Recycled materials in the building industry represent an attractive alternative to the consumption of natural resources. The paper shows results obtained by adding electric arc furnace slag (EAFs) as partial replacement of natural aggregates in concrete production. EAFs determines a significant increase in the compressive strength of concrete while it does not seem to affect the bending strength and drying shrinkage of cement mixtures. The concrete durability was approached by a careful chemical analysis and microstructural investigation of EAFs. The tendency to deteriorate seems negligible due to a low presence of amorphous and expansive compounds leading to an increase in volume. Moreover, the metals released, compared with the national legislation requirements, meet environmental standards.

Electric arc furnace slag as natural aggregate replacement in concrete production / Monosi, Saveria; Ruello, Maria Letizia; Sani, Daniela. - In: CEMENT & CONCRETE COMPOSITES. - ISSN 0958-9465. - STAMPA. - 66:(2016), pp. 66-72. [doi:10.1016/j.cemconcomp.2015.10.004]

Electric arc furnace slag as natural aggregate replacement in concrete production

MONOSI, SAVERIA;RUELLO, Maria Letizia;SANI, DANIELA
2016-01-01

Abstract

Recycled materials in the building industry represent an attractive alternative to the consumption of natural resources. The paper shows results obtained by adding electric arc furnace slag (EAFs) as partial replacement of natural aggregates in concrete production. EAFs determines a significant increase in the compressive strength of concrete while it does not seem to affect the bending strength and drying shrinkage of cement mixtures. The concrete durability was approached by a careful chemical analysis and microstructural investigation of EAFs. The tendency to deteriorate seems negligible due to a low presence of amorphous and expansive compounds leading to an increase in volume. Moreover, the metals released, compared with the national legislation requirements, meet environmental standards.
2016
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/227965
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 94
  • ???jsp.display-item.citation.isi??? 85
social impact