Sustainable Applications for Utilizing Antimony Tailing Coarse Aggregate (ATCA) in Concrete: Characteristic of ATCA and Toxicity Risks of Concrete

Wang, Jianqun; Li, Long; Zhang, Longwei; Li, Bei; Deng, Renjian; Shi, Defeng

doi:10.3390/ma14195480

Cited by 7 publications

(5 citation statements)

References 39 publications

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“…Many scholars have dug down deep into this field. For example, Li et al [30] and Wang et al [24] used antimony tailings as coarse aggregate instead of lifting coarse aggregate in conventional concrete and explored its indices in terms of strength, stability, and toxic leaching aspects. When antimony tailings were used as coarse aggregate, the specimens had better tensile strength and compressive modulus of elasticity than the concrete using a natural rock as coarse aggregate; the cubic compressive strength, splitting tensile strength, and prismatic compressive elastic modulus are 1.31, 2.22, and 1.40 times that of natural rock, respectively, but their alkali activity and cracking sensitivity were less compared to conventional concrete.…”

Section: Using Antimony Tailings To Prepare Raw Materials For Buildin...mentioning

confidence: 99%

Present Situation and Research Progress of Comprehensive Utilization of Antimony Tailings and Smelting Slag

Yu,

Wang,

Zheng

et al. 2023

Sustainability

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The production process of antimony produces a large amount of solid waste, such as waste rock in mining, tailings in the beneficiation, metallurgical slag in the smelting, and so on. At present, most of these solid wastes are currently in storage, and the storage of a large amount of solid wastes is not only harmful to the local ecological environment but also a waste of resources. In view of this situation, this paper will take antimony tailings and metallurgical slag as examples and summarize them according to their different treatment methods. The comprehensive utilization of antimony tailings is mainly recovering metals by beneficiation and metallurgy and using antimony tailings as building materials and underground filling materials, while the comprehensive utilization method of antimony metallurgical slag is mainly the recovery of valuable metals by pyrometallurgy or hydrometallurgy or the stabilization technology. This paper summarizes the advantages and disadvantages of different treatment methods and puts forward the prospect of future research directions for the treatment of different metallurgical slags and tailings.

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Section: Using Antimony Tailings To Prepare Raw Materials For Buildin...mentioning

confidence: 99%

Present Situation and Research Progress of Comprehensive Utilization of Antimony Tailings and Smelting Slag

Yu,

Wang,

Zheng

et al. 2023

Sustainability

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show abstract

“…It can be seen from the test results that the frost-resistant performance of concrete with ATCA was slightly better. The factor for better frost-resistant performance of ATCA concrete resulted from the superior water absorption and firmness of ATCA [35]. terials 2021, 14, x FOR PEER REVIEW 9 of The frost resistance ability of concrete is expressed by surface peeling and relativ dynamic modulus of elasticity, which is measured by the ultrasonic method [55].…”

Section: Specimen Designmentioning

confidence: 99%

“…It ca be seen from the test results that the frost-resistant performance of concrete with ATC was slightly better. The factor for better frost-resistant performance of ATCA concrete r sulted from the superior water absorption and firmness of ATCA [35].…”

Section: Specimen Designmentioning

confidence: 99%

“…In addition, tungsten ore tailing [31], gold ore tailing [32], zinc ore tailing [33], and molybdenum ore tailing [34] were also reported for reusing in concrete. Wang investigated the feasibility of utilizing antimony tailing waste rock (ATWR) for a practical project, providing a new way for utilizing ATWRs [35]. It is demonstrated that all of the quality control indices of antimony tailing coarse aggregate (ATCA) meet the requirements of the current industry standards of China.…”

Section: Introductionmentioning

confidence: 99%

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Strength and Durability Properties of Antimony Tailing Coarse Aggregate (ATCA) Concrete

Wang

Zhang

et al. 2021

Materials

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Antimony (Sb) is a trace element applied widely in modern industry. A large number of tailing solid wastes are left and accumulated in the mining area after purifying the precious antimony from the antimony ores, causing serious pollution to the environment. The major aim of this study is to investigate the feasibility of utilizing antimony tailing coarse aggregate (ATCA) as a complete substitute for natural coarse aggregate (NCA) in high-strength concrete. Concrete specimens with 25%, 50%, 75%, and 100% ATCA replacing the NCA in conventional concrete were prepared for evaluating the performance of ATCA concrete. The investigators find that ATCA concrete has good workability, and the mechanical properties and long-term behavior (shrinkage and creep) of ATCA concrete with all replacement levels are superior to those of NCA concrete. The durability indices of ATCA concrete, such as the frost-resistant, chloride permeability, and resistance to carbonation, are better than those of NCA concrete. While the alkali activity and cracking sensitivity behavior of ATCA concrete seem to be decreased, nevertheless, the difference is not significant and can be neglected. The researchers demonstrate that all of the control indices of ATCA concrete meet the requirements of the current industry standards of China. Overall, ATCA can be used in concrete to minimize environmental problems and natural resources depletion.

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“…Over the past decade or so, the amount of construction waste has been on the rise. Many researchers have conducted numerous studies on the applicability of construction waste in construction projects [1][2][3][4][5][6][7]. RAC is a green concrete that replaces natural concrete aggregates (NCA) with some or all RCA to achieve sustainable building materials.…”

Section: Introductionmentioning

confidence: 99%

Nano-SiO2 Recycled Concrete Anti-Sulfate Performance and Damage Mechanism Research

et al. 2023

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The use of construction waste for concrete is an effective way to reduce the environmental burden while improving the sustainability of construction materials. Nano-SiO2 (NS) has excellent volcanic ash activity, which can effectively improve the strength of concrete. In this study, the synergistic effects of NS and 30% recycled concrete aggregate (RCA) on the mass loss, compressive strength, ultrasonic sound velocity values and microstructure of RAC after 25, 50, 75 and 100 repetitions of a dry–wet cycle (DWC) of sulfuric acid were investigated. The results show that NS has a significant role in improving RAC performance. The RAC specimens showed the lowest mass loss rate, the highest compressive strength, the lowest ultrasonic velocity value and the best resistance to sulfate erosion when the NS doping was 4%. Meanwhile, under CT and SEM, RAC with NS has lower porosity and higher hydration, which can effectively inhibit the crack generation and has stable volume growth within 0–50 repetitions of DWC. In addition, the addition of NS improves not only the microstructure of the substrate but also the interfacial transition zone (ITZ). When 4% NS was added, the porosity was the lowest and the durability improvement was the best performance. This study not only improves the production performance of RAC but also provides a strong reference for the integrated application of nanomaterials in concrete.

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Sustainable Applications for Utilizing Antimony Tailing Coarse Aggregate (ATCA) in Concrete: Characteristic of ATCA and Toxicity Risks of Concrete

Cited by 7 publications

References 39 publications

Present Situation and Research Progress of Comprehensive Utilization of Antimony Tailings and Smelting Slag

Present Situation and Research Progress of Comprehensive Utilization of Antimony Tailings and Smelting Slag

Strength and Durability Properties of Antimony Tailing Coarse Aggregate (ATCA) Concrete

Nano-SiO2 Recycled Concrete Anti-Sulfate Performance and Damage Mechanism Research

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