Engineering Properties of Silty Clay Stabilized with Calcium Carbide Residue

Kampala, Apichit; Horpibulsuk, Suksun

doi:10.1061/(asce)mt.1943-5533.0000618

Cited by 120 publications

(23 citation statements)

References 56 publications

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“…Whilst over time, the pozzolanic reaction produces more cementitious materials of CSH and CSAH which coating the surface of soil particles. Both reactions are contributed to increasing the fraction of coarse-grained particles after treatment [47,48]. Similar trends in changing the PSD are consistent with previous studies [22,31,49].…”

Section: Particle Size Distribution (Psd)supporting

confidence: 92%

A Comparative Evaluation of Cement and By-Product Petrit T in Soil Stabilization

et al. 2019

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This study presents a comparison between the effectiveness of adding low binder amounts of industrial by-product Petrit T as well as cement to modify and improve fine-grained soil. Binder amount was added by soil dry weight; cement at 1%, 2%, 4% and 7% and Petrit T at 2%, 4% and 7%. The unconfined compressive strength (UCS) was used as an indicator of soil strength. In addition, the consistency limits, laser particle size analysis, and pH tests were also conducted on the treated soil. The samples were cured at 20 • C for different periods from 7 to 90 days before testing. Results indicate that cement is more effective at improving the physical and engineering properties of the treated soil. Soil plasticity index decreases after treatment and with time. Liquidity index and the water content to plastic limit ratio are introduced as new indices to define the improvement in the workability of treated soil. Soil particle size distribution is changed by reducing the clay size fraction and increasing the silt size fraction after treatment. The findings confirm that adding small binder contents improve soil properties, which subsequently reduce the environmental threats and costs that are associated with using a high amount of binder. Enhanced soil strengths, reduced soil plasticity and swelling potential are the most desirable outcomes from the treatment. For certain soil stabilization applications, the cost of the binder itself could result in a considerable saving in the overall costs of the project [24]. Petrit T is a waste product from sponge iron production [18]. It is considered a cheap by-product material [25]. Therefore, in order to decrease the environmental impact and costs, finding new binders as alternatives to Portland cement is important. Thus, there is a need to compare the effectiveness of using cement and by-product Petrit T as stabilizing agents.This paper presents a comparative evaluation between using Portland cement and by product Petrit T to enhance the physical and mechanical properties of sandy clayey silt soil. An extensive experimental program was carried out in this study, including tests of unconfined compressive strength, laser particle size, consistency limits, and pH tests, using various binder amounts and curing periods. Materials and MethodsThe samples used in this study were prepared from a natural soil from Gothenburg, south west coast of Sweden. The soil consists of 55% silt, 29% fine sand and 16% clay. The natural water content is 30%, the liquid limit 37% and the plastic limit 20%. The optimal moisture content is 12%, and the proctor density is 1.97 t/m 3 . The ignition test showed that the soil has 4% organic content. Therefore, according to the Swedish standard, natural soil is classified as sandy clayey silt (saclSi) with low organic content [26][27][28].Natural soil was firstly homogenized and then mixed with Petrit T as well as the cement in various percentage from 1 to 7% as dry mass of soil and cured for 7, 14, 28, 60 and 90 days before testing.Unconfined compressive tests (U...

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Section: Particle Size Distribution (Psd)supporting

confidence: 92%

A Comparative Evaluation of Cement and By-Product Petrit T in Soil Stabilization

et al. 2019

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“…In addition to strengthening/stabilization, FA significantly improves the resistance of soil to the absorption of water. Various OPC‐free CCR–FA mixtures were trialed to enhance the strength of a problematic silty clay in Thailand, for problematic soil stabilization, soft marine clay stabilization, and for the manufacture of nonbearing masonry units . Nonbearing masonry units were also experimentally made from CCR in mixtures with WTS; a type of debris with a high content of SiO 2 .…”

Section: Sustainable Access Usage and Recycling Of Calcium Carbidementioning

confidence: 99%

“…Geopolymerization is possible even in the case of glass powder as as ource of silica. [166] In addition to strengthening/stabilization,F As ignificantly improves the resistance of soil to the absorption of water.V arious OPC-free CCR-FAm ixtures weret rialed to enhance the strength of ap roblematic silty clay in Thailand, [150] for problematic soil stabilization, [150,167] soft marine clays tabilization, [168] and for the manufacture of nonbearing masonry units. [169] Nonbearing masonry units werea lso experimentally made from CCR [150] FA [150] Silty clay [150] Hydrated lime [150] BA [151] Rice husk [152] Biomass ash [153] OPC [154] WTS [155] Bottoma sh [156] [155] The CCR-FAm ixtures provedt ob es trong enough to transform demolition waste (concrete aggregates,c rushed bricks, etc.)…”

Section: Calcium Carbidef or Ahealthyenvironment And Civil Engineeringmentioning

confidence: 99%

Calcium‐Based Sustainable Chemical Technologies for Total Carbon Recycling

2019

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Calcium carbide, a stable solid compound composed of two atoms of carbon and one of calcium, has proven its effectiveness in chemical synthesis, due to the safety and convenience of handling the C≡C acetylenic units. The areas of CaC2 application are very diverse, and the development of calcium‐mediated approaches resolves several important challenges. This Review aims to discuss the laboratory chemistry of calcium carbide, and to go beyond its frontiers to organic synthesis, life sciences, materials and construction, carbon dioxide capturing, alloy manufacturing, and agriculture. The recyclability of calcium carbide and the availability of large‐scale industrial production facilities, as well as the future possibility of fossil‐resource‐independent manufacturing, position this compound as a key chemical platform for sustainable development. Easy regeneration and reuse of the carbide highlight calcium‐based sustainable chemical technologies as promising instruments for total carbon recycling.

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“…Research concerning fly ash and lime for soil improvement has been conducted in recent decades by many researchers [9][10][11][12][13][14][15]. The physical and chemical performance of both short-term and long-term reactions in soil-lime-fly ash mixtures has been reported in the literature [16][17][18][19]. The previous studies have discussed the effects of the temperature and curing period and the proportion of lime and fly ash on the unconfined compression and tensile strength of soil.…”

Section: Introductionmentioning

confidence: 99%

Parametric study on the behaviour of bagasse ash-calcium carbide residue stabilized soil

Hatmoko

Suryadharma

2018

MATEC Web Conf.

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Abstract.A series of experiments including unconfined compression tests, three-axial tests, compaction tests, and split tensile tests were undertaken to investigate the influence of compaction parameters on the behaviour of bagasse ash-calcium carbide residue stabilized soil. A preliminary study on soil with the addition of 4%, 6%, 8%, 10%, and 12% calcium carbide residue established that the lime fixation point (LFP) was 4%. Then 9% bagasse ash was added to soil with 4% calcium carbide residue, and the cation exchanges and pozzolanic reactions were investigated. The addition of calcium carbide residue to bagasse ash stabilized soil caused short-term changes due to cation exchange reactions, including an increase in the friction angle and cohesion in the stabilized soil. In addition, due to the short-term reaction, the maximum stiffness in three-axial tests occurred in the samples moulded with less than their optimum moisture content (OMC), whereas the peak strength occurred in the samples moulded at their OMC. After a 28-day curing period, pozzolanic reactions improved significantly the three-axial peak strength and stiffness of the stabilized soil, and the maximum three-axial shear strength and stiffness occurred in the samples prepared below their OMC.

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Engineering Properties of Silty Clay Stabilized with Calcium Carbide Residue

Cited by 120 publications

References 56 publications

A Comparative Evaluation of Cement and By-Product Petrit T in Soil Stabilization

A Comparative Evaluation of Cement and By-Product Petrit T in Soil Stabilization

Calcium‐Based Sustainable Chemical Technologies for Total Carbon Recycling

Parametric study on the behaviour of bagasse ash-calcium carbide residue stabilized soil

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