Presented By:-Shoaib Wani

Plastic As A Soil Stabilizer

Introduction: Soil stabilisation means the improvement of stability or bearing capacity

of the soil by the use of controlled compaction, proportioning and/or the

addition of suitable admixture or stabilisers.

The objective of this study is to improve the characteristics at site and

make soil capable of carrying load and to increase the shear strength by

decrease the compressibility of the soil.

Soil stabilisation using raw plastic bottles is an alternative method for the improvement of sub grade soil of pavement.

It can significantly enhance the properties of the soil used in the construction of road infrastructure. Results include a better and longer lasting road with increased loading capacity and reduced soil permeability.

In order to conduct this study, various materials such as lateritic soil, plastic bottles (both cut and uncut), sea sand and synthetic threads were used.

The Standard Proctor Compaction tests were done to assess the amount of compaction

The California Bearing Ratio test was conducted to determine the optimum amount of plastic strips in soil. This is done by mixing soil with varying percentages (0.0%, 0.2%, 0.4% etc.) of plastic strips in soil and the 4 day soaked CBR Value is obtained

Plate load tests were conducted with plain lateritic soil

RESULTS AND DISCUSSIONS 

COMPACTION TEST:-From the compaction curve, the maximum dry density and optimum moisture content were obtained as 18.95kN/m3 and 11.22 % respectively.

The use of plastic wastes has significantly helped in ground improvement.

This new technique of soil stabilisation can be effectively used to meet the challenges of society, producing useful material from non-useful waste materials.

It can significantly enhance the properties of the soil used in the construction of road infrastructure. Results include a better and longer lasting road with increased loading capacity.

1. Arora, K. R. (2004). Soil Mechanics and Foundation Engineering. Standard Publishers Distributors.

2. Kumar, M. A., Prasad, D. S. V. and Prasadaraju, G.V. R. (2009). Utilisation of industrial waste in flexible pavement construction. Electronic Journal of Geotechnical Engineering, Vol. 13

3. IS: 1888(1982), Method of Load Test on Soils. Indian Standards Institutions, New Delhi.

4. Bateni, F. (2009). Stabilisation Mechanisms of oil palm fruit bunch fibre reinforced silty sand. Unpublished Ph.D. Thesis, University of Auckland.

5. Purushothama Raj, P. (2005). Soil Mechanics and Foundation Engineering. Pearson Education