ENHANCEMENT IN STRENGTH OF CLAYEY SOIL BY RECRON 3S FIBER AND ALCCOFINE 1203- A Review

Geotechnical engineers face various problems while designing the foundations on highly compressible clayey soil due to poor bearing capacity and excessive settlement. Most of the soil available are such that they have good compressive strength adequate shear strength but weak in tension / poor tensile strength. The quality and life of asphalt is enormously influenced by the sort of subgrades. In any case in India the greater parts of the adaptable asphalts have to be built over feeble and dangerous sub- grade. The California bearing proportion (CBR) of these subgrade have low, it needs to more thickness of pavement. Lessening in the accessibility of suitable sub base and base materials for asphalt development have prompts a look for financial technique for changing over generally accessible tricky soil to suitable development material. There is increase in the percentage of UCS, when sample were prepared with 2%, 4% by 3.02%, 4.70% and decrease in percentage of UCS, when sample were prepared with 6%, 8% Alccofine by 1.01%, 5.70% as compared to raw soil. The increase in UCS is maximum at 4% ALCCOFINE i.e. 4.70%. The experiments in combined sample of ALCCOFINE and Recron-3s fiber (2cm, 4cm, 6cm) shows that the maximum value of UCS are obtained at 4cm length with 1.5% by weight, which is found to be 3.73 kg/cm2. The percentage increase as compared to the raw soil is 25.16%. The soaked CBR value of the raw soil is 1.81% The soaked CBR value of the raw soil with 4% ALCCOFINE is 2.59%, the percentage increase in CBR value as compared to raw soil is 43.10%, The soaked CBR value of combined soil sample with 4% ALCCOFINE, 1.5% of Recron-3s fiber of 4cm length is found to be 3.09%, the increase in CBR value as compared to raw soil is 70.16%.