RT Journal Article
T1 Steel slag aggregate in concrete: 												The effect of ageing on potentially expansive compounds
T2 Árido siderúrgico en hormigonesProceso de envejecimiento y su efecto en compuestos potencialmente expansivos
A1 Frías, M.
A1 San-José, J. T.
A1 Vegas, I.
AB Growing numbers of plants have sprung up in recent years to treat the electric arc furnace slag generated in scrap metal melting. When this by-product is separated, crushed and screened, it yields a granular material known as steel slag aggregate, which may be profitably used in the manufacture of commercial concrete. The feasibility of this application depends essentially on the volume stability of the resulting aggregate. The present paper discusses the potentially expansive compounds (Cl-, SO3, free CaO and free MgO) present in aggregate derived from different types of black slag during aggregate ageing. The aim is to establish optimal ageing conditions to ensure volume stability in steel slag aggregate. The findings showed that the slag analyzed had low concentrations of the expansive compounds studied and that possible swelling can be reduced by 45-day ageing.
SN 0465-2746
YR 2010
FD 2010
LK https://hdl.handle.net/11556/3572
UL https://hdl.handle.net/11556/3572
LA eng
NO Frías , M , San-José , J T & Vegas , I 2010 , ' Steel slag aggregate in concrete : The effect of ageing on potentially expansive compounds ' , Materiales de Construccion , vol. 60 , no. 297 , pp. 33-46 . https://doi.org/10.3989/mc.2019.45007
DS TECNALIA Publications
RD 26 jul 2024