International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 05 | May 2024
p-ISSN: 2395-0072
www.irjet.net
INNOVATIVE METHODS FOR SOIL STABILIZATIONS: AN OVERVIEW S. Gadling1, J. Tambare2, S. Kasare3, U. Londhe4, Dr. A. I. Dhatrak5, P. V. Kolhe6 1,2,3,4 UG Scholar, Department of Civil Engineering, GCOE Amravati, Maharashtra, India
5Associate Professor, Department of Civil Engineering, GCOE Amravati, Maharashtra, India 6PhD Research Scholar, Department of Civil Engineering, GCOE Amravati, Maharashtra, India
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Abstract - From last two decades, we have seen significant
presented to illustrate the effectiveness of these innovative soil stabilization solutions in various construction scenarios.
infrastructure development in India, leading to rapid pavement construction, often on soft and unfavorable ground. This necessitates thicker pavement layers due to low California Bearing Ratio (CBR) values, resulting in the depletion of natural resources. Soil stabilization offers an economical solution by modifying existing soil properties to meet design requirements. Cement-based stabilization is common, but new commercial stabilizers like Zycobond and Terrasil have emerged. Evaluating their effectiveness compared to traditional cement is crucial. Various studies have investigated the use of additives like Silica fume, Recron 3-S fiber, and Terrasil to enhance soil strength and reduce pavement thickness, focusing on increasing CBR values for economic benefits. Expansive soils pose challenges, expanding during monsoon and shrinking in summer, necessitating soil stabilization. Utilizing industrial by-products like Ground Granulated Blast Furnace Slag (GGBS) and Rice Husk Ash (RHA), along with additives such as Terrasil and Zycobond, offers promising solutions for improving soil properties and sustainable construction practices.
2. LITERATURE REVIEW Dr. R. S. Kumar et al. (2018) studied the effect of stabilizers (Zycobond and Terrasil) on strength of subgrade on BC soil. In order to carry out experimental investigation, clayey soil was collected from the Karimnagar District, Telangana, India. The chemical stabilizers used in the study were Zycobond and Terrasil. Zycobond and Terrasil were commercially manufactured by Zydex Industries. These stabilizers were used to investigate their effectiveness in improving the strength of subgrade on BC soil. The tests performed on the soil for its classification included the California Bearing Ratio (CBR) test, which measures the strength of the soil, and the moisture-density curve test, which determines the compaction characteristics of the soil. Additionally, the specific gravity, free swell percentage, liquid limit, plastic limit, plasticity index, and particle size distribution curve tests were conducted to further classify the soil. The results of the experiment showed that the addition of Zycobond and Terrasil to the clayey soil led to improvements in the unsoaked CBR value in the range of 2.7% to 6.31%. Additionally, the soaked CBR value showed improvement in the range of 2.17% to 3.72% for a dosage of 0.6kg Terrasil and Zycobond. Test results pertaining to Clay stabilized with Terrasil and Zycobond are given in Table 1.
Key Words: Soil Stabilization, Terrasil, Zycobond, Lime, Expansive soil
1. INTRODUCTION In civil engineering and building projects, soil stabilization is essential, particularly in regions with difficult soil composition. Conventional techniques such as using cement, lime, or asphalt are expensive and harmful to the environment. On the other hand, alternative, economical, and eco-friendly soil stabilization methods like Terrasil and Zycobond are gaining popularity. A soil stabilizer called Terrasil binds soil particles together to give them more strength and endurance. It works well on a variety of soil types, such as gravelly, clayey, and sandy soils. In contrast, Zycobond creates strong molecular bonds between soil particles, increasing the soil's resistance to load-bearing stresses and deformation. It works especially well in wide soils, high groundwater table regions, and harsh soil environments. Zycobond and Terrasil together can have synergistic effects on soil stability. In this paper, we will explore the principles behind the stabilization of soil using Terrasil and Zycobond, examining their mechanisms of action, benefits, applications, and potential challenges. Additionally, case studies and real-world examples will be
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Table 1: Test Results Pertaining to Clay Stabilized with TS and ZB (R. S. Kumar et al., 2018) CBR Test Results
Terrasil & Zycobond
Unsoaked
0.6 kg
6.31
3.2
3.4
3.72
0.75 kg
6.13
2.31
2.57
2.83
1 kg
5.51
1.42
1.68
1.94
Soaked Soaked Soaked 7 days 14 days 28 days
It was also observed that as the curing period increased, the ability to react the chemical with the soil increased, especially for the 0.6kg chemical dosage, and gradually decreased as the chemical dosage increased. These results indicate the effectiveness of Zycobond and Terrasil in improving the strength of the subgrade on BC soil.
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