Characterization and reuse of spent foundry sand in the production of concrete for interlocking pavement

Santos, Luis Fernando dos; Magalhães, Riscelly Santana; Barreto, S.S.; Santos, G. T. A.; Paiva, Fábio Friol Guedes de; Souza, Agda Eunice de; Teixeira, Silvio Rainho

doi:10.1016/j.jobe.2020.102098

Cited by 13 publications

(7 citation statements)

References 18 publications

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“…In the literature, a greater microaggregation was expected between the grains of a clayey soil compared to a sandy material, due to the presence of Al, Si, and Fe oxides [31,32]. This chemical adhesion (cohesion) can contribute to the formation of the waterproofing barrier observed in the clayey soil prototype of this research [32].…”

Section: Permeability Of Soil and Soil + 70% Wfs Prototypes And Leachate Volume Generatedmentioning

confidence: 67%

Waste foundry sand used to cover organic waste in landfills

Domingues

Ferreira

Pìres

2021

J Mater Cycles Waste Manag

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Waste foundry sand (WFS) is a waste generated during the molding of metal parts and primarily discarded in landfills, which generates environmental and economic impacts. Studies show that this waste presents a texture suitable for the granulometric stabilization of clayey soils, enabling its use as a cover for the daily and intermediate layers of solid waste in landfills. This study aimed to obtain the hydraulic and geotechnical behavior of landfill prototypes composed of layers of organic waste and soil + 70% WFS mixture, compared to a prototype composed of clayey soil. For this, we monitored the leachate percolation and obtained the permeability coefficient (K) of semi-undisturbed samples, extracted from the prototypes. The results indicated that the mixture of soil + 70% WFS behaved as a material of good applicability for the intermediate layers of solid waste coverage in landfill prototypes, considering the environmental and geotechnical gains from the use of a high content of waste (70% replacement of soil by WFS), not changing the parameters of permeability and leachate generation.

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Section: Permeability Of Soil and Soil + 70% Wfs Prototypes And Leachate Volume Generatedmentioning

confidence: 67%

Waste foundry sand used to cover organic waste in landfills

Domingues

Ferreira

Pìres

2021

J Mater Cycles Waste Manag

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“…There are numerous such materials that have been tested as an effective alternative to fine aggregates, viz. quarry dust [11,12], granite sand [13,14], glass [15,16], foundry sand [17,18], CBA [19][20][21], limestone [22], recycled waste materials [23][24][25][26][27][28][29] and other industrial material wastes [30][31][32][33][34], etc.…”

Section: Introductionmentioning

confidence: 99%

Impact of Fine Slag Aggregates on the Final Durability of Coal Bottom Ash to Produce Sustainable Concrete

Ganesan

Sachdeva²,

Petrounias

et al. 2023

Sustainability

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In the current investigation is presented the prospective substitution of cement and fine aggregates with fine slag material (Alccofine 1203) and coal bottom ash, respectively. The investigation was carried out in two steps, viz. Phase I and Phase II. In Phase I, a control mix was designed with basic ingredients of concrete, and then fine aggregates were partially replaced with five percentages (10%, 20%, 30%, 40% and 50%) of coal bottom ash (CBA). To improve the characteristics of coal bottom ash concrete mixtures, ultra-fine slag material, i.e., Alccofine 1203 (an innovative ultra-fine slag material, low calcium silicate, which offers reduced water demand depending upon the concrete performance) was used as a partial replacement of cement. In Phase II, the inspected effect of replacing 5%, 10%, 15% and 20% cement with Alccofine, a concrete mix containing 40% coal bottom ash, on concrete properties such as workability, compressive strength, split tensile strength, flexural strength, pulse velocity, rapid chloride penetration along with a microstructural analysis using SEM was studied. It was concluded from cost analysis that the 15% replacement of cement with ultra-fine material Alccofine in 40% coal bottom ash concrete achieved the properties of high-strength concrete, with an 8.14% increase in cost compared to the control increase. The significance of this work lies in the fact that we achieved a high-strength concrete by using 40% industrial waste, i.e., coal bottom ash, as a partial replacement of fine aggregates in combination with the 15% Alccofine inclusion as a partial replacement of cement. About 58% improvement in compressive strength was recorded for 40% coal bottom ash and 15% Alccofine mix.

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“…It is also important to note that inadequate disposal of this waste can lead to problems for the environment, and disposal in industrial land lls can imply additional costs for the industries involved [3] Furthermore, companies that have foundry processes in their production procedures and, as a result, generate the WFS waste, have been searching for solutions that minimize the costs associated with the nal disposal of their waste, as well as meet the increasing rigor of environmental requirements. [4].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Technical Feasibility of Sustainable Concrete Production Using Waste Foundry Sand as a Fine Aggregate

Marques

Bergmann

Masuero

2023

Preprint

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Waste foundry sand (WFS) is one of the waste residues from the process of elaboration of components in foundries. Presently, its annual production is estimated at three million tons. This residue is derived from a composition of very fine natural sand, which consists predominantly of silica. The material retains properties that render it a compelling candidate for deployment as an alternative constituent to natural fine aggregate in concrete applications. This substitution holds the assurance of fostering enhanced sustainability in both construction and metallurgical industries. Considering these facts, the present study proposed the testing of three different proportions of replacement– 25%, 50%, and 100% by mass - of natural sand by WFS in concrete. To evaluate the feasibility of these replacements, several tests were conducted encompassing mechanical properties as well as aspects related to the durability of the concrete. The results indicated a significant improvement in mechanical performance, wherein there was an increase in compressive strength as the substitution content increased, with no significant variation in elastic modulus. Regarding the aspects associated with durability, both the absorption test and the alkali-aggregate reaction test did not present a statistically significant disparity relative to the core concrete, thereby demonstrating the technical feasibility of WFS utilization in concrete.

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Characterization and reuse of spent foundry sand in the production of concrete for interlocking pavement

Cited by 13 publications

References 18 publications

Waste foundry sand used to cover organic waste in landfills

Waste foundry sand used to cover organic waste in landfills

Impact of Fine Slag Aggregates on the Final Durability of Coal Bottom Ash to Produce Sustainable Concrete

Analysis of the Technical Feasibility of Sustainable Concrete Production Using Waste Foundry Sand as a Fine Aggregate

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