Volume 2, Issue 7

Volume 2, Issue 7

July, 2019

Review Paper

1. Cohesive soil stabilization by using different proportion of Bitumen Emulsion: A review

Nowadays it’s a great need to use an alternate material in construction which is having a good engineering property. The base soil is one of nature’s most common construction materials. Almost all types of construction are built with or upon the soil since centuries till today. The most important and effective part of road pavement is subgrade soil, its strength, and stability. If the strength of soil is poor, then stabilization is normally needed. The subgrade is sometimes stabilized or replaced with stronger soil material so as to improve the strength. Such stabilization is also suitable when the available subgrade is made up of weak soil and hence has poor stability. Increase in the subgrade soil, strength may lead to economy in the structural thicknesses of a pavement. The subgrade is sometimes stabilized or replaced with stronger soil material so as to improve the strength. Such stabilization is also suitable when the available subgrade is made up of weak soil. Increase in subgrade strength may lead to economy in the structural thicknesses of a pavement. Cement, fly ash, lime, fibers, etc. are very commonly used for soil stabilization. In this project, the strength of the soil is increased by adding bituminous emulsion instead of replacing with stronger soil. The initial strength of the soil is determined by conducting soil tests such as sieve analysis, plastic limit, liquid limit, shrinkage limit, proctor compaction test and California bearing ratio tests. The results obtained are then compared with the soil treated with bitumen emulsion at 0%, 5%, 10%, and 15%. Bitumen emulsions provide an unusual come within reach of in which the bitumen is dispersed into water. Emulsions can be used with cold and wet aggregates; the final strength of the road material develops as the emulsions .sets. Reverts to a continuous bitumen phase .and water is lost.

Published by: Himanshu, Nitin ThakurResearch Area: Civil Engineering

Organisation: Om Institute of Technology and Management, Hisar, HaryanaKeywords: Cement, Fly Ash, Lime, Fibers, Cationic Bitumen Emulsion

Research Paper

2. Utilization of Bitumen Emulsion for stabilization of soil subgrade

The term soil in soil engineering is defined as an unconsolidated material, composed of solid particles, produced by disintegration of rocks. Foundations are required to transmit the load of the structure to soil safely and efficiently. Whether the pavement is flexible or rigid, it rests on a soil foundation on an embankment or cutting, normally that is known as sub-grade. It generally occurs local soil just beneath the pavement crust, providing a suitable foundation for the pavement. So it is very necessary to enhance the load-bearing capacity of sub-grade by stabilization of sub-grade soil by adding some additive. Improvement of soil engineering properties is referred to as soil stabilization. There are two primary methods of soil stabilization. One is the mechanical method and the other one is chemical or additive methods. As we know that various type of material like cement, lime, fly ash, and natural and synthetic fibers are used for the stabilization of the soil. As we know bitumen emulsion is generally used in the patchwork, and for priming in the roads. The main objective of the research work is to improve the properties of the soil by adding Bitumen emulsion in soil. That is used as sub-grade in the construction of the road. In the research bitumen emulsion is used in the proportion of 0%, 5%, 10% & 15% in the soil. And for the strength properties, the CBR test is done on the soil mix with emulsion. Many other tests like Liquid limit and compaction test is done on the soil at different bitumen emulsion proportion. As a result bitumen emulsion gives good strength results as used in soil. It can be useful for rural pavements. For the aim of the research to encourage the use of bitumen emulsion for the soil stabilization and explored the properties and stability of soil by using bitumen emulsion as a stabilizing agent.

Published by: Himanshu, Nitin ThakurResearch Area: Civil Engineering

Organisation: Om Institute of Technology and Management, Hisar, HaryanaKeywords: Cement, Lime, Fly Ash, Natural and Synthetic fibers, Optimum Moisture Content (OMC)