Geotechnical characterisation of zinc tailing waste material for road construction

Sinha, Anil K.; Havanagi, Vasant G.; Sreekantan, Parvathi Geetha; Chandra, Satish

doi:10.1080/17486025.2021.1990420

Cited by 10 publications

(3 citation statements)

References 44 publications

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“…Excluded from the present review were studies employing zinc, materials with high ZnO contents or zinc tailing waste as filler, ZnO as a modifier of hydraulic cements, soil stabilizers, etc. (e.g., [1,21,[32][33][34][35][36][37]). Also excluded were articles in which asphalt binders were modified with ZnO-like materials, such as Zinc dialkyl dithiophosphate or zinc diethyldithiocarbamate (e.g., [38][39][40]).…”

Section: Methodsmentioning

confidence: 99%

The Use of Zinc Oxide in Asphalts: Review

2023

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Zinc oxide (ZnO) is a wide-gap semiconducting material which is chemically stable at high temperatures and has been shown to be compatible with asphalt binders. Additionally, semiconducting nanoparticles such as ZnO could help to improve urban air quality. This has encouraged the use of this material as a binder and asphalt mix modifier. A review on the use of ZnO as an asphalt binder modifier was conducted in this study. Based on the review which we carried out, the following were mainly synthesized and described: the content of ZnO as a modifier, the mixing processes of the binder and the ZnO, the manufacturing process of the modified mix, the type of asphalt binder and/or modified mix, the tests carried out, general conclusions, and environmental effects. ZnO micro-particles increase the aging resistance of the asphalt binder (mainly to ultraviolet radiation (UV)). ZnO tends to increase rutting resistance and adhesion with aggregates, improving resistance to moisture damage. It also tends to improve binder fatigue resistance. At low service temperatures, the performance of ZnO as a modifier is unclear, and further studies should be performed. Few studies have evaluated the effect of ZnO on the environment when it is used as an asphalt binder modifier. Future studies should evaluate the effect of this technology on the environment, perform economic analyses, evaluate the physical–chemical interaction of the modified binder with the aggregate, and measure the long-term properties of asphalt mixtures. ZnO is viewed as an environmentally friendly material and as a promising modifier of asphalt binders for pavement construction.

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Section: Methodsmentioning

confidence: 99%

The Use of Zinc Oxide in Asphalts: Review

2023

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“…al., (2006) estimate that the European Union generates over the 0.60 million tonnes of zinc residual each year. According to Sinha et al (2013), India currently produces 4 lac metric tons of jarosite per year. The largest smelting facility in India has a 3.49million-ton capacity and is called Hindustan Zinc Limited (HZL) in Rajasthan.…”

Section: Introductionmentioning

confidence: 99%

Improving sustainability of concrete construction with jarosite-based recycled aggregate concrete

Khan,

Ali,

Khan

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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In this study, the impacts of substituting jarosite for a portion of the cement in recycled aggregate concrete (RAC) were examined. In place of some of the cement in concrete, jarosite, a waste product of the zinc manufacturing sector, has been used. The performance of Jarosite in recycled aggregate concrete has been investigated experimentally in terms of the fresh properties of the concrete and the properties of hardened concrete in terms of mechanical and durability properties, such as compressive strength, split tensile strength, water absorption and non-destructive test of the concrete. The technique uses five different mixes in total, one of which is the control mix, and rest was made by substituting jarosite for a portion of the cement in amounts of 0, 10, 15, and 20% in RAC. It was discovered that adding jarosite did not significantly change the properties of fresh concrete because they were still well within the required range. The mechanical qualities of RAC were found to improve when the percentage of Jarosite was increased by up to 15%, according to laboratory tests. Additionally, compared to the control concrete mix, the durability qualities of the Jarosite mixture performed better, and the moisture absorbing capabilities also enhanced. As a result of the study, it is possible to utilise up to 15% of jarosite in place of cement in recycled aggregate concrete without sacrificing the concrete’s engineering quality.

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“…Moreover, this solid waste provides sufficient performance and is also economical for pavement construction [8]. Sinha et al [9] explore the possibility of using Zinc tailing waste material in road construction and filling. As a result, the geotechnical characterization revealed that the cement stabilized tailing can be used in sub-base layer and can save about 170 mm thickness of the aggregate layer.…”

Section: Introductionmentioning

confidence: 99%

Field and Economic Studies on Mine Waste: Sustainable Reuse as Aggregates for Low Traffic Pavement Structure

et al. 2022

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The phosphate extraction and processing has followed a traditional linear consumption model, where wastes are continuously produced and surface land is filled in rock piles. Thus, to promote a circular economy in a mining context, more eco-friendly and sustainable solutions at the regional level are needed. This paper deals with the potential utilization of phosphate screening waste rock 0–100 mm (SWR) as alternative aggregates for pavement applications. Detailed in situ and laboratory tests have been made for SWR characterization, and the practical modalities of implementation have been defined. The findings proved that SWR (10–100 mm) materials can be successfully used without treatment in capping layer construction for low-volume traffic pavement projects. Due to its high apatite content, the remaining fraction (0–10 mm) can be exploited to recover the residual phosphate using the processing method that is currently followed by the mining company. Furthermore, the environmental investigations showed that SWR does not present any potential contamination risk to the surrounding environment. The economic feasibility analysis confirmed the workability of SWR reuse in a radius of 100 km around their dumps due to its lower cost compared to conventional aggregates. This simple amendment may ensure a smooth transition from a current linear extractive approach to a circular economy.

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Geotechnical characterisation of zinc tailing waste material for road construction

Cited by 10 publications

References 44 publications

The Use of Zinc Oxide in Asphalts: Review

The Use of Zinc Oxide in Asphalts: Review

Improving sustainability of concrete construction with jarosite-based recycled aggregate concrete

Field and Economic Studies on Mine Waste: Sustainable Reuse as Aggregates for Low Traffic Pavement Structure

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