Tushar Malik , Vineet Kumar 02 06 The depletion of natural sand and the increasing accumulation of industrial waste such as glass necessitate sustainable alternatives in concrete production This study investigates the effect of using waste crushed glass as apartial replacement for fine aggregate in M45 grade concrete The impact of different waste glass replacement levels 10 20 30 and 40 was evaluated through comprehensive testing of compressive strength flexural strengthwater absorption density and workability Compressive strength tests at 7 14 and 28 days revealed that up to 20waste glass replacement maintains structural integrity while higher levels reduce strength due to the inert nature ofglass particles Flexural strength showed similar trends with reduced tensile resistance at higher replacementpercentages Water absorption increased with waste glass content suggesting higher porosity while density measurements confirmed a decrease in mass beneficial for lightweight applications Workability tests indicatedreduced slump and compacting factor requiring admixtures to maintain fluidity The study concludes that waste glass can be safely incorporated up to 20 offering environmental and structural benefits promoting sustainableconstruction practices Copyright (c) Journal of Science Engineering Technology and Management Science. All rights reserved 2026