Effect of Bio-Enzyme Stabilization on Unconfined Compressive Strength of Expansive Soil

Agarwal, Puneet; Kaur, Suneet; Azad, Maulana

doi:10.15623/ijret.2014.0305007

Cited by 38 publications

(3 citation statements)

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“…The results obtained from the aforementioned study indicated a decrease in the UCS and the CBR values as the Alkazyme dosage was increased. Puneet and Suneet [15] reported a significant increase in the values of the UCS up to 200% when the soil was treated with Terrazyme, this was in agreement with the findings from other research in the field of Nanomaterial [16].…”

Section: Introduction 1backgroundsupporting

confidence: 91%

Archives of Civil Engineering

Abdulkareem,

Eyada,

Mahmood

2021

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Soil stabilization techniques are widely used for road construction to improve the properties of the subgrade materials. Using new additives and stabilizers to improve soil properties can reduce the costs of construction and reduce the possible negative effects of these materials on the environment. The purpose of this study was to evaluate the use of a liquid based nano-material called EarthZyme (EZ) and cement kiln dust (CKD) as admixtures to improve the soil properties. A mixture of two soils was used in this study which were prepared from mixing sand soil and fine-grained soil. Compaction tests were performed on the soil that was stabilized with the CKD to determine the density-water content relationships. Unconfined compression tests were also conducted on specimens without treatment, specimen treated with the CKD only, and specimens treated with the CKD and the EZ after curing period for seven days. The obtained results indicated that adding the CKD to the soil decreased the values of the unconfined compression strength (UCS) from 5 to 15 percent. However, adding the CKD reduced the maximum dry density (MDD) from 10 to 12 %. As discussed herein, soil stabilization with the EZ had insignificant effects on the results obtained from the unconfined compression test.

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Section: Introduction 1backgroundsupporting

confidence: 91%

Archives of Civil Engineering

Abdulkareem,

Eyada,

Mahmood

2021

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“…Bergmann (2000) concluded through studies that Bio-Enzymes need some clay content to strengthen the soils. It was observed that at least 2% clay is needed for successful stabilization whereas 10 to 15% clay gave very good results 1 . The product formed after the application of TerraZyme is biodegradable in nature and the effect is permanent.…”

Section: Characteristics Of Black Cotton Soil Under Various Enzymesmentioning

confidence: 99%

Analysis on the Strength Charecteristics of Clayey Soil With Geopolymer Enzyme (Biochemical Enzyme)

Raman¹,

Arumairaj²,

Sebastian³

et al. 2018

RJC

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A large part of India is covered with Black Cotton soil which is clayey in nature. These are the soils of residual deposits formed from basalt. In this research, bio-enzymes a chemical plasticizer and their effect on the engineering properties of soil are discussed. Recently there are many bio-enzymes are available for soil stabilization. Here we used biochemical enzyme-ECOZYME AE-40 in soil stabilization. The black cotton soil sample was collected from Kovilpatti, Tamil Nadu. The soil samples are treated & tested in the laboratory. The results of consistency limit, unconfined compression test, free swell index, Proctor compaction test CBR test indicates the properties of soil, which are important for the pavement construction. In this CBR test value is considered while designing flexible pavement. The treated and untreated soil condition is should vary among laboratory investigation in flexible pavement design (IRC: 37-1970

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“…Athira et al [3] mixed the Laterite soil of Kerala with Terrazyme and found an improvement of 139% in CBR value and 281 % in Unconfined compressive strength (UCS) at 28 days of curring. Agrawal [4] mixed 1 ml Terrazyme in 5 kg of Black Cotton soil and found 200 % increases in UCS. Khan et al [5] performed the experiments on clayey soil treated with three different enzymes and found an enhancement in unconfined compressive strength (UCS) and reduction in Swelling and shrinking.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation on Black Cotton Soil using Terrazyme

2021

IJE

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The application of biodegradable substances for the improvement of weak soil has given better results in the field of geotechnical engineering. These substances are fermented and extracted from vegetation. It reduced the void ratio, thickness of absorbed water and maximize the compaction. Terrazyme contains natural protein. It is non-toxic and eco-friendly. It is soluble in water. The black cotton soil is highly plastic with swelling potential. Reduction in moisture causes shrinking, leads to differential settlement of the foundation. This will results in damage to the structure. This paper presents experimental work on black cotton soil reinforced with Terrazyme. Various proportions of Terrazyme were mixed with black cotton soil to evaluate the engineering properties of soil. The change in index properties and strength parameters were assessed by experiments on treated and untreated soil. Atterberg limits, free swell index, compaction test, triaxial tests were performed. Experimental results show a reduction in liquid limit, plasticity index, free swell index, optimum moisture content, and compression index. Triaxial tests showed improvement in cohesion and angle of shearing resistance. The optimum dosage of Terrazyme was found 2% by weight of dry soil.

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Effect of Bio-Enzyme Stabilization on Unconfined Compressive Strength of Expansive Soil

Cited by 38 publications

References 0 publications

Archives of Civil Engineering

Archives of Civil Engineering

Analysis on the Strength Charecteristics of Clayey Soil With Geopolymer Enzyme (Biochemical Enzyme)

An Experimental Investigation on Black Cotton Soil using Terrazyme

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