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Strength properties and microstructural analysis of self-compacting concrete incorporating waste foundry sand
https://orcid.org/0000-0003-0128-6306
Highlights SCC mixes with partial replacement of fine aggregates with WFS were designed. Incorporation of WFS decreased the workability and self-compactibility. WFS decreased compressive and tensile strength of SCC marginally. WFS can be effectively utilized in manufacturing SCC.
Abstract Waste Foundry Sand (WFS) is a solid waste generated from the metal casting industry. Globally, casting production is about 105 million metric tons per year, about 0.60 ton of WFS is produced per 1 ton of cast steel production. Hence, the yearly production of WFS is approximately 62.64 million metric tons. Therefore, disposal of WFS generated from the casting industry poses serious environmental problems. On the other hand, continuous extraction of natural resources is depleting the environment at a rapid pace increasing the cost of production due to an insufficiency of natural resources. This paper presents the results of an experimental investigation on the influence of waste foundry sand (WFS) as a fine aggregate replacement on the fresh, strength and micro-structural properties of self-compacting concrete (SCC). Initially, control SCC was designed and then, fine aggregates were replaced with 5, 10, 15, 20, 25 and 30% of WFS by volume. The fresh state properties of SCC were evaluated using slump flow, T500, V-funnel-box, and U-box test. Strength and microstructural investigations were carried up to the age of 365 days. Tests results indicate all concrete mixes exhibited the properties of fresh state SCC. The 28-day compressive strength of control SCC was 58 MPa. There was 6.38–18.76% reduction in the strength of SCC with the use of 5–30% WFS at 28 days. Micro-structural results of XRD and SEM validate the experimental results. Hence, WFS could be suitably used in the manufacturing of SCC.
Strength properties and microstructural analysis of self-compacting concrete incorporating waste foundry sand
https://orcid.org/0000-0003-0128-6306
Highlights SCC mixes with partial replacement of fine aggregates with WFS were designed. Incorporation of WFS decreased the workability and self-compactibility. WFS decreased compressive and tensile strength of SCC marginally. WFS can be effectively utilized in manufacturing SCC.
Abstract Waste Foundry Sand (WFS) is a solid waste generated from the metal casting industry. Globally, casting production is about 105 million metric tons per year, about 0.60 ton of WFS is produced per 1 ton of cast steel production. Hence, the yearly production of WFS is approximately 62.64 million metric tons. Therefore, disposal of WFS generated from the casting industry poses serious environmental problems. On the other hand, continuous extraction of natural resources is depleting the environment at a rapid pace increasing the cost of production due to an insufficiency of natural resources. This paper presents the results of an experimental investigation on the influence of waste foundry sand (WFS) as a fine aggregate replacement on the fresh, strength and micro-structural properties of self-compacting concrete (SCC). Initially, control SCC was designed and then, fine aggregates were replaced with 5, 10, 15, 20, 25 and 30% of WFS by volume. The fresh state properties of SCC were evaluated using slump flow, T500, V-funnel-box, and U-box test. Strength and microstructural investigations were carried up to the age of 365 days. Tests results indicate all concrete mixes exhibited the properties of fresh state SCC. The 28-day compressive strength of control SCC was 58 MPa. There was 6.38–18.76% reduction in the strength of SCC with the use of 5–30% WFS at 28 days. Micro-structural results of XRD and SEM validate the experimental results. Hence, WFS could be suitably used in the manufacturing of SCC.
Strength properties and microstructural analysis of self-compacting concrete incorporating waste foundry sand
https://orcid.org/0000-0003-0128-6306
Highlights SCC mixes with partial replacement of fine aggregates with WFS were designed. Incorporation of WFS decreased the workability and self-compactibility. WFS decreased compressive and tensile strength of SCC marginally. WFS can be effectively utilized in manufacturing SCC.
Abstract Waste Foundry Sand (WFS) is a solid waste generated from the metal casting industry. Globally, casting production is about 105 million metric tons per year, about 0.60 ton of WFS is produced per 1 ton of cast steel production. Hence, the yearly production of WFS is approximately 62.64 million metric tons. Therefore, disposal of WFS generated from the casting industry poses serious environmental problems. On the other hand, continuous extraction of natural resources is depleting the environment at a rapid pace increasing the cost of production due to an insufficiency of natural resources. This paper presents the results of an experimental investigation on the influence of waste foundry sand (WFS) as a fine aggregate replacement on the fresh, strength and micro-structural properties of self-compacting concrete (SCC). Initially, control SCC was designed and then, fine aggregates were replaced with 5, 10, 15, 20, 25 and 30% of WFS by volume. The fresh state properties of SCC were evaluated using slump flow, T500, V-funnel-box, and U-box test. Strength and microstructural investigations were carried up to the age of 365 days. Tests results indicate all concrete mixes exhibited the properties of fresh state SCC. The 28-day compressive strength of control SCC was 58 MPa. There was 6.38–18.76% reduction in the strength of SCC with the use of 5–30% WFS at 28 days. Micro-structural results of XRD and SEM validate the experimental results. Hence, WFS could be suitably used in the manufacturing of SCC.
Strength properties and microstructural analysis of self-compacting concrete incorporating waste foundry sand
Sandhu, Ravinder Kaur (author) / Siddique, Rafat (author)
Construction and Building Materials ; 225 ; 371-383
2019-07-19
13 pages
Article (Journal)
Electronic Resource
English
Capillarity of concrete incorporating waste foundry sand
| British Library Online Contents | 2013
Capillarity of concrete incorporating waste foundry sand
| Elsevier | 2013