Compressive strength of concrete containing expanded polystyrene styrofoam (EPS) concrete and partial cement replacement of fly ash and silica fume / Mazizah Ezdiani Mohamad ... [et al.]

• Main Authors: Ezdiani Mohamad, Mazizah, Ting, Robert, A Razak, Ashraf, Kifli, Azrul Zulwali, Bakie, Nisa ‘Aqila, Sk Abd Razak, Sk Muiz, Rizalman, Ahmad Nurfaidhi
• Format: Article
• Language: English
• Published: Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2022
• Subjects: Polystyrene
• Online Access: https://ir.uitm.edu.my/id/eprint/84047/1/84047.pdf; https://doi.org/10.24191/jmeche.v11i1.23609; https://ir.uitm.edu.my/id/eprint/84047/; https://doi.org/10.24191/jmeche.v11i1.23609

Expanded polystyrene (EPS) waste is generated by industry and post-consumer products. This is non-biodegradable, but is often disposed of by incineration or landfill, resulting in environmental pollution. Fly ash (FA) is a waste product from coal-fired power plants, and silica fume is a by-product of the smelting process in the production of silicon and ferrosilicon alloys. Both materials cause environmental pollution. Instead of disposing of them, there is a better way to put them to good use, such as EPS concrete (EPSC), by using EPS as a coarse aggregate and a mixture of fly ash and silica fume as a partial cement replacement. In this study, different mixes were investigated in which 100% of the coarse aggregate was replaced by EPS beads and the cement was replaced by a mixture of FA and SF at 20%, 25%, and 30%. Several laboratory tests were performed, including a slump test, a density test, a compressive strength test, and an ultrasonic pulse velocity (UPV) test.