This book presents the work of the RILEM TC 279-WMR, whose purpose was to facilitate the use of waste, marginal and secondary materials for roads by investigating the performance of road materials containing waste through round robin tests and the development of standard procedures for their selection, preparation, and use. The structure of this book includes an introduction, five technical chapters, and a conclusion. The topics addressed are: the use of asphalt binder additives such as plastic and rubber; the combined use of aggregate and filler substitute in paving mixtures (construction demolition waste, rubber, and steel slags); the environmental assessment and the potential sources of pollutants originated from the use of this recycled materials.
Author(s): Augusto Cannone Falchetto, Lily Poulikakos, Emiliano Pasquini, Di Wang
Series: RILEM State-of-the-Art Reports, 38
Publisher: Springer-RILEM
Year: 2023
Language: English
Pages: 161
City: Paris
Preface
RILEM Publications
Contents
1 Introduction
1 Background and Motivation
2 Structure of the TC
2.1 TG1 and TG2: Asphalt Binder Additives
2.2 TG3: Aggregate and Filler Substitutes
2.3 TG4: Life Cycle Assessment
3 Scope of This Book
References
2 Bituminous Binder and Bituminous Mixture Modified with Waste Polyethylene
1 Introduction
2 Literature Review
3 Bituminous Binder Modified with Waste PE
3.1 Preparation of Modified Bituminous Binder
3.2 Experimental Plan
4 Results and Analysis on Bituminous Binder Tests
4.1 Conventional Tests Results
4.2 Interlaboratory Comparison of DSR T-F-Sweep Tests Bituminous Binder
4.3 MSCR and LAS Tests Bituminous Binder
4.4 FTIR and DSC Tests
5 Bituminous Mixture Modified with Waste PE
6 Summary and Conclusions
7 Perspective and Outlook
References
3 Crumb Rubber Modified Binders
1 Introduction
2 State-of-the-Art Review
2.1 End-of-Life Tires
2.2 Crumb Rubber Production
2.3 Crumb Rubber Modified Bitumen
2.4 Barriers in Application of Crumb Rubber Worldwide
2.5 Future Tendencies
3 Objective
4 Materials and Methodology
5 Results
5.1 CR Morphology
5.2 Penetration
5.3 Softening Point
5.4 Viscosity
5.5 FTIR
5.6 Shear Complex Modulus
5.7 Black Space Diagram
6 Summary and Conclusions
7 Perspectives and Outlook
References
4 Waste Aggregates in Asphalt Mixtures
1 Introduction
2 Interlaboratory Test Program
2.1 Introduction and Objective
2.2 Experimental Activities
3 Results and Discussion
3.1 Aggregate Characterisation
3.2 Mix Design
3.3 Mixture Characterisation
4 Conclusions
5 Perspectives and Outlook
References
5 Life Cycle Assessment of Asphalt Mixtures with WMR
1 Introduction
1.1 Context
1.2 Aim of the Study
2 Methodology
2.1 Benchmarking of Reference Asphalt Mixtures
2.2 Environmental Impact of Asphalt Mixtures with WMR
3 Results
3.1 LCA Benchmarking for Asphalt Mixtures
3.2 Environmental Impact Assessment of Asphalt Mixtures with WMR
4 Summary, Conclusions and Future Recommendations
References
6 Conclusions
1 Overview
2 Synthesis on the Outcome of the Technical Committee
2.1 Task Group 1
2.2 Task Group 2
2.3 Task Group 3
2.4 Task Group 4
3 Achievements of the TC
3.1 State-of-the-Art Report
3.2 Peer Reviewed Publications
3.3 Organization of Workshops and Presentations
4 Research Needs and Perspective
References
