Feasibility of Using Selected and Mixed Recycled Aggregates from Construction and Demolition Waste in Unbound Pavement Layers

• Type: Article in International Conference Proceedings Book
• Date: 2022

Authors

Castorina Silva Vieira (Author) FEUP; Paulo M. Pereira (Author) Other; Maria de Lurdes Lopes (Author) FEUP

Conference proceedings International

Title: Lecture Notes in Civil Engineering

Pages: 267-279

4th International Conference on Transportation Geotechnics, ICTG 2021

23 May 2021 through 26 May 2021

Indexing

Scopus - 2 Citations

Associated Projects

CDW_LongTerm - Valorização de Resíduos de Construção e Demolição em aterros reforçados com geossintéticos. Estudo do comportamento a longo prazo

Other information

Authenticus ID: P-00V-B8P

DOI: 10.1007/978-3-030-77230-7_21

Abstract (EN): The proper use of the natural resources is one of the fundamental pillars for the sustainable development required to current society. Construction and demolition (C&D) wastes have been considered as a priority stream because of the large amounts that are generated and their high potential for reuse and recycling. Despite their high potential, reuse and recycling rates vary widely across countries. Recycled C&D materials have been increasingly used as recycled aggregates in pavement base and subbase layers and other road construction applications. However, most of the research studies were carried out on selected recycled aggregates (recycled concrete aggregate, crushed brick or reclaimed asphalt pavement) not always available in quantities for full-scale use. This paper presents the laboratory characterization of two recycled aggregates coming from C&D waste (a non-selected (mixed) recycled aggregate and a selected recycled aggregate) to evaluate whether they meet the technical requirements established in Portuguese specifications, which would enable their application in unpaved rural and forest roads and embankments and capping layers of other transport infrastructures. A series of relevant physical, mechanical and chemical properties are evaluated, and the fulfilment of the requirements is subsequently discussed. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13