Utilization of granulated lead slag as a structural material in roads constructions

Buzatu, Traian; Talpoş, Emilia; Petrescu, Mircea Ionuţ; Iacob, Gheorghe; Buzatu, Mihai

doi:10.1007/s10163-014-0297-z

Cited by 32 publications

(8 citation statements)

References 12 publications

(12 reference statements)

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“…For PC2, As is associated with soil parent materials [64], which can explain why the content of As in soils was higher than that in street dust. Cu is key component of building materials [65,66] and Hg is widely used in pesticides, such as thermometers [67,68,69]. Coal combustion is one of the main sources of Hg in Shanxi province [36,70].…”

Section: Discussionmentioning

confidence: 99%

Spatial Characteristics of Heavy Metals in Street Dust of Coal Railway Transportation Hubs: A Case Study in Yuanping, China

Liao

2018

IJERPH

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Coal is a vital basic energy source in China, and rail serving is its major mode of transportation. Heavy metals in street dust surrounding the coal railway do harm to the environment and pose a potential risk to human health. This paper aims to identify the effects of coal transportation hubs on heavy metals in street dust. The geoaccumulation index and ecological risk index were used to assess the contamination levels of the following elements in Yuanping, Shanxi: arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), nickel (Ni), lead (Pb), and zinc (Zn). The levels of contamination of these heavy metals in soils were compared to those in street dust, and the difference between the railway’s and mining’s impacts on dust’s heavy-metal concentrations was explored. The results indicated that Cr and Pb in street dust were mainly affected by coal railway transportation, and the interaction effect of coal railway transportation and mining was greater than either of them alone. A potential control and prevention zone for Cr and Pb extending 1 km to both sides of the railway was identified. This work proves that coal railway transportation has certain effect on heavy metals in street dust and provides a scientific approach for future environmental impact assessments of coal transportation via railway.

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Section: Discussionmentioning

confidence: 99%

Spatial Characteristics of Heavy Metals in Street Dust of Coal Railway Transportation Hubs: A Case Study in Yuanping, China

Liao

2018

IJERPH

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“…The possibility of using industrial by-products as integral substitutes of the natural aggregate in the production of cement bound granular materials for road foundations was also verified (Pasetto et al, 2015). In addition, utilization of granulated lead slag as a structural material in roads constructions is suitable under certain conditions (material for road base (subbase) under a waterproof coating such as asphalt, at least 0.5 meter above the phreatic water level) (Buzatu et al, 2015). Finally, utilization of steel slag as coarse aggregate substitute in surface courses appeared technically appropriate and could enhance the engineering properties of asphalt mixtures (Chen et al, 2016).…”

Section: Introductionmentioning

confidence: 93%

Characterization of the Zellidja Lead Smelter Slag (Eastern Morocco) in order to their Valorization in Civil Engineering

Moussaoui¹,

Alami²,

Aouraghe³

2019

J. Ecol. Eng.

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The Zellidja Lead Smelter Company (Eastern Morocco) was created by Jean Walter in 1939 for the purpose of transforming lead concentrates into pure metal. Its activity was always at the origin of the production of huge quantities of solid mining waste with granular aspect. Today, despite the definitive cessation of its production in 2012 due to the depletion of ore, millions of tons of slag are piled up between the back of the foundry and the watercourse of Oued El Heimer. This open-air storage site represents a significant environmental and economic risk resulting from the surface water and groundwater pollution. In addition, as part of the strengthening of the Moroccan construction sector and infrastructure (which requires enormous quantities of natural aggregates), studying the possibilities of using these by-products as building materials seems interesting. For these reasons, the objective of our research work is the characterization of Zellidja slag for their valorization in civil engineering. This valorization has three objectives: to solve the problem of the landfill of the mining waste, to search for an alternative material responding to the increased needs for granular materials and to protect the national patrimony in raw material. In order to ensure the feasibility of this valorization, these tailings were the subject of a complete characterization. The results of this characterization prove that these by-products with a granular aspect have interesting geometric, physical, chemical and mechanical characteristics favoring their valorization in concrete.

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“…Primary and secondary lead slag can be turned both in fine and coarse aggregates through a cement-based stabilization/solidification process [84]. It has shown a better grain size curve than sand itself, complying with the compressive strength requirements [85]. Alwaeli [86] has demonstrated that the incorporation of granulated lead-zinc slag in concrete works as a shield to the gamma radiation, so it would properly fit in laboratories construction where radiation are generally used.…”

Section: Metallurgical Industry By-productsmentioning

confidence: 99%

The Production of Sustainable Concrete with the Use of Alternative Aggregates: A Review

et al. 2020

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The concrete industry is a core element of the building sector, but it has to deal with the increasing attention on the environmental issues related to the production process: increasing energy efficiency and the adoption of alternative fuels or raw materials represent the most relevant solutions. The present work analyses physical, mechanical, and environmental performances of concrete incorporating residues derived from four main sources (construction and demolition waste, residues from waste treatment, metallurgical industry by-products, and others), as substitutes of either fine or coarse aggregates. Fine aggregates showed the highest number of alternatives and replacement level, with the relevant impact on concrete properties; coarse aggregates, however, always reach a complete replacement, with the exclusion of glass that highly affects the mechanical performance. Construction and metallurgical industry categories are the main sources of alternative materials for both the components, with ceramic and lead slag reaching a full replacement for fine and coarse aggregates.

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Utilization of granulated lead slag as a structural material in roads constructions

Cited by 32 publications

References 12 publications

Spatial Characteristics of Heavy Metals in Street Dust of Coal Railway Transportation Hubs: A Case Study in Yuanping, China

Spatial Characteristics of Heavy Metals in Street Dust of Coal Railway Transportation Hubs: A Case Study in Yuanping, China

Characterization of the Zellidja Lead Smelter Slag (Eastern Morocco) in order to their Valorization in Civil Engineering

The Production of Sustainable Concrete with the Use of Alternative Aggregates: A Review

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