Sustainability effect of geogrid reinforced tire-shred sand mixtures on the load pressure-settlement response of shallow footing.

This study aims to observe the possibility of using tire shreds as sustainable waste materials by including a geogrid wrap-around sheet to improve the response of load-settlement of the sandy bed. Therefore, a series of physical modeling tests were conducted to investigate the behavior of tyre-shred-geogrid reinforced sand under static plate loading. Experimental tests on tire-shred sand reinforced with geogrid sheets were carried out in the first step. Next, laboratory tests were conducted on tire-shredded sand with geogrid wraparound sheets, and the results were compared with the initial experiment. In terms of the parameters studied, the total depth of the tire-shred with planar and wraparound layers, the length and overlaps of the wraparound layers, and the space between the wraparound geogrid sheets were analyzed. According to the results, the inclusion of tire-shields in reinforced soil foundations with wraparound geogrid layers significantly improved the load-bearing capacity. Additionally, both planar and folded geogrid sheets had bearing capacity ratios greater than 3 and 4.5. The carrying capacity of soil-tire shred reinforced with inclusion of geogrid sheet is superior to that of geogrid-reinforced soil without tire shred.