Beneficial use of Foundry By-Products in Highway Construction

Abichou, Tarek; Edil, Tuncer B.; Benson, Craig H.; Bahia, H

doi:10.1061/40744(154)58

Cited by 21 publications

(19 citation statements)

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“…From Table 9 and Figure 1, it is evident that only WFS03 complies with these criteria. These results conformed with those of previous investigations [21,54,55], in that nearly 90% of grains are in the range of 0.15 mm and 0.80 mm.…”

Section: Physical Properties Of Wfssupporting

confidence: 93%

“…A range of molding progressions are utilized in present foundries, introduced mostly in the parts of refractory material originals, metal types, binders, additives, core reclamation operations, and molding and binding systems. The mentioned factors, as reported [54,55], may have affected the reshaping virgin foundry sand process into WFS.…”

Section: Physical Properties Of Wfsmentioning

confidence: 95%

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Evaluation of Physical and Chemical Properties of South African Waste Foundry Sand (WFS) for Concrete Use

2019

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The foundry industry in South Africa forms one of the greatest industries in the manufacturing sector. It produces waste foundry sand (WFS) that ends up in landfill sites. Around 80% of the WFS could be utilized as a substitute for sand in concrete. The utilization of WFS will benefit the industry, as raw materials (natural sand alternative) and energy are conserved, while costs of disposal are lowered. Soil pollution, as well as water and air resources, will be minimized and the foundries’ competitiveness will be improved. In this study, the physical and chemical properties of five WFSs (two clays and three chemically bonded molding sands) from Gauteng, South Africa were analyzed. The samples were investigated with a view to determine their conformity with applicable engineering criteria when used as a replacement, to various extents, of the fine aggregate. The main properties investigated included physical properties (particle gradation, moisture content, un-compacted bulk density, specific gravity, loss on ignition, clay content, and fineness modulus) and the chemical properties (X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS), pH). The sands generally did not meet the standards pertaining to grading requirements. However, the chemical test results showed the composition of these sands to be comparable with results from other investigations and suitable for use as a natural sand replacement in concrete.

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Section: Physical Properties Of Wfssupporting

confidence: 93%

Section: Physical Properties Of Wfsmentioning

confidence: 95%

Evaluation of Physical and Chemical Properties of South African Waste Foundry Sand (WFS) for Concrete Use

2019

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“…Namely, the stability of the asphalt concrete samples containing WFS decreases as the quantity of WFS is increased (Abichou et al 1999). The same result was expected in this investigation.…”

Section: Mixturessupporting

confidence: 85%

“…It is also recommended that WFS should replace as much as 15% of fine aggregate in asphalt concrete mixtures. The percentage of the fines existing in WFS is the main factor affecting its use in asphalt concrete (Abichou et al 1999).…”

Section: Waste Foundry Sandmentioning

confidence: 99%

An investigation of waste foundry sand in asphalt concrete mixtures

2006

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A laboratory study regarding the reuse of waste foundry sand in asphalt concrete production by replacing a certain portion of aggregate with WFS was undertaken. The results showed that replacement of 10% aggregates with waste foundry sand was found to be the most suitable for asphalt concrete mixtures. Furthermore, the chemical and physical properties of waste foundry sand were analysed in the laboratory to determine the potential effect on the environment. The results indicated that the investigated waste foundry sand did not significantly affect the environment around the deposition

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“…Entre as alternativas de reaproveitamento dos resíduos deste estudo, alguns trabalhos comprovaram a viabilidade de inserção em obras de infraestrutura, como no uso com materiais para aterramento, reforço para construção de estradas e produção de misturas asfálticas (CARNIN, 2008;JAVED, 1992;YA-ZOGHLI-MARZOUK et al, 2014); em concreto estrutural, concreto para blocos de pavimentos e tijolos (BHARDWAJ; KUMAR, 2017; KHATIB; HERKI; KENAI, 2013;LADOMERSKÝ et al, 2016;RESCHKE, 2003) e no desenvolvimento de barreiras ou revestimentos hidráulicos (ABICHOU; EDIL; BENSON, 2004). Para a utilização dos resíduos de fundição nessas aplicações é necessário que eles apresentem, principalmente, granulometria semelhante aos agregados naturais e elementos químicos em sua composição, como sílica e alumina, que contribuam para a melhoria das propriedades mecânicas e a redução da permeabilidade dos materiais em que são incorporados como matérias-primas.…”

Section: Aplicaçõesunclassified

Caracterização de resíduos da fundição de ferro e avaliação de possíveis aplicações na construção civil

Bragagnolo

Ferrazzo

Muscope

et al. 2018

Rev. Bras. Ciênc. Ambient. (Online)

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A geração e a disposição de resíduos oriundos da fundição de metais despertam a necessidade de alternativas que promovam seu melhor reaproveitamento em processos produtivos. Assim, este estudo realizou a caracterização química, mineralógica e granulométrica de resíduos de fundição de ferro cinzento e nodular e avaliou sua aplicabilidade na construção civil. A areia verde, escória e material particulado apresentaram em sua composição química a presença majoritária de dióxido de silício (SiO 2), além de óxido de alumínio (Al 2 O 3), óxido de potássio (K 2 O) e óxido de ferro (Fe 2 O 3). A análise mineralógica revelou a presença de quartzo em todos os resíduos e de hematita, na escória. Os três resíduos apresentaram granulometrias compreendidas entre 0,002 e 0,6 mm. Identificou-se que os resíduos possuem potencialidade de uso na produção de cimento, argamassas e materiais cerâmicos, como substituintes parciais dos agregados miúdos do concreto e como material da camada de sub-base de pavimentos. Palavras-chave: produção de peças fundidas; subprodutos; composição química e mineralógica; reaproveitamento; cerâmica e concreto.

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Beneficial use of Foundry By-Products in Highway Construction

Cited by 21 publications

References 0 publications

Evaluation of Physical and Chemical Properties of South African Waste Foundry Sand (WFS) for Concrete Use

Evaluation of Physical and Chemical Properties of South African Waste Foundry Sand (WFS) for Concrete Use

An investigation of waste foundry sand in asphalt concrete mixtures

Caracterização de resíduos da fundição de ferro e avaliação de possíveis aplicações na construção civil

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