Abstract
Glass-based goods are produced and consumed in relative abundance, making glass a material that is found in most households, thereby leading to its accumulation in alarming quantities throughout the globe and posing an environmental challenge. This being said, glass has been widely acknowledged to possess a variety of desirable physiochemical properties, making it suitable for utilisation as an engineering aggregate. The properties include its non-biodegradable nature, resistance to chemical attack, low water absorption, hydraulic conductivity, temperature-dependent ductility, alterable particle gradation, and its availability in a multitude of forms/chemical compositions. Owing to these properties, glass has been employed in a myriad of civil engineering studies and field trials to assess its efficacy as an engineering aggregate and to provide sustainable management schemes for waste glass. These studies/trials have incorporated glass in many forms, including fine recycled glass (FRG), medium recycled glass (MRG), coarse recycled glass (CRG), glass powder, glass fibres, foamed glass, and glass-based geopolymers. Although the beneficial properties of glass can be exploited in numerous engineering endeavours, this review paper focuses on the possible application of glass to subsurface layers of pavements. In turn, the current study centres on research studies/trials presenting results on the physicochemical, mechanical, and durability aspects of pavement layers (base, subbase, and subgrade) containing pure glass samples or glass as percentage replacements in materials, including but not limited to unbound granular materials (i.e., recycled concrete aggregate (RCA) and crushed rock (CR)) and clay soils. Through the knowledge compiled in this review article, it is reasonable to state that glass shows solid potential as a road pavement material.
Highlights
On a global scale, waste materials are becoming increasingly problematic, both environmentally and economically [1,2]
The present study aims to conduct a review of current developments in the use of recycled waste glass in various forms for use as supplementary pavement layer materials
This section reveals vital findings observed in the existing literature concerning the physicochemical properties of recycled glass and subsurface pavement layer aggregates containing recycled glass
Summary
Waste materials are becoming increasingly problematic, both environmentally and economically [1,2]. Due to the abundance of waste materials generated every year, landfilling has become a significant environmental problem [3,4]. Road- and transportation-related industries are responsible for consuming large amounts of natural materials. One way to alleviate the environmental impact is to include recycled materials in pavement layers as a sustainable approach [5]. Pavements are an essential structure within the construction industry and apply to various infrastructure systems within the civil sector, such as roads, airstrips, embankments, and footpaths. Sourced construction materials such as sand, gravel, crushed stone, asphalt, and concrete are typically used to construct pavements. The building and construction sector was responsible for the emission of 36%
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
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 callDisclaimer: 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.
