Investigation on the Effect of Geotextiles on Pavement Bearing Capacity (Part 1: Experimental Studies)

Document Type : Research Article


1 Department of Civil Engineering, Bu-Ali Sina University, Hamedan, Iran

2 MSc, Department of Civil Engineering, Bu-Ali Sina University, Hamedan, Iran


Using geotextiles as a material with more tensile strength than soil has attracted attention of different researchers and organizations, particularly for road construction. In this research, first, the effect of geotextiles on pavement bearing has been investigated by laboratory model. Dimensions were determined in a way that boundaries have minimum effect on results. The free-end or fixed-end needle punched geotextiles were placed under a layer of sand (as sub-base) and over a layer of soft clay (as sub-grade). The results indicated that Fixed-End or Free-End conditions of geotextiles are similar to each other and geotextiles increase pavement bearing. This effect increases as displacement increases.


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