Abstract
Despite established knowledge on the application of recycled aggregate in concrete, their use in structural concrete is somewhat limited. A sustainable supply of recycled materials together with adequate quality production and monitoring can enable wider use in high-value applications. Infrastructure in Qatar is being developed rapidly with large projects for the hosting of the World Cup 2022. One of the main challenges facing the construction industry is the lack of locally available good quality aggregates and the increased demand for aggregates. Industry relies on imported aggregates but there are concerns about quality and limited port capacity. Meanwhile, large quantities of construction wastes are available with potential to support the government strategy of green and sustainable construction. Recycled aggregates were subjected to extensive testing to optimise their use in structural C40 concrete and building trials were used to demonstrate how to apply this in practice. The results indicated at least similar strength and durability-related properties compared with imported aggregates. The project outcomes are being used to update the Qatar Construction Specification. A quality management system was developed to ensure a consistent supply of recycled aggregates and the project is now moving to implement recycled materials in government projects.
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 callMore From: Proceedings of the Institution of Civil Engineers - Construction Materials
Disclaimer: 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.
