The Effect of the Matric Suction of Compacted Polyurethane-Clay Liner on the Development of Desiccation Cracks
Year: 2024
Type: conference-paper
Abstract: Sanitary landfills utilize impermeable liners to prevent leachate leakage, and the incorporation of polymer in clay layers have been studied to reduce the permeability.Studies that incorporated the polymer, polyurethane, with clay showed decreased permeability and shrinkage potential.Thus, the study investigates the crack propagation in a compacted clay layer drying on a grooved acrylic plate, which simulates friction during drying.The matric suction from the wet to dry condition was evaluated to determine its effect on the development of cracks.The findings indicate that the clay compacted with lower effort exhibited a lower suction, which reduced the cracks due to the reduction of internal stresses.Moreover, the increase in particle size induced by incorporating polyurethane affected the development of cracks.
DOI: 10.5109/7323278
Authors: Cielo D. Frianeza, Mary Ann Q. Adajar
Institution: De La Salle University
Language: English
Subfield: Waste Management and Disposal
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4404653702