ABSTRACT
The use of lime/cement stabilised soils in geotechnical engineering is increasing due to environmental and financial reasons. The objectives of mixing additives are to improve volume stability, strength and stressstrain properties. Like other construction materials of limited strength, soil also can be reinforced with foreign material. When geosynthetics are included in soil they improve its engineering performance and can also lower the costs of construction. The concept of soil reinforcement with geosynthetics is a technique where tensile elements are placed in the soil to improve stability and control deformation. In many cases both the above mentioned stabilisation techniques can be advantageously combined. This paper focuses on the use of lime/cement stabilised local soils in combination with geosynthetic (geogrid) reinforcement. Apart from the short and long-term tensile properties of the reinforcing geogrids their strain and tensile moduli, durability and coefficient of interaction with the stabilised soils are important for the bearing capacity and serviceability of such earth structures.
