INVESTIGATION EFFECT OF DIAMETER HOLE INFLUENCE IN COMPRESSIBILITY INJECTION OF POLYURETHANE COMPOSITE DOPED WITH RUBBER WASTE

Abstract

This study investigates the effect of diameter holes (10mm and 20mm) representing cracks condition and injected with polyurethane doped with rubber waste (PUCR) in the grouting method to enhance soil stability in clay soil. The PU is mixed with rubber waste using one-shot method and then injected into clay samples. Rubber waste offers an economical and sustainable solution for geotechnical and geological engineering. The research aims to evaluate the FTIR of clay soil and settlement of clay samples for normal clay condition (NC), crack 10 mm condition (CC -10), Injected PUCR0 -10mm (IP0-10), injected PUCR7.5 -10mm (IP7.5-10), crack 20 mm condition (CC -20), Injected PUCR0 -20mm (IP0-20), injected PUCR7.5 -20mm (IP7.5-20). The one-dimensional oedometer test compared clay sample compression after being treated with PUCR injection at holes of different sizes and diameters. Consolidation tests underscore the influence of the polyurethane ratio on soil compressibility and settlement behaviour. The study demonstrates the interrelated nature of consolidation, compaction, and plastic index tests in predicting soil response to loading and moisture, providing a comprehensive foundation for further research and development in composite materials and geotechnical engineering. The findings offer valuable insights for future applications and environmental considerations.