Mechanical properties of alkali-activated slag based SIFCON incorporating waste steel fibers and waste glass

Gok, Saadet Gokce; Sengul, Ozkan

doi:10.1016/j.conbuildmat.2023.133697

Cited by 14 publications

(1 citation statement)

References 57 publications

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“…More recent state-of-the-art techniques include the use of waste glass in geopolymerization as a replacement for sodium silicate [36], its combination with chamotte as a precursor [37] and the production of mortars utilizing waste glass with ceramic tile waste achieving 9-12 MPa of compressive strength [38]. Furthermore, a carbonation treatment as an alternative to mechanical and/or chemical treatment method was successfully investigated in [39], while [40,41] evaluated alkali-activated materials derived from photovoltaic waste glass.…”

Section: Introductionmentioning

confidence: 99%

Geopolymerization of Recycled Glass Waste: A Sustainable Solution for a Lightweight and Fire-Resistant Material

Valanides,

Aivaliotis,

Oikonomopoulou

et al. 2024

Recycling

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Glass is considered a sustainable material with achievable recovery rates within the EU. However, there are limited data available for construction glass waste management. Furthermore, glass is a heavy material, and considering the geographical limitations of Cyprus, the transportation trading cost within the EU is extremely high. Therefore, another method for utilizing this by-product should be developed. The aim of this research is to investigate the production of a low-cost, lightweight and fireproof material able to retain its structural integrity, using the geopolymerization method with the incorporation of randomly collected construction glass waste. The glass waste was initially processed in a Los Angeles abrasion machine and then through a Micro-Deval apparatus in order to be converted to a fine powder. Mechanical (compressive and flexural strength), physical (setting time and water absorption) and thermal properties (thermal conductivity) were investigated. The fire-resistant materials presented densities averaging 450 kg/m3 with a range of compressive strengths of 0.5 to 3 MPa. Additionally, a techno-economic analysis was conducted to evaluate the viability of the adopted material. Based on the results, the final geopolymer product has the potential to be utilized as a fire resistance material, preventing yielding or spalling.

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