Thermal impact of adding recycled glass in microsurfacing

Author(s): Apparao Gandi (1), Abdelghafour Zabayou (2), Saeed Badeli (3), Alan Carter (4), and, Michel Vaillancourt
Paper category: Proceedings
Book title: Proceedings of the International Conference on Sustainable Materials, Systems and Structures (SMSS2019) New Generation of Construction Materials
Editor(s): Marijana Serdar, Nina Štirmer, John Provis
ISBN: 978-2-35158-217-6,
Vol 1. ISBN: 978-2-35158-223-7
e-ISBN: 978-2-35158-218-3
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 68-75
Total Pages: 8
Language : English

Abstract: Pavement albedo is an important factor when evaluating thermal performance of pavement. Information regarding albedo value for different materials is currently limited. The use of fresh coatings could help cool cities and reduce heat islands. The important thermal characteristics of the pavement, which are albedo, diffusivity, conductivity and thermal capacity, can be modified and improved by integrating new materials into its structure. Glass is one of these new materials, and it is the subject of various studies and research on its mechanical performance, but little in depth on its thermal performance. The main objective of this study is to evaluate the impact of the addition of post-consumer glass particles on the thermal characteristics of microsurfacing. Mix design of microsurfacing with glass was first done, then we have compared the insulating capacity of a micro surfacing with and without glass, and measured the value of albedo and the thermal diffusivity of the micro surfacing with glass on an outside test section. The results have shown very little effect on the albedo, but a significant impact in the temperature in the pavement under the microsurfacing.

Online publication : 2019
Publication type : full_text
Public price (Euros) : 0.00