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AuthorBaawain, Mahad
AuthorShoukry, Hamada
AuthorAl-Jabri, Khalifa
Available date2020-04-30T12:48:27Z
Publication Date2020
Publication NameProceedings of the International Conference on Civil Infrastructure and Construction
CitationBaawain M., Shoukry H., Al-Jabri K.,"Mechanical Performance and Thermo- Physical Properties of Cement Mortar Incorporating Hybrid Slags", International Conference on Civil Infrastructure and Construction (CIC 2020), Doha, Qatar, 2-5 February 2020, DOI: https://doi. org/10.29117/cic.2020.0130
ISSN2958-3128
IdentifierP. O. Box: 2713 Doha-Qatar, Email: qupress@qu.edu.qa
URIwww.cic.qa
URIhttp://dx.doi.org/10.29117/cic.2020.0130
URIhttp://hdl.handle.net/10576/14716
AbstractOwing to the growing environmental pressure to reduce waste and pollution, the effective utilization of industrial solid wastes in construction applications has gained notable attention. This study investigates the mechanical and thermal properties of cement mortars incorporating two types of waste slags. Ferrochrome (FeCr) slag aggregate was used as a replacement for sand at the ratios of 25, 50, 75 and 100 wt. %. Ground granulated blast furnace slag (GGBS) has been used as a partial replacement of cement at the ratio of 25 wt. %. Compressive strength, permeable voids content and thermal conductivity tests have been conducted after 28 days of curing. The microstructure characteristics have been investigated by scanning electron microscope (SEM) equipped with energy dispersive analytical x-ray unit (EDAX). The experimental results revealed that FeCr waste aggregates could satisfactorily replace for natural fine sand in cement mortars up to 25 wt. % without a remarkable degradation of the compressive strength. Furthermore, Increasing replacement ratios of FeCr aggregates over 25 wt. % have resulted in noticeable decrease in thermal conductivity and an increase in the permeable voids content of cement mortars. The integration of GGBS with FeCr aggregates leads to enhanced compressive strength, reduced voids content and contribute to improved microstructure. The developed mortars with comparatively improved thermal resistance can be recommended for several structural and non-structural applications especially in hot weather regions.
SponsorThe authors would like to acknowledge the financial support provided by Sohar Port and Free Zone Company under Sultan Qaboos University Grant No. CR/ENG/ CAED/18/07.
Languageen
PublisherQatar Univesrity Press
SubjectFerrochrome slag
Blast furnace slag
Compressive strength
Thermal conductivity
Microstructure
TitleMechanical Performance and Thermo-Physical Properties of Cement Mortar Incorporating Hybrid Slags
TypeConference Paper
Pagination997-1005
ESSN2958-3136
dc.accessType Open Access


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