Effects of Granulated Ground Blast Furnace Slag and Fly Ash on Stabilization of Soil

Tyagi, Arshad; Soni, D. K.

doi:10.1007/978-981-13-7017-5_9

Cited by 7 publications

(6 citation statements)

References 3 publications

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“…Fly ash is a material that is increasingly being used as a cement alternative in concrete mixtures and for soil stabilization [ 25 , 27 , 29 , 36 , 38 , 40 , 42 , 54 ]. The addition of fly ash is one of the methods to stabilize soil because fly ash is a pozzolan, in which it can bind to minerals in soil and make the soil stable, so as to reduce the swell shrinkage of the soil and improve soil strength [ 41 , 42 , 44 , 46 , 54 , 69 , 70 , 71 , 72 , 73 ]. The morphology of fly ash can be seen in Figure 1 .…”

Section: Soil Stabilization By Conventional Methodsmentioning

confidence: 99%

“…GGBFS material is also used as a substitute for cement in concrete mixtures and as a material for soil stabilization [ 42 , 48 , 54 , 59 , 65 , 66 ]. Mixing GGBFS with soil improves compressive strength, permeability, and durability [ 39 , 54 , 65 , 66 , 67 , 68 , 69 ]. The morphology of GGBFS can be seen in Figure 2 .…”

Section: Soil Stabilization By Conventional Methodsmentioning

confidence: 99%

“…Another study by Tyagi et al [ 69 ] investigated soil stabilization with GGBFS and fly ash. Fly ash and GGBFS were utilized in amounts of 0%, 5%, 10%, 15%, 20%, 25%, and 30%, respectively, by weight of the soil sample.…”

Section: Soil Stabilization By Conventional Methodsmentioning

confidence: 99%

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Potential of Soil Stabilization Using Ground Granulated Blast Furnace Slag (GGBFS) and Fly Ash via Geopolymerization Method: A Review

et al. 2022

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Geopolymers, or also known as alkali-activated binders, have recently emerged as a viable alternative to conventional binders (cement) for soil stabilization. Geopolymers employ alkaline activation of industrial waste to create cementitious products inside treated soils, increasing the clayey soils’ mechanical and physical qualities. This paper aims to review the utilization of fly ash and ground granulated blast furnace slag (GGBFS)-based geopolymers for soil stabilization by enhancing strength. Previous research only used one type of precursor: fly ash or GGBFS, but the strength value obtained did not meet the ASTM D 4609 (<0.8 Mpa) standard required for soil-stabilizing criteria of road construction applications. This current research focused on the combination of two types of precursors, which are fly ash and GGBFS. The findings of an unconfined compressive strength (UCS) test on stabilized soil samples were discussed. Finally, the paper concludes that GGBFS and fly-ash-based geo-polymers for soil stabilization techniques can be successfully used as a binder for soil stabilization. However, additional research is required to meet the requirement of ASTM D 4609 standard in road construction applications, particularly in subgrade layers.

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Section: Soil Stabilization By Conventional Methodsmentioning

confidence: 99%

Section: Soil Stabilization By Conventional Methodsmentioning

confidence: 99%

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Potential of Soil Stabilization Using Ground Granulated Blast Furnace Slag (GGBFS) and Fly Ash via Geopolymerization Method: A Review

et al. 2022

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“…This is why soil stabilization/reinforcement techniques are being developed to increase the shear and compressive strengths, bearing capacity and permeability of the structures [ 51 ]. Chemical techniques are being used for expansive soil reinforcement and stabilization through application of fly ash [ 52 ], lime [ 53 ], geo-polymers [ 54 ], cement [ 55 ], and ground granulated blast furnace slag [ 56 ]. Furthermore, mechanical techniques have been proposed as a more sustainable solution for expansive soil reinforcement based on randomly distributed synthetic fibers such as polypropylene (PP) [ 57 ], polyester [ 58 ], polyvinyl alcohol (PVA) [ 59 ], waste carpet [ 60 ], glass [ 61 ], and carbon [ 62 ]), as well as natural (biobased) fibers such as kenaf [ 63 ], corn husk [ 64 ], hemp [ 65 ], bagasse [ 66 ], sisal [ 67 ], and jute [ 68 ].…”

Section: Soil Compositementioning

confidence: 99%

Sustainable Reuse of Waste Tire Textile Fibers (WTTF) as Reinforcements

Fazli

Rodrigue

2022

Polymers

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Waste tire textile fibers (WTTF), as a by-product (10–15% by weight of tires) of end-of-life tires (ELT) mechanical recycling (grinding), are classified as hazardous wastes and traditionally burnt (thermal recycling) or buried (landfilling), leading to several environmental and ecological issues. Thus, WTTF still represent an important challenge in today’s material recycling streams. It is vital to provide practical and economical solutions to convert WTTF into a source of inexpensive and valuable raw materials. In recent years, tire textile fibers have attracted significant attention to be used as a promising substitute to the commonly used natural/synthetic reinforcement fibers in geotechnical engineering applications, construction/civil structures, insulation materials, and polymer composites. However, the results available in the literature are limited, and practical aspects such as fiber contamination (~65% rubber particles) remain unsolved, limiting WTTF as an inexpensive reinforcement. This study provides a comprehensive review on WTTF treatments to separate rubber and impurities and discusses potential applications in expansive soils, cement and concrete, asphalt mixtures, rubber aerogels and polymer composites.

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“…The most effective pozzolanic materials commonly used in soil remediation practices include fly ash, 20 perlite, 21 metakaolin, 22 silica fume, 23 rice husk ash, 24 basic oxygen steel slag (BOS) 25 and natural zeolite. 26 Amongst these, zeolite is one of the most effective pozzolans with large amounts of silica and alumina (more than 60%).…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization of sustainable cement-zeolite improved sand based on life cycle assessment and artificial intelligence

Nasrollahpour,

Tanhadoust,

Kaur Brar

et al. 2024

F1000Res

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Background Cement-zeolite improved sand can be used in diverse civil engineering applications. However, earlier research has not duly optimized its production process to attain best mechanical strength, lowest cost, and least environmental impact. This study proposes a multi-objective optimization approach using back-propagation neural network (BPNN) to predict the mechanical strength, along with an adaptive geometry estimation-based multi-objective evolutionary algorithm (AGE-MOEA) to identify the best parameters for cement-zeolite-improved sand, filling a long-lasting research gap. Methods A collection of unconfined compression tests was used to evaluate cemented sand specimens treated with stabilizers including portland cement (at dosages of 2, 4, 6, 8, and 10%) and six dosages of natural zeolite as partial replacement for cement (0, 10, 30, 50, 70, and 90%) at different curing times of 7, 28, and 90 days. The study further conducts a detailed analysis of life cycle assessment (LCA) to show how partial zeolite replacement for cement impacts the environment. Through a tuning process, the BPNN model found the optimal architecture and accurately predicted the unconfined compressive strength of cement-zeolite improved sand systems. This allowed the AGE-MOEA to optimize zeolite and cement dosages, density, curing time, and environmental impact. Results The results of this study reveal that the optimal range of zeolite was between 30-45%, which not only increased cemented sand strength, but also reduced the cost and environmental impact. It is also shown that increasing the zeolite replacement to 25-30% can increase the ultimate strength of cemented sand, yet exceeding this limit can cause the strength to decrease. Conclusions Zeolite has the potential to serve as an alternative for cement in applications that involve cemented sand, while still achieving mechanical strength performance, which is comparable or even superior. From an LCA standpoint, using zeolite as partial cement replacement in soil improvement projects is a promising alternative.

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Effects of Granulated Ground Blast Furnace Slag and Fly Ash on Stabilization of Soil

Cited by 7 publications

References 3 publications

Potential of Soil Stabilization Using Ground Granulated Blast Furnace Slag (GGBFS) and Fly Ash via Geopolymerization Method: A Review

Potential of Soil Stabilization Using Ground Granulated Blast Furnace Slag (GGBFS) and Fly Ash via Geopolymerization Method: A Review

Sustainable Reuse of Waste Tire Textile Fibers (WTTF) as Reinforcements

Multi-objective optimization of sustainable cement-zeolite improved sand based on life cycle assessment and artificial intelligence

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