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Effects of waste sulfur content on properties of self-compacting concrete

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2020
Authors
Savić, Aleksandar R.
Martinović, Sanja
Vlahović, Milica
Volkov-Husović, Tatjana
Article (Published version)
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Abstract
Self-compacting concrete (SCC) contains fine mineral fillers such as limestone powder. The idea of this study was to partially replace limestone with waste sulfur since it is hydrophobic, insoluble in water and therefore chemically inert and to compare the properties of produced concrete samples. Fresh concrete properties included: slump-flow, t500, V-funnel time, L-box ratio, segregation ratio, density, and entrained air content. Hardened concrete was tested for compressive, flexural and bond strengths, ultrasonic velocity, dynamic elasticity modulus, dynamic Poisson’s ratio, and microstructure. Flowability and segregation increased, while bulk density, compressive and flexural strength, dynamic elasticity modulus and ultrasonic velocity slight declined. Times t500 and V-funnel time, L-box ratio and entrained air changed insignificantly. Considering that all properties should remain or improve in case of waste valorization and the criteria should set to satisfy requirements for SCC, ...this study proved that all mixtures can be used for structural applications.

Keywords:
Concrete / Mixture proportion / Mechanical properties / Microstructure / Modulus of Elasticity
Source:
Materiales de Construcción, 2020, 70, 338
Publisher:
  • Consejo Superior de Investigaciones Cientificas ^Instituto de Ciencias de la Construccion Eduardo Torroja
Projects:
  • TR 36017 Istraživanje mogućnosti primene otpadnih i recikliranih materijala u betonskim kompozitima, sa ocenom uticaja na životnu sredinu, u cilju promocije održivog građevinarstva u Srbiji
  • TR 33007 Implementacija savremenijih tehničko-tehnoloških i ekoloških rešenja u postojećim proizvodnim sistemima Rudnika Bakra Bor i Rudnika Bakra Majdanpek
  • III 45012 Sinteza, procesirenje i karakterizacija nanostrukturnih materijala za primenu u oblasti energije, mehaničkog inženjerstva, zaštite životne stredine i biomedicine

DOI: 10.3989/mc.2020.06919

WoS: 000532805400003

[ Google Scholar ]
URI
http://grafar.grf.bg.ac.rs/handle/123456789/1974
Collections
  • Radovi istraživača / Researcher's publications
  • Катедра за материјале и конструкције
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