Effect of silica fume on engineering properties of expansive soil

Singh, Pratyasha; Dash, H. K.; Samantaray, Sandeep

doi:10.1016/j.matpr.2020.02.839

Cited by 14 publications

(7 citation statements)

References 9 publications

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“…(2015) 21 7% Cement 1000 3500–5000 Akpokodje (1985) 12% Calcium carbide residue 800 2100 Silty clay Kampala and Horpibulsuk (2013) 7 6% Calcium carbide residue 78.4 855.54 Expansive clay Isah and Sharmilab (2015) 4% Calcium carbide residue 300 1400–1800 Latifi et al. (2018) Calcium carbide residue 286 1900 Latifi and Meahen (2017) 90 9% Silica fumes 48.98 198.65 37 120 7 11 Expansive soil Singh et al. (2020) 40%–60% CaCl 2 49.5 311.8 Krishna and Ramesh (2012) Polyurethane 125 216 Saleh et al.…”

Section: Discussion and Future Scope Of Researchmentioning

confidence: 99%

“…It increases the bond between soil particles, so an increase in cohesion is observed, resulting in increased UCS and CBR value of foundation soil. It contains mainly silica (SiO 2 ) and other oxides of Iron, Aluminium, Magnesium, Calcium and Sulphur in minor fraction ( Gupta and Sharma, 2014 ; Singh et al., 2020 ). They are mostly suitable for expansive soils and decrease soil permeability ( Sabat and Pati, 2014 ).…”

Section: Ground Improvement Using Chemical Stabilisersmentioning

confidence: 99%

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Ground improvement using chemical methods: A review

Verma

Ray

Rai

et al. 2021

Heliyon

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Ground improvement will be critically important in the present and future geotechnical practice for designing the structures in weak soil. This paper presents a review of the recent development in ground improvement techniques, especially chemical stabilisers. Various available chemical stabilisers are identified and compared with other available methods. Though the use of chemicals provides an excellent alternative to the traditional methods, they still lack proper understanding regarding their use, handling, application, and long-term effect on the environment. Various chemical stabilisers and their applicability conditions are summarised in the present paper. Insight of biochemical, electrochemical, inorganic, and organic stabilisers is presented with future scope of these methods along with the potential areas where a lot of efforts is needed to industrialise these methods are also discussed briefly. A need for developing a more environmentally friendly and safe method was felt while reviewing these methods. Lack of a large amount of data is a major concern for lesser use of these methods industrially. A lot of laboratory and field experiments should be conducted in different conditions to ensure safe results from chemical stabilisers.

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Section: Discussion and Future Scope Of Researchmentioning

confidence: 99%

Section: Ground Improvement Using Chemical Stabilisersmentioning

confidence: 99%

Ground improvement using chemical methods: A review

Verma

Ray

Rai

et al. 2021

Heliyon

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“…The main plastic-type material used in surgical FMs is polypropylene which takes many years to disintegrate in traditional waste disposal; on the other hand, when such FM waste ends up in the water bodies, it results in microplastics and breaches our ecosystems by ending up in our sustenance sources (Sarkodie and Owusu 2020 ; De-la-Torre and Aragaw 2021 ; Dharmaraj et al 2021 ). Thus, viable and productive FM waste management schemes are required, not only from an economic perspective but also to minimize the adverse effect of this pandemic on our ecosystem (Haleem et al 2020 ; Ibn-Mohammed et al 2020 ; Singh et al 2020a , b ).…”

Section: Introductionmentioning

confidence: 99%

“…However, to promote natural resource conservation and environmental burden reduction, the use of the aforementioned material is needed to be restricted by incorporating possible substitute waste materials (Xu et al 2020 ). In this regard, the use of silica fume (SF) in cementitious stabilization of fat clay could be a promising dimension since SF is widely incorporated as a cementitious material in the concrete (Al-Soudany 2018 ; Phanikumar 2020 ; Singh et al 2020a , b ). The amelioration of mechanical properties of fat clay with cementitious agents is reliable in terms of strength (Tiwari et al 2020 ).…”

Section: Introductionmentioning

confidence: 99%

“…The amelioration of mechanical properties of fat clay with cementitious agents is reliable in terms of strength (Tiwari et al 2020 ). However, the ductility of stabilized fat clay with the cementitious additives deteriorates considerably due to increase in the hardened gel in the soil specimen (Phanikumar 2020 ; Singh et al 2020a , b ). Treatment of fat clay with such additives may not be desirable under seismic loading or where sudden failures are to be avoided.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of COVID-19 face mask waste fibers and silica fume as a balanced mechanical ameliorator of fat clay using response surface methodology

Rehman

Khalid

2021

Environ Sci Pollut Res

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The balanced amelioration of mechanical characteristics of fat clay with an additive refers to the attainment of high strength without compromising ductility, which is unattainable by solitary usage of a cementing additive. For this purpose, an amalgamated binary admixture (ABA) is proposed by assimilating shredded face mask (FM) waste, which is posing serious environmental concerns these days, with a cementitious waste material, i.e., silica fume (SF). However, for such ABA, the optimization of mix design is desirable because an excessive amount of one component could disturb the required balance. To address this issue, response surface methodology (RSM) is used in the current study, which is a strong technique used during the process of production to develop, improve, and optimize product inputs. Several experiments are designed and conducted to evaluate mechanical responses, i.e., unconfined compressive strength ( q u ), brittleness index ( I B ), deformability index ( I D ), and California bearing ratio ( CBR ) value, of treated fat clay by varying mix designs of ABA. Based on the test results, mathematical models are developed which are found to be statistically valid to predict the subjected responses using SF and FM as inputs. Afterward, an optimized mix design is determined by integrating developed models with a desirability function model and setting maximization of strength and ductility as the optimization goals. An ABA having 7.9% SF and 1.2% FM is observed to provide the highest strength and ductility for multiple applications, i.e., road and buildings, with desirability factor close to unity; responses of which are also validated by performing tests. Furthermore, analysis of cleaning aspect shows that the use of optimized ABA in place of cement for subgrade improvement of 1 km two-lane road could avoid CO 2 emission of around 79,032 kg of C, save 42,720 kWh and 1174.8 GJ of electrical and thermal energy, respectively, and clean 43 Mg of FM waste; however, astute protocols of COVID-19 FM waste handling and disinfection are needed to be established and followed.

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The Engineering Behind Soil Stabilization with Additives: A State-of-the-Art Review

Anburuvel

2023

Geotech Geol Eng

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Effect of silica fume on engineering properties of expansive soil

Cited by 14 publications

References 9 publications

Ground improvement using chemical methods: A review

Ground improvement using chemical methods: A review

Optimization of COVID-19 face mask waste fibers and silica fume as a balanced mechanical ameliorator of fat clay using response surface methodology

The Engineering Behind Soil Stabilization with Additives: A State-of-the-Art Review

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