BEHAVIOUR OF INTERFACES BETWEEN CARBON FIBRE REINFORCED POLYMER AND GRAVEL SOILS

I. Lavanya, R. Prabha, M. Murugan

Abstract: Friction between soil and foundation materials is of major significance to make a good estimation of frictional resistance between soil and substructures. Soil-substructure interaction problems including retaining walls, deep foundations, soil samplers, soil and geo-membrane interface strength, and the stability of mechanically stabilized structures. Fibre Reinforced Polymer (FRP) is a synthetic material and can be effectively used for strengthening of soils and substructures retrofitting. This paper describes the results of an experimental study of interface friction between Carbon Fibre Reinforced Polymer (CFRP) wrapped concrete specimens and gravel soils. The experimental results showed that there is a significant decrease in the angle of interface friction with CFRP wrapping.

Keywords: Direct shear test, gravel soils, internal friction angle, interface friction angle, CFRP

DOI: https://doi.org/10.15623/ijret.2014.0323034