International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 06 | Jun 2024
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p-ISSN: 2395-0072
Experimental Study of Ground Improvement of Black Cotton Soil Using Enzyme & Polymer Sakshi Gaikwad1, Kshitij Jadhav1, Shubham Thigale1, Vaishali Gaikwad1 R S Kamble2 1BE Student, Dept. of civil Engineering, Government college of Engineering & Research Avasari Khurd, Pune,
Maharashtra, India
2Project Guide, Dept. of civil Engineering, Government college of Engineering & Research Avasari Khurd, Pune,
Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------soil shear strength, presenting them as promising Abstract - The most important requirement of any project alternatives to conventional stabilizers.
after performance criteria is its economical feasibility and serviceability criteria. The conventional methods are time consuming and are not economically feasible. Hence there is a need to discover the other possible ways to satisfy the performance as well as economical criteria. Vast areas of India consist of Black Cotton Soil which has high clay content, low strength and minimal bearing capacity. The poor engineering performance of such soils has forced Engineers device a cost effective and ecofriendly methods for improving the engineering properties of poor soils.
1.1 Aims & Objectives
This research project investigates the impact of bio-enzyme and polymers on the strength of clayey soils.The effect of the bio-enzyme and acrylic polymer on Atterberg's limits, compaction characteristics, and shear strength of soil was studied. On the basis of experimental results the optimum dosage of Bio-enzyme and polymer was obtained. The Bioenzyme has emerged as a material which drastically improves the properties of soil, is eco-friendly and is economical in long run. Supplied in liquid form, acrylic polymers are easily soluble in water, simplifying soil compaction and reducing the time and cost associated with traditional stabilizers. Bio-enzymes and polymer being non-toxic and biodegradable, offer a sustainable solution for enhancing soil stability, making them a promising alternative to conventional methods
1.2 MATERIALS USED Black cotton soil is a highly clayey soil. The black colour in Black cotton soil is due to the presence of titanium oxide in small concentration. The Black cotton soil has a high percentage of clay, which is predominantly montmorillonite in structure and black or blackish grey in colour. Expansive soils are the soils which expand when the moisture content of the soils is increased. The clay mineral montmorillonite is mainly responsible for expansive characteristics of the soil. The expansive soils are also called swelling soils or black cotton soils. The structures on Black cotton soil bases develop undulations at the road surface due to loss of strength of the sub-grade through softening during monsoon.
Key Words: Bio-enzymes, polymer, Black Cotton Soil, cost-effective, eco-friendly, biodegradable
1.INTRODUCTION
Bio-enzymes is a natural, non-toxic, noncorrosive and noninflammable liquid, produced by formulating vegetable extracts. Organic enzymes come in liquid form. They are perfectly soluble in water, brown in colour with smell of molasses. Their aroma has no effect. Neither gloves nor masks are required during handling. Bio-zyme is specially formulated to modify the engineering properties of soil. They require dilution in water before application. Bio-zyme when added to water and mixed with soil alters the engineering properties depending upon the type of the soil and dosage of enzyme. These enzymes are liquid additives, which act on
Sub-grade soil, crucial in construction, often lacks the strength to bear loads. Traditional stabilizers like lime and cement have drawbacks: lime dust is environmentally harmful, and materials like fly ash can be costly to transport. Grouting, an older method, increases soil bearing capacity but is uneconomical for sub-grade stabilization. Bio-zyme and acrylic polymer offer eco-friendly, cost-effective alternatives. Derived from natural substances, they enhance soil properties without environmental pollution. This study analyzes the effects of Bio-zyme and polymer on improving
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To characterize the effect of Bio-enzyme (Bio-zyme) and polymer (Acrylic polymer) on the soil. To study the effect of varying dosages of Bio-enzyme (Bio-zyme) and polymer (Acrylic polymer) on strength & other characteristics identified soil. To find out optimum Bio-enzyme (Bio-zyme) and polymer (Acrylic polymer) dosage required for selected soil To study the properties of stabilizer used in soil stabilization.
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