of artificial lightweight aggregate formed by firing raw material for producing the artificial lightweight aggregated including coal ash is provided. This method includes; a prediction formula creation step in which the strength of the artificial lightweight aggregate is used as a dependent variable, the absolute dry density and water absorption rate of the artificial lightweight aggregate is used as an independent value and then, the multiple regression analysis is performed to create the prediction formula of the strength of the artificial lightweight aggregate; and a prediction step of obtaining a prediction value of the strength of the artificial lightweight aggregate using the measured values of the absolute dry density and water absorption rate of the artificial lightweight aggregate, and the obtained prediction formula.SELECTED DRAWING: Figure 1 【課題】少量の試料を用いて、石炭灰を含む人工軽量骨材製造用原料を焼成してなる人工軽量骨材の強度を、簡易にかつ迅速に予測することができる方法を提供する。【解決手段】石炭灰を含む人工軽量骨材製造用原料を焼成してなる人工軽量骨材の強度予測方法であって、人工軽量骨材の強度を従属変数とし、人工軽量骨材の絶乾密度および吸水率を独立変数として、重回帰分析を行って、人工軽量骨材の強度の予測式を作成する予測式作成工程と、人工軽量骨材の絶乾密度および吸水率の実測値と得られた予測式を用いて、人工軽量骨材の強度の予測値を得る予測工程を含む人工軽量骨材の強度予測方法。【選択図】図１