Enhanced mechanical and durability properties of alkali-activated composites through the use waste tire aggregates, brick powder, and marble powder
JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS, vol.15, no.5, pp.1673-1701, 2026 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 15 Issue: 5
- Publication Date: 2026
- Doi Number: 10.1080/21650373.2026.2612726
- Journal Name: JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.1673-1701
- Keywords: Alkali-activated composites, waste brick powder, waste tire aggregate, waste marble powder
- Ataturk University Affiliated: Yes
Abstract
This study examines the mechanical and durability performance of alkali-activated composites incorporating waste brick powder (BP), waste tire aggregate (WTA), and waste marble powder (WMP). Blast furnace slag was partially replaced with 15% BP, while WMP was substituted with 0-100% WTA. Specimens were thermally cured at 50 degrees C and 75 degrees C. Increasing curing temperature improved compressive strength by up to 32.7%, reaching 62.18 MPa in BP-containing mixtures without WTA. At 25% WTA, BP addition increased compressive strength by 58-67% compared to BP-free mixes. Full WTA replacement reduced strength to 7-11 MPa. BP incorporation decreased porosity from 14.17 to 10.49% and reduced water absorption by up to 28% at moderate WTA levels. Durability was highest in mixtures containing 25% WTA, showing reduced sulfate-induced strength loss (approximate to 20-25%) and improved thermal stability up to 400 degrees C. Optimized BP-WTA combinations enable durable and eco-efficient alkali-activated composites.