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PREDICTION METHOD FOR DRY-SHRINKAGE STRAIN OF CONCRETE
To provide a method capable of easily and accurately predicting a value of dry-shrinkage strain or the like of concrete containing a dry-shrinkage reducing agent and/or an expansive admixture in a drying period of 182 days, for a short period.SOLUTION: A prediction method for dry-shrinkage strain of concrete is the method of predicting dry-shrinkage strain by calculating a prediction value (ε) of the dry-shrinkage strain in a drying period of 182 days of the concrete with a prediction expression of ε=0.9×α×β×ε, using dry-shrinkage strain εof concrete containing a dry-shrinkage reducing agent and/or an expansive admixture measured with a dry-shrinkage strain measuring apparatus in a drying period of 7 days, 14 days, or 28 days (where, in the expression, αrepresenting a constant for drying period of 7 days, 14 days, or 28 days, βrepresenting an involution function (β=a×t) having a variable with the drying period t containing a and b as coefficients, and t representing the drying period of 7 days, 14 days, or 28 days).SELECTED DRAWING: Figure 8
【課題】乾燥収縮低減剤および／または膨張材を含むコンクリートの、乾燥期間１８２日における乾燥収縮ひずみ等の値を、短期間で簡易に精度よく予測できる方法を提供する。【解決手段】乾燥収縮ひずみ測定装置を用いて測定した、乾燥収縮低減剤および／または膨張材を含むコンクリートの乾燥期間７日、１４日、または２８日における乾燥収縮ひずみεｔを用いて、予測式、ε１８２＝０．９×αｔ×βｔ×εｔにより、該コンクリートの乾燥期間１８２日における乾燥収縮ひずみの予測値（ε１８２）を算出して乾燥収縮ひずみを予測する、コンクリートの乾燥収縮ひずみの予測方法。（ただし、式中、αｔは乾燥期間７日、１４日、または２８日の定数を表し、βｔはａおよびｂを係数として含む乾燥期間ｔを変数とする累乗関数（βｔ＝ａ×ｔｂ）を表し、ｔは乾燥期間７日、１４日、または２８日を表す。）【選択図】図８
PREDICTION METHOD FOR DRY-SHRINKAGE STRAIN OF CONCRETE
To provide a method capable of easily and accurately predicting a value of dry-shrinkage strain or the like of concrete containing a dry-shrinkage reducing agent and/or an expansive admixture in a drying period of 182 days, for a short period.SOLUTION: A prediction method for dry-shrinkage strain of concrete is the method of predicting dry-shrinkage strain by calculating a prediction value (ε) of the dry-shrinkage strain in a drying period of 182 days of the concrete with a prediction expression of ε=0.9×α×β×ε, using dry-shrinkage strain εof concrete containing a dry-shrinkage reducing agent and/or an expansive admixture measured with a dry-shrinkage strain measuring apparatus in a drying period of 7 days, 14 days, or 28 days (where, in the expression, αrepresenting a constant for drying period of 7 days, 14 days, or 28 days, βrepresenting an involution function (β=a×t) having a variable with the drying period t containing a and b as coefficients, and t representing the drying period of 7 days, 14 days, or 28 days).SELECTED DRAWING: Figure 8
【課題】乾燥収縮低減剤および／または膨張材を含むコンクリートの、乾燥期間１８２日における乾燥収縮ひずみ等の値を、短期間で簡易に精度よく予測できる方法を提供する。【解決手段】乾燥収縮ひずみ測定装置を用いて測定した、乾燥収縮低減剤および／または膨張材を含むコンクリートの乾燥期間７日、１４日、または２８日における乾燥収縮ひずみεｔを用いて、予測式、ε１８２＝０．９×αｔ×βｔ×εｔにより、該コンクリートの乾燥期間１８２日における乾燥収縮ひずみの予測値（ε１８２）を算出して乾燥収縮ひずみを予測する、コンクリートの乾燥収縮ひずみの予測方法。（ただし、式中、αｔは乾燥期間７日、１４日、または２８日の定数を表し、βｔはａおよびｂを係数として含む乾燥期間ｔを変数とする累乗関数（βｔ＝ａ×ｔｂ）を表し、ｔは乾燥期間７日、１４日、または２８日を表す。）【選択図】図８
PREDICTION METHOD FOR DRY-SHRINKAGE STRAIN OF CONCRETE
コンクリートの乾燥収縮ひずみの予測方法
ONO TAKUYA (author) / MITANI YUJI (author)
2020-01-09
Patent
Electronic Resource
Japanese
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