| 摘要 |
PROBLEM TO BE SOLVED: To provide a testing apparatus, for the adiabatic temperature rise of concrete, in which a cause affecting the test accuracy of an adiabatic rise test is eliminated, in which a change with the passage of time in an adiabatic property is eliminated and by which a test assuming a concrete placing operation in a large volume so as to reveal the secondary peak of a temperature rise can be executed with good accuracy. SOLUTION: This testing apparatus for the adiabatic temperature rise of concrete is constituted in such a way that a sample container 12 which comprises a freely detachable lid 12b, in which a space used to house a concrete sample 11 so as to be freely taken in and out is installed and in which a heater 33 used to heat the outer face of the container including the lid 12b is installed integrally is provided, that a vacuum container 13 which houses the sample container 12 and which decompresses the space used to house the sample container 12 to a vacuum state so as to be maintained is provided, that a decompression device 2 which decompresses the vacuum container 13 to a prescribed vacuum is provided and that a temperature control device 3 which measures the central temperature and the peripheral temperature of the concrete sample inside the sample container 13 and which adjusts electric power to be supplied to the heater 33 on the basis of the measured temperatures is provided.
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