Asphalt anti-aging performance evaluation method based on dissipated energy
The invention discloses an asphalt anti-aging performance evaluation method based on dissipated energy. By measuring the change of the dissipated energy before and after asphalt aging, a short-term aging dissipated energy ratio, a long-term aging dissipated energy ratio and an aging degree ratio are...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses an asphalt anti-aging performance evaluation method based on dissipated energy. By measuring the change of the dissipated energy before and after asphalt aging, a short-term aging dissipated energy ratio, a long-term aging dissipated energy ratio and an aging degree ratio are calculated, and the anti-aging performance of asphalt is evaluated by taking the ratios as indexes.The method has the advantages that the testing time is short, the precision is high, a physical mechanics theory is clear, and the indexes are closely related to the change of asphalt aging components; and meanwhile, an anti-aging performance attenuation process is considered, so that the influences of factors such as great interference of human factors, unclear mechanics theory and the like on macroscopic evaluation of the anti-aging performance of the asphalt in current specifications, or, the negative influences such as expensive used instruments, high professional level requirements, great influence of the sample |
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