Method for determining diffusion coefficient of moisture in asphalt film
A diffusion coefficient and measurement method technology, applied in the field of material testing, can solve the problems of expensive test equipment, difficult data analysis, high cost, etc., and achieve the effect of simple test operation and intuitive and reliable test process
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[0026] (1) Set the temperature of the water bath to 25°C or other temperature required by the test, and turn on the heating and cooling cycle mode to ensure that the temperature of the water bath is constant during the test.
[0027] (2) Use an electronic balance with an accuracy of 0.1 mg to measure and record the mass of the aluminum sheet carrier; the side wall of the aluminum sheet carrier is coated with a vaseline release agent; the asphalt is heated to 150-160°C and poured on an aluminum sheet of 50mm×50mm×5mm, using Scrape the surface of the asphalt sample with a scraper to keep the thickness uniform; after the asphalt sample is cooled to room temperature, remove the excess asphalt on the side wall of the aluminum sheet carrier for later use.
[0028] (3) Use an electronic balance with an accuracy of 0.1 mg to measure and record the mass of the asphalt membrane aluminum sheet carrier, and further calculate the initial mass of the asphalt membrane before immersion m 0 , ...
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