Title Laboratory determination of strength properties of frozen rubber-sand mixtures
Author Christ, M.; Park, J.
Author Affil Christ, M., Seoul National University, Department of Civil and Environmental Engineering, Seoul, South Korea
Source Cold Regions Science and Technology, 60(2), p.169-175, . Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0165- 232X
Publication Date Feb. 2010
Notes In English. Based on Publisher- supplied data GeoRef Acc. No: 309596
Index Terms compressive properties; deformation; experimentation; friction; frozen ground; frozen ground mechanics; low temperature research; low temperature tests; mechanical properties; sediments; cohesion; soil mechanics; strains; stresses; temperature; tensile properties; clastic sediments; compressive strength; experimental studies; failures; granulated rubber; laboratory studies; low temperature; sand; shear strength; strain; stress; tensile strength; uniaxial tests
Abstract The objective of this study was to investigate the strength characteristics of frozen rubber-sand mixtures. Uniaxial compressive strength, direct-tensile strength and direct-shear tests were conducted on rubber-sand mixtures at various rubber contents (0, 10, 15, 20, and 30%) and low temperatures. The results showed that the strength characteristics of rubber-sand mixtures were influenced by temperature and rubber content. It was found that the strength of frozen sand and rubber-sand mixtures was significantly greater than that of unfrozen sand and rubber-sand mixtures. The increase in strength continued with a decrease in subfreezing temperature. The addition of rubber to sand decreased the strength, namely, the higher the rubber content in the mix, the lower the strength. Based on compaction characteristics and the formulation of minimum void ratio the optimum rubber-mixing ratio was found to be around 15%. The strength test data suggests that a low rubber-mixing ratio and subfreezing temperature give high strength, while the addition of rubber to sand provides an opportunity to control failure deformation characteristics and earth pressure.
URL http://hdl.handle.net/10.1016/j.coldregions.2009.08.013
Publication Type journal article
Record ID 65006512