Yuta Furukawa
Study on stretching characteristics of the telescopic dispersive buried joint using the HPM to the substratum.
Osamu Takahashi
The telescopic dispersive buried joint is a method that was serialized in the asphalt pavement joints of the road bridge, is dispersed absorbed into the pavement stress and the strain caused by the displacement of the beam end. Goose asphalt mixture is typically used in the substratum of the buried joint using grid panel. But, because it has become difficult to obtain Goose asphalt mixture recently, there is a need for further high performance, High Polymer Mixture¡ÊHPM¡Ëhas been proposed as an alternative. This study was assess the role of the aim to evaluate the tensile properties of the telescopic dispersive buried joint with HPM, the tensile test was conducted directly in the constant strain rate for HPM specimens embedded panel, by using the time temperature superposition principle, to evaluate the tensile properties of the strain rate is low.
Show the results of the tensile test directly. In the context of the stress and strain of HPM obtained from the test, tend to strain rate becomes faster at the same test temperature, stress increases were observed. In addition, as the temperature increases in the same strain rate, and tended to stress is reduced
Based on the results of HPM obtained in this study, to determine the relaxation modulus master curve of HPM. Further, the test data of the past, and also determined relaxation modulus master curve Goose asphalt mixture, and compared the two.
In the relaxation modulus master curve of either, relaxation modulus showed a large value as the conversion time is short, it can be seen that relaxation modulus decreases gradually in terms of time becomes longer as a result. Further, at the time relaxation modulus is short here for Goose asphalt, the greater the relaxation modulus than the HPM, but has resulted in conversion time becomes longer, it gradually approaches the HPM gradually.
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