This study examines the viability of using construction waste, specifically recycled brick waste powder (RBWP), as an alternative conventional industrial byproduct (fly ash) in the manufacturing of engineered geopolymer composites (EGC). The EGC mixtures are made with 40 mu m diameter and 12 mm length polyvinyl alcohol (PVA) fiber. RBWP replaces class-F fly ash in EGC by 0, 20%, 40%, 60%, 80%, and 100%. This study produces six distinct EGC mixtures in total. The flexural strength, abrasion resistance, sorptivity, and water absorption of the EGC are investigated. Microstructural characterization is carried out using scanning electron microscopy (SEM). Based on the results, when fly ash is replaced by 40% and 100%, respectively, adding RBWP to the EGC mixes significantly improves flexural strength by 39% and midspan deflection by 169%. Nevertheless, abrasion resistance significantly improves when fly ash is completely replaced with RBWP, even though sorptivity and water absorption increase by about 128% and 240%, respectively. The volume change is reduced by 25.4% when RBWP is used. Furthermore, the SEM study shows that the RBWP undergoes active geopolymerization in the EGC mixes.
机构:
King Saud Univ, Coll Engn, Dept Civil Engn, POB 800, Riyadh 11421, Saudi ArabiaKing Saud Univ, Coll Engn, Dept Civil Engn, POB 800, Riyadh 11421, Saudi Arabia
机构:
Indian Inst Technol Roorkee, Dept Civil Engn, Roorkee 247667, Uttar Pradesh, IndiaPrince Sattam Bin Abdulaziz Univ, Coll Engn, Dept Civil Engn, Alkharj 11942, Saudi Arabia
Debbarma, Solomon
Ozbakkaloglu, Togay
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Texas State Univ, Ingram Sch Engn, San Marcos, DC 78667 USAPrince Sattam Bin Abdulaziz Univ, Coll Engn, Dept Civil Engn, Alkharj 11942, Saudi Arabia
机构:
King Saud Univ, Coll Engn, Dept Civil Engn, POB 800, Riyadh 11421, Saudi ArabiaKing Saud Univ, Coll Engn, Dept Civil Engn, POB 800, Riyadh 11421, Saudi Arabia
机构:
Indian Inst Technol Roorkee, Dept Civil Engn, Roorkee 247667, Uttar Pradesh, IndiaPrince Sattam Bin Abdulaziz Univ, Coll Engn, Dept Civil Engn, Alkharj 11942, Saudi Arabia
Debbarma, Solomon
Ozbakkaloglu, Togay
论文数: 0引用数: 0
h-index: 0
机构:
Texas State Univ, Ingram Sch Engn, San Marcos, DC 78667 USAPrince Sattam Bin Abdulaziz Univ, Coll Engn, Dept Civil Engn, Alkharj 11942, Saudi Arabia