An Experimental Study on the Combined Effect of Reinforcement and Stabilization on the Shear Behavior of Babolsar Sand

Improvement of weak soils with adding elements such as fibers that can increase tensile strength and stabilizing soils with additives that react chemically with them to make soils with desirable engineering properties is called reinforcement and stabilization (Consoli et al 2009). Researchers have always tried to improve bearing capacity, strength and properties of soil using different methods such as mechanical and chemical modifications and also reinforcement by high tensile strength elements Ghiassian, H. and Holtz, D, H., 2005). Randomly distributed discrete fibers offer strength isotropy and limit potential planes of weakness that can develop parallel to oriented reinforcement (Yetimoglu, T. and Salbas, O., 2003). Cementation in its general sense is binding and in geotechnical engineering, cementation is sticking soil particles to each other to form a cohesive mass with a higher strength. Soil structure is one of the factors that can affect behavior of (fine and coarse- grained) soils. Cementation plays an important role in the structure formation of coarse-grained soil. Soil structure is geometric arrangement of the soil particles and the forces, if any, between them the objective of this research is experimental study of the effect of reinforcement and stabilization on the behavior of sandy soil and evaluating effect of fibers on the shear behavior of cemented sand using strain-controlled triaxial tests under consolidated undrained conditions.