Study on tensile properties of rice straw rope considering degradation

Abstract

Many scholars have used crop straw to reinforce soft soil foundation and studied its reinforcement effect and mechanism. However, the crop straw will degrade in the soil for a long time, which reduces the tensile strength of the straw and weakens the shear resistance of the reinforced soil. In order to study the degradation law of rice straw rope and its influence on tensile properties, the straw rope was immersed in water for different time, and then taken out, the quality before and after immersion was measured and tensile test was carried out. The results showed that: the degradation of rice straw rope in water experienced two stages of rapid degradation and slow degradation, and the quality of loss in the rapid degradation stage was more; the tensile force of straw stalk rope increased slowly with the increase of tensile displacement. When immersed for 20 days, the failure mode was brittle failure, and after 40 days of immersion, the failure mode changed into ductile failure; the straw stalk rope was the main tensile force of the straw fiber, and the tensile strength peak decreased with the increase of the immersion time. The deterioration law accorded with the third-order polynomial function.

Rice Straw for Interior Elements of a Local “Wedangan” Culinary Business in Surakarta

“…Estimates of unused rice straw are around 60% (Anonymous, 2003) Previous studies and descriptions noted the idea of product creation that turns rice straw into ropes (Ahuja & Ahuja, 2013) (Tang, Qi, Ding, Hao, & Xu, 2020).…”