Abstract
This study investigates the development and performance of agro-industrial waste-based air-cured alkali-activated composites (AC) for sustainable high-strength pavement applications. The calculated amount of Na2SiO3 and NaOH were employed with water to generate alkaline activator solution. Locally sourced materials, including blast furnace slag, construction and demolition (C&D) waste, and sugarcane bagasse ash (SBA), were utilized to examine mechanical properties, micro-structural behaviour, and life cycle impacts. Optimized AC mixes containing 50% recycled aggregates (RCA) and 15% SBA demonstrated superior compressive, tensile, and flexural strength, while significantly reducing embodied energy and carbon emissions. Microstructural analysis through XRD, SEM, EDAX, and TGA confirmed the formation of stable alumino-silicate hydrate phases, contributing to enhanced superior-strength. The life cycle analysis results indicated considerable environmental benefits compared to traditional OPC pavement concretes. This research presents a sustainable solution for pavement infrastructure, aligning with circular economy principles by promoting the reduction of resource consumption and greenhouse gas emissions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
