The potential use of crushed waste glass as a sustainable alternative to natural and manufactured sand in geotechnical applications

The increasing price and diminishing reserves of construction sand encourage a need to develop its sustainable cost-effective replacement, helping the transition towards circular economy. Waste glass is derivative natural could potentially show similar geotechnical behaviour. Using crushed waste (CWG) as an alternative traditional would offer double-duty benefit by address geo-environmental challenges depletion disposal ever-increasing glass, together. This study investigated geotechnical, mineralogical morphological behaviour CWG compared it with that (NS) manufactured (MS). characterisation results showed other two sands studied, showing highest permeability abrasion resistance. Surprisingly, shear strength testing friction angle was higher under saturated conditions than dry conditions, indicating stability conditions. analysis conducted using x-ray fluorescence (XRF) spectroscopy revealed silica dominant mineral in all three materials, similarity their chemical composition. performed quantify particle shape each material terms roundness index digital images obtained through optical microscope. demonstrated MS angularity, followed NS. Overall, concluded act next-generation smart geomaterial, replacing several applications. authors this video abstract present key motivations, analyses performed, conclusions cross-institutional research published Journal Cleaner Production (JCR: Q1, SJR: 2019 journal impact factor: 7.2, ranked number# 1 worldwide Sustainable Development according Google Scholar metrics at time article publication). potential use depleting construction. types sand. findings similar, or sometimes even superior, sands. serve ultimately promoting recycling reducing burden on landfill conserving resources, youtube link: https://youtu.be/pGVoJ1QYWUA Download : (84MB)