DOI: 10.1016/j.conbuildmat.2022.129973 Corpus ID: 254520714; Mechanical activation of lead–zinc mine tailings as a substitution for cement in concrete construction @article{Saedi2023MechanicalAO, title={Mechanical activation of lead–zinc mine tailings as a substitution for cement in concrete construction}, author={Alieh Saedi and Ahmad Jamshidi …
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The raw material (RM) used in this study was the roasted lead-zinc tailings, which was the cinder obtained from the oxidation roasting of the lead-zinc tailings in the Fankou lead and zinc mine (Lei et al., 2015). The main mineral in the RM is hematite, which was generated from the oxidation of pyrite in the lead-zinc tailings.
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were all lead-zinc tailings or iron or e tailings, the variation content of SiO 2 is 15.50-69 .9 2 in the lead-zinc tailings or 24.19- 75 .23 in the iron ore tailings.
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This paper reviews the progress of utilizing lead–zinc tailings as building materials and mainly summarizes the status of lead–zinc tailings in cement, geopolymer, concrete, building brick ...
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There are some disposal methods such as tailing dams, dry disposal, in-pit disposal, submarine, and riverine tailings disposal, co-disposal of tailings, and paste technology that have been used in the mining industry for a long time [7], [8], [9].Although the most widely used of these methods is tailing dams, this method has many disadvantages in terms of cost, …
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At present, the comprehensive utilization of lead–zinc tailings mainly has two aspects. First, lead–zinc tailings are selected as secondary resources to recover the valuable components and improve the recovery rate. The second is the direct utilization of lead–zinc tailings, mainly including the production of building materials and ...
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Due to the increasing output and toxicity of heavy metals, the pollution problems of lead-zinc tailings (LZTs) need to be solved urgently. This paper investigated the properties and heavy metal ...
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Lead–zinc tailings are the typical solid wastes in mines with high yield and low utilization rates in some countries. They are mainly stockpiled in tailings reservoirs, occupying massive land resources and threatening the …
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The accumulation of lead–zinc tailings will cause a series of problems, including geological disasters and environmental pollution. Efficient secondary utilization of lead–zinc tailings is crucial. In this study, the activity of lead–zinc tailings was stimulated by thermal activation. The optimal thermal activation parameters are a thermal activation temperature of …
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Serious heavy metals pollution was characterized in the lead/zinc mine tailings dam and surrounding soils, as well as copper slag disposal sites. This study investigates the efficacy of modified granulated copper slag (MGCS) as a partial replacement of ordinary Portland cement (OPC) for lead/zinc mi …
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If a reasonable large-scale utilization of lead–zinc tailings sand can be achieved, it can bring considerable economic and environmental benefits. (2) By incorporating a dosage of 30% of the lead–zinc tailings sand, the workability and splitting tensile strength of the radiation shielding concrete can be improved. Moreover, this dosage can ...
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AbstractThere are large volumes of lead-zinc tailings (LZT) produced in China and elsewhere in the world. LZT disposal to the landfill is problematic and causes many environmental issues. ... C., B. Yan, T. Chen, S. X. Quan, and X. M. Xiao. 2015. "Comprehensive utilization of lead–zinc tailings, part 1: Pollution characteristics and ...
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The research reported here was designed to investigate the effects of SMC incorporation on selected physical, physico-chemical and chemical properties of lead–zinc tailings and to determine if application of SMC is useful for promoting vegetation growth on lead/zinc mine tailings. 2. Methods2.1. Experimental set-up
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Efficient secondary utilization of lead–zinc tailings is crucial. In this study, the activity of lead–zinc tailings was stimulated by thermal activation. The optimal thermal activation ...
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The resource utilization of tailings will relieve the pressure on resources and contribute to the realization of China's 'Carbon Peaking and Neutrality Goals,' with a significant benefit of emission reduction. ... flow analysis in recent years has focused on the study of primary resources, such as indium, neodymium, nickel, cobalt, lead ...
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The pozzolanic activity of lead–zinc tailings (LZTs) was enhanced through mechanical grinding, enabling the preparation of a lead–zinc tailing based composite cementitious material (LZTCC) by combining LZTs with ground granulated blast furnace slag (GGBS), steel slag (SS), and desulfurized gypsum (DG). The compressive strength of LZTCC was evaluated …
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Resource Utilization of Lead-zinc Tailings. Multipurpose Utilization of Mineral Resources, 2017, (1): 12-12. doi: 10.3969/j.issn.1000-6532.2017.01.003. WEI Li-ning, JIANG Wu, ZHUO Ou, LI Ning, PENG Nan …
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Request PDF | Utilization of spent mushroom compost for the revegetation of lead-zinc tailings: Effects on physico-chemical properties of tailings and growth of Lolium perenne | In an attempt to ...
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The tailings are also very diverse in mineral phases even in the lead-zinc tailings. Figure 2 presents the XRD pattern of lead-zinc tailings coming from different resources.
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Firstly, lead-zinc tailings and borax are used to melt and temper lead slag to improve its sintering performance. At 1450 °C, the lead slag melted and tempered by adding 40% lead-zinc tailings and 4% borax has good fluidity in the molten state. ... Therefore, realizing a harmless and resourceful utilization of lead slag is of urgent concern ...
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Lead–zinc tailings are the typical solid wastes in mines with high yield and low utilization rates in some countries at present. They are mainly stockpiled in tailings reservoirs, occupying...
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Yi Longsheng, He Lei, Wang Zexiang. Resource Utilization of Lead-zinc Tailings[J]. Multipurpose Utilization of Mineral Resources, 2017, (1): 12-15. doi: 10.3969/j.issn.1000 …
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Efficient secondary utilization of lead–zinc tailings is crucial. In this study, the activity of lead–zinc tailings was stimulated by thermal activation. The optimal thermal activation ...
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As a part of this comprehensive review, beyond the general MT characterization, Table 1, Table 2, Table 3 will provide a comparative analysis of the top five MTs in terms of contribution to global tailings: copper, gold, iron, phosphate, and lead-zinc, with 46%, 21%, 9%, 4%, and 3%, respectively [33].
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The comprehensive utilization rate of tailings between 2014 and 2019 ranged from 26.51% to 30.99%, Fig. 1 shows the tailings quantity data in recent years [1]. The utilization of tailings is severely limited because of the high energy consumption and pollution associated with traditional cement-tailing backfill. ... The lead–zinc tailings ...
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A critical review on the migration and transformation processes of heavy metal contamination in lead-zinc tailings of China ... low utilization efficiencies, and large storage volumes. According to statistics, the cumulative storage of Chinese tailings reaches a staggering 22.26 billion tons, with an annual discharge surpassing 1.6 billion tons
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In an attempt to promote sustainable vegetation cover on metalliferous tailings, a randomized factorial greenhouse trial of six-month duration was established to determine the effect of spent mushroom compost (SMC) amendment on the physical and chemical properties of the predominantly lead/zinc tail …
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The majority of the literature speaks about the use of copper–gold, gold–silver, gold, copper–zinc and copper tailings in mine paste backfill. However, only a few previous studies have reported the utilization of tantalum–niobium ore …
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Now, this review begins with the utilization of Lead and Zinc Tailings as an alternate material in the concrete production by replacing Cement and Fine aggregate. The previous studies shows that tailings have been used as an alternate material for cement and sand, the compressive strength of the material with Lead and Zinc is increased while ...
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The application provides a comprehensive utilization method of lead-zinc smelting tailings, and relates to the field of solid waste disposal. The method comprises the following steps: mixing raw materials including lead smelting slag, zinc leaching slag, iron vitriol slag and red mud to obtain a mixture; desulfurizing and smelting the mixture to obtain desulfurized slag and desulfurized and ...
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