Investigation of Enzyme–Based Soil Stabilization in Field Application

Sidiq, Amir; Robert, Dilan; O’Donnell, Brian; Setunge, Sujeeva; Swarup, Anoop; Tostvrsnik, Frank

doi:10.1061/(asce)mt.1943-5533.0004742

Cited by 6 publications

(4 citation statements)

References 33 publications

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“…Previous similar research by (Sidiq, 2023) examined comprehensively the dynamics of regulation and its impact on economic growth, the results showed that the relationship between law and economics has complex intersections and influences each other. Proper economic regulation can play an important role in regulating economic activity, promoting growth, and creating a conducive business environment.…”

Section: Introductionmentioning

confidence: 97%

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Dynamics Of Investment Regulation: A Legal Review Of Law No. 25 Of 2007 On Investment In Indonesia In Overcoming The "Investment Ghost"

Nurmal

2023

SLJIL

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Investment is one of the important factors in economic growth. Through investment, a country can obtain the capital and technology needed to develop its economy. Indonesia is one of the countries that has great potential to attract foreign investment. However, Indonesia also has a number of challenges in attracting investment, one of which is the "investment ghost". This study aims to provide an overview of how investment regulations in Indonesia have changed and evolved in an effort to overcome the "investment ghost". This study utilizes a qualitative research method. Data is collected through a literature study of various laws and regulations, scientific literature, and related documents. The data that has been collected is then analyzed using three stages, namely data reduction, data presentation and conclusion drawing. The results show that in overcoming investment ghosts, the government overcomes these problems with Law No. 25/2007 on Investment (UUPM). The UUPM adopts the principles of transparency, ease of doing business, and fair business competition. The UUPM also gives greater authority to local governments in organizing investment affairs, which is expected to speed up the investment licensing process and improve coordination between the central government and local governments. Therefore, the UUPM has succeeded in creating a more conducive and attractive investment climate for investors.

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Section: Introductionmentioning

confidence: 97%

“…Such regulations can increase legal certainty, encourage investment, trigger innovation, maintain healthy competition, and support efforts to equalize economic development. Thus, proper regulation can be one of the drivers of positive and sustainable economic growth (Sidiq et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Dynamics Of Investment Regulation: A Legal Review Of Law No. 25 Of 2007 On Investment In Indonesia In Overcoming The "Investment Ghost"

Nurmal

2023

SLJIL

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“…It must be underlined that methods of soil/tailing stabilization are subject to current development and valuable contributions concerning both sources of contamination and protective measures are being published worldwide [13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Cement Stabilization of Waste from Contaminated Soils in Terms of Its Installation into Engineered Landfill

Kwiecień,

Podgórska,

Rybak

et al. 2023

Applied Sciences

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Remediation and preparation for development is a crucial aspect of the valorization of post-mining areas. This study is focused on technologies devoted to the cement stabilization of post-industrial waste and petroleum contaminated soils. Two case studies are presented. Case 1 is based on the stabilization works of waste from a closed chemical plant in order to turn it into an engineered landfill. The results form the basis for numerical studies of slope stability. The shorter case 2 is based on the laboratory testing of a soil–cement composite with regard to petroleum contamination and the application of active carbon to neutralize it in the course of deep soil mixing. Both cases, due to the use of slag cement, are not considered to be sustainable (due to a relatively high carbon footprint), but they represent current geotechnical practice and form a reference for a wide range of applications. Both cases show the positive impact of stabilization by means of the addition of a hydraulic binder. The effect of soil improvement is measurable in terms of the stability factor of landfill slopes. The effect of active charcoal addition seems to be a valuable improvement to standard deep soil mixing technology in the case of contaminated soil. The presented results, despite their local importance related to the cases under scrutiny, have an important educational and scientific value for the energy sector, where contaminated sites need to be valorized.

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“…Enhancement in soil qualities, including water retention, pollutant mitigation, and shear strength, has been accomplished using bio-geo-engineering techniques such as EICP and MICP. The efficiency of EICP and MICP depends on the microbes present and is more effective in the stabilization of cohesionless soils [5,14]. Biopolymers are gaining the attention of researchers as their application in the field is simpler and more efficient in soil stabilization.…”

Section: Introductionmentioning

confidence: 99%

Embodied Energy in the Production of Guar and Xanthan Biopolymers and Their Cross-Linking Effect in Enhancing the Geotechnical Properties of Cohesive Soil

Kumar,

Moghal,

Vydehi

et al. 2023

Buildings

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Traditional soil stabilization techniques, such as cement and lime, are known for their menacing effect on the environment through heavy carbon emissions. Sustainable soil stabilization methods are grabbing attention, and the utilization of biopolymers is surely one among them. Recent studies proved the efficiency of biopolymers in enhancing the geotechnical properties to meet the requirements of the construction industry. The suitability of biopolymer application in different soils is still unexplored, and the carbon footprint analysis (CFA) of biopolymers is crucial in promoting the biopolymers as a promising sustainable soil stabilization method. This study attempts to investigate the out-turn of cross-linked biopolymer on soils exhibiting different plasticity characteristics (Medium & High compressibility) and to determine the Embodied carbon factor (ECF) for the selected biopolymers. Guar (G) and Xanthan (X) biopolymers were cross-linked at different proportions to enhance the geotechnical properties of soils. Atterberg’s limits, Compaction characteristics, and Unconfined Compressive Strength were chosen as performance indicators, and their values were analyzed at different combinations of biopolymers before and after cross-linking. The test results have shown that Atterberg’s limits of the soils increased with the addition of biopolymers, and it is attributed to the formation of hydrogels in the soil matrix. Compaction test results reveal that the Optimum Moisture Content (OMC) of biopolymer-modified soil increased, and Maximum Dry Density (MDD) reduced due to the resistance offered by hydrogel against compaction effort. Soils amended with biopolymers and cured for 14, 28, and 60 days have shown an appreciable improvement in Unconfined Compressive Strength (UCS) results. Microlevel analysis was carried out using SEM (Scanning Electron Microscopy) and FTIR (Fourier-transform infrared spectroscopy) to formulate the mechanism responsible for the alteration in targeted performance indicators due to the cross-linking of biopolymers in the soil. The embodied energy in the production of both Guar and Xanthan biopolymers was calculated, and the obtained ECF values were 0.087 and 1.67, respectively.

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Investigation of Enzyme–Based Soil Stabilization in Field Application

Cited by 6 publications

References 33 publications

Dynamics Of Investment Regulation: A Legal Review Of Law No. 25 Of 2007 On Investment In Indonesia In Overcoming The "Investment Ghost"

Dynamics Of Investment Regulation: A Legal Review Of Law No. 25 Of 2007 On Investment In Indonesia In Overcoming The "Investment Ghost"

Cement Stabilization of Waste from Contaminated Soils in Terms of Its Installation into Engineered Landfill

Embodied Energy in the Production of Guar and Xanthan Biopolymers and Their Cross-Linking Effect in Enhancing the Geotechnical Properties of Cohesive Soil

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