Engineering Reports, Год журнала: 2025, Номер 7(6)

Опубликована: Май 29, 2025

ABSTRACT Aggregates constitute ~60%–80% of concrete volume and play a crucial role in determining its mechanical durability properties. In the context sustainable construction, artificial aggregates derived from industrial by‐products are gaining prominence as environmentally responsible alternatives to natural aggregates. This study presents development performance evaluation novel lightweight incorporating polymer aggregate synthesized coal fly ash (CFA), epoxy resin, hardener varying CFA‐to‐resin ratios (70:30, 74:26, 80:20 by weight). The proposed mix design aims address increasing demand for lightweight, durable, materials suitable biomedical infrastructure applications, which require enhanced thermal insulation, fire resistance, seismic performance. Concrete mixtures were designed achieve target compressive strengths 17.5, 20, 30 MPa, with both (BR series) normal weight (BN formulations evaluated. Results demonstrated that incorporation reduced bulk density up 15.36%, while meeting or exceeding required strength thresholds BR_17.5 BR_20 mixtures. Although BR_30 did not meet strength, aggregate‐based exhibited significantly improved flexural (up 60.57% higher than conventional mixes) chemical when exposed acidic saline environments. However, resistance elevated temperatures was lower compared concrete. findings suggest offers promising material solution other applications demanding thermally efficient construction materials. utilization waste production only contributes environmental conservation but also advances next‐generation building aligned circular economy principles.

Язык: Английский