Synopses & Reviews
The civil engineering sector accounts for a significant percentage of global material and energy consumption and is a major contributor of waste material. The ability to recycle and reuse concrete and demolition waste is critical to reducing environmental impacts meeting national, regional and global environmental targets. The editors and expert contributors summarize recent research in achieving these goals. Part one considers techniques for managing construction and demolition waste, including waste management plans, ways of estimating levels of waste, the types and optimal location of waste recycling plants, and the economics of managing construction and demolition waste. The middle section reviews key steps in handling construction and demolition waste. It begins with a comparison between conventional demolition and construction techniques before going on to discuss the preparation, refinement and quality control of concrete aggregates produced from waste. It concludes by assessing the mechanical properties, strength and durability of concrete made using recycled aggregates. Finally, the conclusion discusses environmental and safety issues such as the removal of gypsum, asbestos and alkali-silica reaction (ASR) concrete, as well as life cycle analysis of concrete with recycled aggregates.
The editors and contributors look at some of the issues faced when waste material is produced. They move on to look at the processes, properties of the materials and monitoring techniques used and review the specific applications of concrete with recycled aggregates, such as pavements and bridges. The conclusion covers safety issues and how to avoid health risks.
About the Author
Fernando Pacheco-Torgal is an investigator in the C-TAC Research Centre at the University of Minho, Portugal, and is the author or co-author of almost 200 publications.
Jorge de Brito is Professor in the Department of Civil Engineering, Architecture and Georesources at the Instituto Superior Técnico at the Technical University of Lisbon, Portugal.
Joao Labrincha is Associate Professor in the Materials and Ceramics Engineering Department at the University of Aveiro, Portugal.
Vivian W.Y. Tam is Senior Lecturer in the School of Computing, Engineering and Mathematics at the University of Western Sydney, Australia.
Yining Ding is Professor at the Institute of Structure Engineering at Dalian University of Technology, China.
Table of Contents
Introduction to the recycling of construction and demolition waste (CDW)
Part 1 Managing construction and demolition waste: Improving waste management plans in construction projects; Methods for estimating CDW; Waste management plants and technology for recycling CDW: State-of-the-art and future challenges; Multi-criteria decision-making methods for the optimal location of CDW recycling facilities; The economics of CDW management facilities
Part 2 Processing and properties of recycled aggregates from construction and demolition waste: Conventional demolition versus deconstruction techniques in managing CDW; Demolition techniques and production of CDW for recycling; Preparation of concrete aggregates from CDW; Separation processes to improve the quality of recycled concrete aggregates (RCAs); Quality control of recycled aggregates (Ras) from CDW; Properties of concrete with recycled aggregates; Strength and durability of concrete using recycled aggregates (Ras)
Part 3 Applications of recycled aggregates from construction and demolition waste: Recycled aggregates (Ras) for roads; Recycled aggregates (Ras) for asphalt materials; Recycled asphalt (RA) for pavements; The suitability of concrete using recycled aggregates (Ras) for high-performance concrete (HPC); Use of CDW for alkali-activated or geopolymer cements
Part 4 Environmental issues affecting recycled aggregates from construction and demolition waste: Removing gypsum from construction and demolition waste (C&DW); Recycling asbestos-containing material (ACM) from CDW; Remediation processes for wood treated with organic and/or inorganic preservatives; An effective approach to utilize recycled aggregates (Ras) from alkali-silica reaction (ASR) affected portland cement concrete; Life cycle assessment (LCA) of concrete with recycled aggregates (Ras); Assessing the potential environmental hazards of concrete made using recycled aggregates (Ras)