Method for testing linear expansion coefficient of cement concrete under temperature and humidity coupling action
A technology of cement concrete and linear expansion coefficient, applied in the direction of material thermal expansion coefficient, etc., can solve the problem of damage to engineers and technicians, expansion coefficient has not been clarified and verified, and the accuracy and reliability of reinforcement calculation and joint spacing design results cannot be guaranteed. and other problems, to achieve the effect of easy implementation, accurate data and simple operation
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[0037] The method for testing the coefficient of linear expansion of cement concrete under the coupling effect of temperature and humidity of the present invention is to install the vibrating wire concrete strain gauge in the center of the measuring cylinder, inject road concrete into the measuring cylinder, and then install the cylinder in the cement concrete surface layer 1 / 2 thickness, the linear expansion coefficient of the pavement concrete under the coupling effect of temperature and humidity is determined by the strain change of the concrete in the cylinder under the same temperature and humidity conditions as the pavement concrete.
[0038] Specifically, the method includes the following steps:
[0039] a) Make the measuring cylinders required for the installation of concrete strain gauges (temperature condition measuring cylinders and temperature-humidity coupling condition measuring cylinders)
[0040] as attached figure 1 As shown, the temperature condition measur...
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