LI Li-hua, WANG Zhao, TANG Jian-she. Determination of creep reduction factor of geosynthetics by time-temperature superposition[J]. 2005, 26(1期 刊出日).DOI:
The principle of time-temperature superposition (TTS) which can accelerate creep test of geosynthetics is introduced. The calculated formula and method of time shift factors are also introduced. If an inflexion point is present in curves
adjacent curves are shifted both horizontally and vertically. The creep strength of geosynthetics at the designed life by TTS can be determined by the curves of stress vs time. The creep reduction factor is determined with dividing the ultimate tensile strength by long-term creep strength. The procedures of determination of creep strength and creep reduction factor by TTS are mainly discussed in this paper. Finally
an example and some suggestions about improvement of this method are given.