| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for simply and accurately predicting a drying shrinkage strain of concrete.SOLUTION: There is provided a method for predicting a drying shrinkage strain of concrete for calculating a prediction value of the drying shrinkage strain of concrete containing coarse aggregate using the drying shrinkage strain and/or the Young's modulus of the coarse aggregate. In addition, there is also provided a method for predicting the drying shrinkage strain of concrete, etc. for calculating a prediction value of the drying shrinkage strain of concrete containing the coarse aggregate from the following formula (1) using the Young's modulus of the coarse aggregate. &egr;c=A×Eg+B...... (1) (in the formula, &egr;c shows the drying shrinkage strain (×10) of concrete in 26 weeks of a drying period, and Eg shows the Young's modulus (kN/mm) of the coarse aggregate. In addition, A is 14.0 when a rock type of the coarse aggregate is a sedimentary rock, is 5.3 when the rock type of the coarse aggregate is except the sedimentary rock, and B is -1700 when the rock type of the coarse aggregate is the sedimentary rock, and is -1035 when the rock type of the coarse aggregate is except the sedimentary rock.) |
