期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：12
页码：12453
DOI：10.15680/IJIRSET.2015.0412146
出版社：S&S Publications
摘要：Bio-enzyme is a natural, non toxic, non flammable, non-corrosive liquid enzyme formulation fermentedfrom vegetable extracts that improves the engineering qualities of soil, facilitates higher soil compaction densities andincreases stability. Enzyme catalyze the reactions between the clay and the organic cat-ions and accelerate the cat-ionicexchange process to reduce adsorbed layer thickness. For other types of chemical stabilization, chemicals are mixedwith soil, which is difficult to mix thoroughly, but bio-enzyme is easy to use as it can be mixed with water at optimummoisture content and then it is sprayed over soil and compacted.In this study Black cotton soil with varying index properties have been tested for stabilization process and strength ofthe stabilized soil were evaluated after curing period of 0 days, 14days, 21 days and 28 days for various enzymedosages 200ml/3m3, 200ml/2.5m3, 200ml/2m3, 200ml/1.5m3. The tests which were carried out are the CaliforniaBearing Ratio (CBR) test and Unconfined Compressive strength (UCS) test of the soil specimen. The test resultsindicate that bio-enzyme stabilization improves the strength of BC soil up to great extent, which indicate the bearingcapacity and the resistance to deformation increases in stabilized soil.An attempt has been made to study the properties of soil modified with the bio-enzyme , in order to use this technologyfor low volume roads. Based on laboratory findings, field trials were carried out using bioenzyme in some of roads inIndia. Moreover, in case of scarcity of granular material, only bio-enzyme stabilized surface with thin bituminoussurfacing also can fulfil the pavement design requirement. Adopting the IRC method based on soil CBR, the pavementdesign thickness on stabilized soil also reduces 25 to 40 percent.
关键词：Bio-Enzyme; Terrazyme; Soil Stabilization; Black Cotton Soil; CBR and UCS.
