A Study On Soil Stabilization with Jute and Coir in Highway Sub-Grade

Abstract

Many soils in natural state at the construction site are very weak as per structural design load. For improvement soil stabilization methods are applied. Soil stabilization is method of addition of material for enhancing the properties of weak soil. Methods available for the stabilization of soils with materials like cement, lime as additive, chemical stabilization are available. Duty of an engineer is to utilize the waste materials as additives so that waste disposal can be achieved effectively in addition to improvements in soil properties. In this study we used Jute and Coir Husk Ash as stabilized material for soil as these two materials were easily available, cheap and were available in abundance. Highway sub grade plays an important role in distribution of load from upper layers to lower layers safely so its strength and load bearing capacity must to enough to hold the stresses and load. So by using these above mentioned material an effort was made to improve the properties of sub grade soil. Tests like Liquid limit, plastic limit, specific gravity test, standard proctor test, CBR test and unconfined compressive strength tests were conducted. It was seen that OMC and MDD was achieved with 1% replacement with Jute and in case of Coir husk ash it was also with 1% replacement. Compressive strength increase with increase in replacement of Jute and Coir at 1% for both. Same was the case for CBR value.