| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for estimating mortar compression strength at an arbitrary material age by using a small quantity of cement, and an estimation device for the mortar compression strength.SOLUTION: A method for estimating mortar compression strength at an arbitrary material age includes: a first step of measuring a heat quantity generated by hydration reaction of cement paste sealed in a dedicated container immediately after production by a calorimeter, and estimating the mortar compression strength at an arbitrary material age during a measurement period by the calorimeter on the basis of the measured calorific value; and a second step of measuring an ultrasonic propagation velocity of the cement paste in the dedicated container to obtain a dynamic modulus of elasticity of the cement paste, after the cement paste in the dedicated container is cured and reaches a prescribed material age, and estimating the mortar compression strength at the arbitrary material age after reaching the prescribed material age on the basis of the obtained dynamic modulus of elasticity.</p> |
