Effect of Recycled Foundry Sand on the Workability and Mechanical Properties of Mortar

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:33:14Z
Fecha de publicación2023-01-01
ResumenModern society requires a large number of metal components manufactured by sand casting, which involves the generation of a waste product known as Used Foundry Sand (UFS), of which approximately 100 Mt are generated on an annual basis. Virtually all UFS is currently landfilled, despite the economic and environmental cost overruns that this entails. Here, the recovery of UFS as fine aggregates for the manufacture of concrete is proposed. Since the presence of UFS will mainly affect the mortar that binds the aggregates in the manufacture of concrete, it was decided to isolate this fraction and study only the effect of UFS in mortars. This study evaluated a total of 32 different mixes combining different W/C ratios varying between 0.5 and 0.7 with 5 replacement ratios of natural sand by UFS: 0, 25, 50, 75 and 100\%, respectively. The combined effect was evaluated of the W/C ratio and the replacement ratio on the workability, physical properties, mechanical properties, mechanical durability, and microstructure of the mortars. The incorporation of UFS decreases the workability of the mortars due to the absorption of the residue. For the physical properties of the mortars, density decreased and porosity and absorption increased at all replacement percentages. Flexural and compressive strength decreased when the replacement percentage was higher than 25 wt.\%. In terms of mechanical durability, the mortars with UFS showed abrasion marks within the limits of the EN-1338 standard. From the results obtained, it is possible to conclude that the mortars with UFS require a higher amount of water. Therefore, while small replacement levels lead to a slight improvement in the mechanical properties, this trend breaks down for high replacement levels due to the negative effect of the high W/C ratios required. The authors recommend that for replacements higher than 25 wt.\% of UFS, the W/C ratio has to be taken into consideration to obtain the same workability as the control mortar, although this decreases the mechanical properties.es_ES
Doihttps://doi.org/10.3390/app13063436es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/5085
Idiomaenes_ES
EditorialMDPIes_ES
RelaciónApplied Sciences (Switzerland)es_ES
URL relacionadohttps://doi.org/10.3390/app13063436es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteApplied Sciences (Switzerland)
Palabra claveused foundry sandes_ES
Palabra clavemortares_ES
Palabra claveworkabilityes_ES
Palabra clavemechanical propertieses_ES
Palabra clavewear resistancees_ES
Palabra clavewes_ES
Palabra clavec ratioes_ES
TítuloEffect of Recycled Foundry Sand on the Workability and Mechanical Properties of Mortares_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorDel Angel, Gilberto Garcia
AutorSainz-Aja, Jose A.
AutorTamayo, Pablo
AutorCimentada, Ana
AutorCabrera, Rene
AutorPestana, Luis Ruiz
AutorThomas, Carlos
AutorDel Angel, Gilberto Garciaes_ES
AutorSainz-Aja, Jose A.es_ES
AutorTamayo, Pabloes_ES
AutorCimentada, Anaes_ES
AutorCabrera, Renees_ES
AutorPestana, Luis Ruizes_ES
AutorThomas, Carloses_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número6es_ES
URL relacionadahttps://doi.org/10.3390/app13063436
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen13es_ES

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