Utilization of tailings from tungsten mine waste as a substitution material for cement

Choi, Yun Wang; Kim, Yong Jic; Choi, Ook; Lee, Kwang Myong; Lachemi, Mohamed

doi:10.1016/j.conbuildmat.2009.02.006

Cited by 94 publications

(32 citation statements)

References 12 publications

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“…4. Bulk density of fresh concrete was tested according to SRPS EN 12350-6 standard and ranged from 2300 to 2370 kg/m 3 . In addition to this testing, the testing of entrained air in fresh concrete was performed according to SRPS EN 12350-7 standard.…”

Section: Properies Of Fresh Concretementioning

confidence: 99%

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The influence of tailings and cement type on durability properties of self-compacting concrete

Janković¹,

Šušić²,

Stojanović³

et al. 2017

Teh. vjesn.

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Preliminary communicationIn order to examine the differences in chemical composition and the possibility of using mine tailings in mortar and concrete production, samples were taken from the landfill and directly from the production. Tailings test results showed no pozzolanic activity and that its application in concrete can be only a partial replacement of aggregate. This paper presents the possibility of using tailings in self-compacting concrete made with Portland cement and sulphate resistant cement. Concrete specimens in which the aggregate fraction 0/4 mm was replaced with 10 and 20 % of tailings were examined. The resistance to freezing and thawing with and without de-icing salts is used as an indicator of concrete durability. Keywords: CEM I; CEM III; durability; self-compacting concrete; tailings Utjecaj jalovine i vrste cementa na trajnost samougrađujućeg betonaPrethodno priopćenje Da bi se ispitala razlika u kemijskom sastavu i mogućnost primjene jalovine iz rudnika u proizvodnji žbuke i betona uzeti su uzorci s deponija i direktno iz proizvodnje. Nijedan uzorak nije pokazao pucolansku aktivnost. Iz tog razloga, ovaj materijal je moguće koristiti samo kao dkelimičnu zamenu za agregat. U ovom radu je prikazana mogućnost uporabe jalovina u samougrađujućem betonu pripremljenim s portland cementom i sulfatno otpornim cementom. Ispitivani su betonski uzorci u kojima je frakcija agregata 0/4 mm zamijenjena s 10 i 20 % jalovine. Kao pokazatelj trajnosti betona uzete su otpornosti prema zamrzavanju i odmrzavanju sa i bez soli za odmrzavanje.

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Section: Properies Of Fresh Concretementioning

confidence: 99%

“…Choi et al [3] presents the feasibility of incorporating tailings from tungsten mine waste (TTMW) and ground granulated blast-furnace slag (GBFS) in the development of mortar with acceptable properties. The study showed that increasing the TTMW content in mortar mixes decreased both flowability and compressive strength.…”

Section: Introductionmentioning

confidence: 99%

The influence of tailings and cement type on durability properties of self-compacting concrete

Janković¹,

Šušić²,

Stojanović³

et al. 2017

Teh. vjesn.

View full text Add to dashboard Cite

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“…The Mn sludge was thus blended with ordinary Portland cement (OPC) and pulverised fuel ash (PFA) in appropriate proportions to prepare a cement specimen. PFA was more suitable, as it was able to improve the flow and the mechanical properties of the specimen (Choi et al, 2009). The values of the compressive and flexural strengths of the specimens prepared with different ratios of Mn sludge and OPC are shown in Table 11.…”

Section: Mn Sludge Reuse For Cement Materialsmentioning

confidence: 99%

Pollution control and metal resource recovery for acid mine drainage

et al. 2014

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“…However, most of them are not disposed and occupy a great deal of lands yet [7,8] . These solid waster materials begin to contaminate soil, water and air in the surrounding areas [9,10] . Therefore, it's of great signifi cance by applying CG and CT to the production of cement industry so as to protect our environment.…”

Section: Introductionmentioning

confidence: 99%

Utilization of coal gangue and copper tailings as clay for cement clinker calcinations

Qiu

Luo

Shi

et al. 2011

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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In order to avoid environmental pollution from Coal gangue (CG) and copper tailings (CT), the utilization as cement clinker calcinations was experimentally investigated. Low-calcium limestone was also selected as another raw material. The clinker component and microstructure were analyzed by XRD and SEM. The experimental results showed that qualifi ed cement clinker could be generated by substituting CG and CT compound for clay. While mixed with high-calcium limestone and low-calcium limestone, the calcinations temperature were 50 ℃ or 100 ℃ lower than that of clay. CT and CG contain oxygen-rich minerals and potential of geological rock energy. The energy of CG performs functions and drops down sintering temperature. The calcination time was shortened and the clinker sintering coal consumption reduced while substituting CG and CT for clay, and also served the reutilization of low-calcium limestone, CG and CT.

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Utilization of tailings from tungsten mine waste as a substitution material for cement

Cited by 94 publications

References 12 publications

The influence of tailings and cement type on durability properties of self-compacting concrete

The influence of tailings and cement type on durability properties of self-compacting concrete

Pollution control and metal resource recovery for acid mine drainage

Utilization of coal gangue and copper tailings as clay for cement clinker calcinations

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