Strength of sustainable non-bearing masonry units manufactured from calcium carbide residue and fly ash

Horpibulsuk, Suksun; Munsrakest, Varagorn; Udomchai, Artit; Chinkulkijniwat, Avirut; Arulrajah, Arul

doi:10.1016/j.conbuildmat.2014.08.033

Cited by 70 publications

(14 citation statements)

References 34 publications

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“…In Thailand, approximately 21,500 tons CCR is produced annually and is mainly disposed in landfills, which causes a huge local environmental problem due to its high alkalinity [30]. Currently, some researchers have used the CCR with rice husk ash [31], bagasse ash [32], and FA [33][34][35][36] as new cementitious materials used in construction work. This is because its main reaction product is calcium silicate hydrate (C-S-H), which is similar to the hydration products of PC.…”

Section: Introductionmentioning

confidence: 99%

Strength development and durability of alkali-activated fly ash mortar with calcium carbide residue as additive

Hanjitsuwan

Phoo-ngernkham

et al. 2018

Construction and Building Materials

114

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The strength development and durability of alkali-activated fly ash (FA) mortar with calcium carbide residue (CCR) as additive cured at ambient temperature were investigated in this paper. CCR was used to partially replace FA as additional calcium in the alkali-activated binder system by a weight percentage of 0%, 10%, 20% and 30%. Sodium hydroxide and sodium silicate solutions were used as liquid alkaline activation in all mixtures. Test results show that the incorporation of CCR has an effect on the strength development of alkaliactivated FA mortar with CCR. The setting time of alkali-activated FA mortar with CCR has 2 decreased whereas its strength development has increased. This is further confirmed by XRD, SEM, and FTIR analyses, which show that the reaction products were increased when the alkali-activated FA incorporated with CCR. The highest 28-day compressive strength of alkali-activated FA mortar was found in the mix of 70% FA and 30% CCR, which is about 40.0 MPa. In addition, the resistances of alkali-activated FA mortar incorporated with CCR to tap water, 5% H 2 SO 4 solution, and 5% MgSO 4 solution are found to be superior to those of alkali-activated FA mortar without CCR as indicated by the relatively low strength loss. For the samples immersed in 5% H 2 SO 4 solution and 5% MgSO 4 solution for 120 days, the alkali-activated FA incorporated with 30% CCR showed a low strength reduction of around 71% and 53%, respectively.

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Section: Introductionmentioning

confidence: 99%

Strength development and durability of alkali-activated fly ash mortar with calcium carbide residue as additive

Hanjitsuwan

Phoo-ngernkham

et al. 2018

Construction and Building Materials

114

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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%

“…[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.) into building material.…”

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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“…However, the disposal of CCS pollutes the water resources and soil due to its chemical composition. In order to minimize its harmful effect on an environment, the use of CCS as a binder in concrete have been investigated [3][4][5][6][7]. Furthermore, it has been used in a preparation of organic [8] and inorganic materials (xonotlite) [9][10][11], flue gas desulfurization [12], CO 2 capture [13,14].…”

Section: Introductionmentioning

confidence: 99%

Taguchi Metodu ile Kalsiyum Karpit Cürufundan Kalıplama ve Kalsinasyon Yöntemleri Uygulanarak Kalsiyum Oksit Briketlerinin Hazırlanması

Altıner

2018

Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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As the disposal of calcium carbide slag (CCS) obtained a by-product during an acetylene gas process creates an environmental problem, this study aimed to use of CCS to prepare calcium oxide (CaO) briquettes for re-use in the production of calcium carbide (CaC 2). The influence of binder types (phosphoric acid (H 3 PO 4), molasses, and corn syrup), binder amount (1, 3, and 5%), briquetting pressure (20, 28, and 36 MPa), calcination temperature (800, 900, and 1000 o C), and calcination time (30, 45, and 60 min) on the strength value of CaO briquettes was investigated using the Taguchi approach. The highest compressive strength value of CaO briquettes was found to be 4.05 MPa. The stability and friability values of the final product were 92% and 8%, respectively. ANOVA analysis revealed that the contribution rate of production parameters on the strength value of CaO briquettes were as follows: (i) binder amount, (ii) binder type, (iii) briquetting pressure, (iv) calcination temperature, and (v) calcination time. The optimal production conditions were determined as follows: the amount of binder: 5%, briquetting pressure: 28 MPa, calcination temperature: 900 o C, and calcination time: 60 min. The obtained CaO briquettes provide a required strength value for re-use in the production of CaC 2 .

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Strength of sustainable non-bearing masonry units manufactured from calcium carbide residue and fly ash

Cited by 70 publications

References 34 publications

Strength development and durability of alkali-activated fly ash mortar with calcium carbide residue as additive

Strength development and durability of alkali-activated fly ash mortar with calcium carbide residue as additive

Calcium‐Based Sustainable Chemical Technologies for Total Carbon Recycling

Taguchi Metodu ile Kalsiyum Karpit Cürufundan Kalıplama ve Kalsinasyon Yöntemleri Uygulanarak Kalsiyum Oksit Briketlerinin Hazırlanması

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