@article{Thitapan Chantachot_Warat Kongkitkul_Fumio Tatsuoka_2021, title={LOAD-STRAIN-TIME BEHAVOURS OF TWO POLYMER GEOGRIDS AFFECTED BY TEMPERATURE}, volume={10}, url={https://geomatejournal.com/geomate/article/view/2048}, abstractNote={<p>A special series of tensile loading tests was performed on two types of geogrid using a wide <br>variety of load and temperature histories to evaluate the effects of ambient temperature on their load-strain-time<br>behaviours. The applied loading schemes included monotonic loading and sustained loading under different <br>controlled ambient temperature conditions. The followings were found from test results and their analysis <br>performed in this study. With an increase in the ambient temperature, the rupture strength and stiffness decreased<br>while the creep strain increased associated with a decrease in the stiffness. The creep strain by sustained loading <br>during which the temperature was elevated from 30 oC to 50 oC was significantly larger than the one by <br>sustained loading during otherwise monotonic loading at the constant temperature equal to either 30 oC or 50 oC. <br>The elastic stiffness decreased with an increase in the temperature while increased with the tensile load level. <br>Importantly, the residual tensile strength observed at the same ambient temperature was essentially independent <br>of pre-rupture loading histories.</p>}, number={21}, journal={GEOMATE Journal}, author={Thitapan Chantachot and Warat Kongkitkul and Fumio Tatsuoka}, year={2021}, month={Nov.}, pages={1869–1876} }