LAUSR

Abstract A new geocomposite material introduced by cement treatment of the surfaces of an ordinary woven geosynthetic. Thin layers of cementitious material created on the surfaces of geosynthetic spraying the portland cement on the surfaces of a saturated geosynthetic and coating with sand. The interface behavior of the proposed cement coated geocomposite and sand was investigated in the laboratory using a series of pullout tests. The pullout tests performed on both cement coated geocomposites and pristine geosynthetics then the results were compared. The results of laboratory tests indicated that the interface adhesion, interface friction angle and pullout capacity of cement coated geocomposite is higher than those of pristine geosynthetic. For a similar stress level and thicknesses, the average interface friction angle and pullout capacity of the cement coated geocomposite were 29% and 38% higher than those of pristine geosynthetic which was used to produce the cement coated geocomposite.