Effect of Silica Fume as a Waste Material for Sustainable Environment on the Stabilization and Dynamic Behavior of Dispersive Soil

Türköz, Murat; Umu, Seyfettin Umut; Öztürk, Ogan

doi:10.3390/su13084321

Cited by 26 publications

(19 citation statements)

References 46 publications

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“…Further addition of ESA in kaolinite clay-SF mix leads to a reduction in the UCS, while additional L in kaolinite clay-SF mix results in a significant increment in the UCS. Similar observations were made by Türköz et al [23], Phanikumar et al [24], and Yuan et al [25]. The findings indicate that the application of SF-ESA-L resulted in a substantial increase in UCS, with strength improvement reaching up to 81.03% (69.344 kN/m²).…”

Section: Unconfined Compression Testsupporting

confidence: 87%

Stabilization of Expansive Soil using Silica Fume and Lime

Zaini,

Hasan

2024

Constr.

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Structures built on soft clays frequently encounter stability and settlement issues owing to the high compressibility, low shear strength, and poor permeability of such clay types. These characteristics often result in bearing capacity failure and excessive settlement, posing significant challenges to construction projects. Therefore, the study investigates the strength enhancement of expansive clay soil with the inclusion of various percentages and combinations of silica fume (SF) and lime (L). Hence, the mechanical characteristics of various mix ratios of SF and L are examined via the standard Proctor, and unconfined compressive strength (UCS). The samples were treated for 1, 7, 14 and 30 days and examined under the UCS tests. The experimental results show that the strength of the expansive clay significantly rises with the inclusion of SF and L at dissimilar mix ratios and curing days. The mixture of SF and L resulted in a significant strength increment of the kaolinite clay soil up to 80.22%.

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Section: Unconfined Compression Testsupporting

confidence: 87%

Stabilization of Expansive Soil using Silica Fume and Lime

Zaini,

Hasan

2024

Constr.

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“…While at 28 days and 90 days, the compressive strength of concrete prepared using UFS containing 20% FA activated with 4% sodium oxide equivalent (Na 2 O-E) of sodium sulphate (NS) reached up to 41.5 MPa and 60.8 MPa, respectively, as shown in Fig. 16. In comparison with the typical alkaliactivated system, CO 2 emissions from sodium silicateactivated slag/FA were reduced to 53-72 kg/t, a reduction of 45-64 per cent [73].…”

Section: Ultra-fine Slagmentioning

confidence: 95%

“…According to "CemWeek research's 2020 update of the Global Ground Granulated Blast Furnace Slag Market Report and Forecast", total amount of GGBS production is about to reach 269 million tonnes between 2020 and 2025, while fly ash production which was 225 million tonnes in year 2020 would also drastically increase [15]. The silica fume produced globally every year is around 1 million tonnes [16], while by-products such as metakaolin, ferrochrome slag, and ultra-fine slag contribute to the remaining portion of industrial wastes produced, as shown in Fig. 3a.…”

Section: Introductionmentioning

confidence: 99%

“…2 a Global cement and waste produced; b classification of wastes produced [12][13][14] Fig. 3 a Industrial waste produced; b agricultural and food wastes produced [15][16][17][18][19][20][21] system when it is calcined and uncalcined. The graphical abstract representing the present study carried out for agroindustrial-based wastes used as SCM or AAB materials, and its effect after calcination is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

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Agro-industrial-based wastes as supplementary cementitious or alkali-activated binder material: a comprehensive review

Blesson

Rao

2023

Innov. Infrastruct. Solut.

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An attempt to shed light on the use of agro-industrial-based wastes as supplementary cementitious material (SCM) or as alkali-activated binder (AAB) material is mainly focused in this review paper. The SCM or AAB acts as a suitable replacement for cement, as the cement manufacturing tends to contribute to 8–10% of global CO2 emissions. To gain acceptability in the construction industry, diverse agro-industrial-based wastes must demonstrate their potential as precursors in AAB or as SCM. The binder materials discussed among the agricultural wastes are rice husk ash, olive waste ash, and coconut-based waste ash, and the industrial wastes are ground granulated blast furnace slag, fly ash, and ultra-fine steel slag. The paper also analyses the effects of calcined and uncalcined agro-industrial-based wastes on pozzolanic properties of binder system. It is clear from the studies that the calcined wastes tend to provide greater reactivity compared to the uncalcined wastes, that helps in early strength development in the binder system. The review findings indicate that the agro-industrial-based wastes provide pozzolanic and hydraulic properties, thereby making them suitable as an AAB or as a SCM.

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“…This method aims to meet the specific needs of well-graded soil, which ultimately improves the properties of the soil [19], [20][21][22]. Chemical stabilization of soil is the process of adding soil stabilizer admixture such as cement, lime or industrial wastes with the clay soil to improve the characteristics of soft clay, which its durability and shear strength [4], [23][24][25]. In this research, palm oil fuel ash (POFA) and lime are mixed into soft clay to enhance its strength properties.…”

Section: Introductionmentioning

confidence: 99%

Strength of Kaolinitic Clay Soil Stabilized with Lime and Palm Oil Fuel Ash

Zaini,

Hasan,

Md Jariman

2024

Constr.

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The use of palm oil fuel ash (POFA) mixed with lime as a catalyst in soil stabilization can significantly improve the stability of problematic soils and improve their engineering properties. Problematic soils can obstruct the construction process due to its low strength and low bearing capacity. In this study, various laboratory tests were carried out to determine the engineering properties of the soil’s mixture which includes Atterberg limit, particle size distribution, compaction, and unconfined compression test. 4%, 8% and 12% POFA were mixed with 6% hydrated lime to stabilized the kaolinitic clay soil at different curing days (1, 7, 14, and 30 days). Compared to untreated kaolin, the addition of POFA plus lime resulted in higher undrained shear strength. The maximum undrained shear strength (USS) is 32.68kN/m2, which was obtained on the 30th day of curing with the optimal mixture of stabilized kaolin which is kaolin mixed 6% of lime and 12% of POFA. The unconfined compressive strength increased by 185.04% compared to the unconfined compressive strength of untreated kaolinitic clay with a value of 65.36 kN/m2. This proves that kaolin stabilized with lime and POFA can increase the strength parameters of clay, thus reducing construction costs for soil stabilization and reducing environmental issues.

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Effect of Silica Fume as a Waste Material for Sustainable Environment on the Stabilization and Dynamic Behavior of Dispersive Soil

Cited by 26 publications

References 46 publications

Stabilization of Expansive Soil using Silica Fume and Lime

Stabilization of Expansive Soil using Silica Fume and Lime

Agro-industrial-based wastes as supplementary cementitious or alkali-activated binder material: a comprehensive review

Strength of Kaolinitic Clay Soil Stabilized with Lime and Palm Oil Fuel Ash

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