This research provides a critical discussion on the potential of using waste glass in the alkali-activation process for sustainable soil stabilisation in road construction. The significance of this study arises from its potential to address multifaceted real-world challenges, including sustainability, infrastructure development, waste management, and soil stabilisation. The paper first reviews alkali-activated binders (AABs) technology and explains the components of such materials. In the next step, this paper dives into the real-world applications of alkali-activated technology, emphasising its potential for enhancing infrastructure sustainability. It involves the exploration of waste glass application in alkaline-activation technology, which not only reduces waste directed to landfills but also minimises the extraction of raw materials for construction purposes. Conventional soil stabilisation methods, while effective, raise environmental concerns due to the high energy consumption and CO2 emissions associated with the production of cement and lime. AABs, offering an eco-friendly alternative to cement for soil stabilisation, are especially promising for road construction. Applying these existing strategies to soil stabilisation in road construction projects represents an unexplored intersection and a promising opportunity for sustainable practices. This research underscores the necessity for continued investigation in the field, with emphasis on evaluating the long-term performance of alkali-activated binders (AABs) and developing standardised testing methodologies. The study advocates for a transition towards more sustainable and environmentally responsible practices in road construction by harnessing the advantages of AABs that incorporate recycled waste glass.

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Sustainable Soil Stabilisation for Roads: A Critical Review of Glass-Based Alkali-Activated Binders

  • Sara Bayandor,
  • Roohollah Kalatehjari,
  • Afshin Asadi

摘要

This research provides a critical discussion on the potential of using waste glass in the alkali-activation process for sustainable soil stabilisation in road construction. The significance of this study arises from its potential to address multifaceted real-world challenges, including sustainability, infrastructure development, waste management, and soil stabilisation. The paper first reviews alkali-activated binders (AABs) technology and explains the components of such materials. In the next step, this paper dives into the real-world applications of alkali-activated technology, emphasising its potential for enhancing infrastructure sustainability. It involves the exploration of waste glass application in alkaline-activation technology, which not only reduces waste directed to landfills but also minimises the extraction of raw materials for construction purposes. Conventional soil stabilisation methods, while effective, raise environmental concerns due to the high energy consumption and CO2 emissions associated with the production of cement and lime. AABs, offering an eco-friendly alternative to cement for soil stabilisation, are especially promising for road construction. Applying these existing strategies to soil stabilisation in road construction projects represents an unexplored intersection and a promising opportunity for sustainable practices. This research underscores the necessity for continued investigation in the field, with emphasis on evaluating the long-term performance of alkali-activated binders (AABs) and developing standardised testing methodologies. The study advocates for a transition towards more sustainable and environmentally responsible practices in road construction by harnessing the advantages of AABs that incorporate recycled waste glass.