Paper Contents
Abstract
This study presents a dual-modification approach for enhancing the performance of autoclaved aerated concrete (AAC) by partially replacing natural sand with ceramic waste powder (CWP) and incorporating alkali-resistant glass fibers (GF). A 15% replacement of sand with finely processed CWP was adopted as the optimum level based on prior findings, while glass fibers were introduced at dosages of 0.10.3% by total dry weight. Mechanical and durability properties were experimentally evaluated following IS standards. Results showed that replacing sand with 15% CWP increased compressive strength from 2.75 MPa to 3.25 MPa due to its pozzolanic reactivity and filler effect. The addition of glass fibers further enhanced the performance, with 0.2% fiber content achieving the highest compressive strength (3.48 MPa) and split tensile strength (0.42 MPa), along with reduced water absorption and moisture content. A slight decline in performance was observed at 0.3% due to fiber agglomeration. All mixes maintained lightweight densities within the IS 2185 (Part 3): 1984 range (547565 kgm), preserving AACs thermal and handling advantages. These findings demonstrate that combining ceramic waste with minimal glass fiber reinforcement offers a practical, sustainable, and experimentally validated strategy to improve the strength and durability of AAC without compromising its lightweight character.
Copyright
Copyright © 2025 DIVYANSHU SINGH. This is an open access article distributed under the Creative Commons Attribution License.
