Low-alkaline activated construction and demolition waste-based geopolymers

Development of alkali-activated materials using biomass fly ash, phosphogypsum, and recycled concrete aggregates

“…Nevertheless, 5% silica fume substitution mitigated the observed negative impacts. The study's findings indicate that dense, low-alkaline activated CDW-based geopolymer mortars can achieve a compressive strength of 24.9 MPa, flexural strength of 4.7 MPa, and superior durability performance (Cong & Cheng, 2021;İlcan et al, 2024).…”

“…Recently, researchers have focused on developing environmentally friendly, easy-to-use and cost-effective construction and demolition waste (CDW)-based geopolymer mortars activated solely with low-alkalinity activators (Cong & Cheng, 2021;İlcan et al, 2024). Slag and silica fume were utilised as industrial waste-based precursors to provide additional sources of Ca and Si, promoting enhanced geopolymerisation.…”