EFFECT OF PARTIAL REPLACEMENT OF CEMENT WITH WASTE GLASS ON THE PROPERTIES OF CONCRETE

Million tons of waste glass is being generated annually all over the world. Once the glass becomes a waste it is disposed as landfills, which is unsustainable as this does not decompose in the environment. Glass is principally composed of silica. Use of milled (ground) waste glass in concrete as partial replacement of cement could be an important step toward development of sustainable (environmentally friendly, energy-efficient and economical) infrastructure systems. When waste glass is milled down to micro size particles, it is expected to undergo pozzolanic reactions with cement hydrates, forming secondary Calcium Silicate Hydrate (C–S–H).However, the chemical composition and the pozzolanic properties of waste glass are encouraging for the use of this waste in the cement and concrete industries to provide an environmental friendly solution. This project work reviews the different proportion of waste glass and fly ash can be used in cement and the effect of the glass properties on the performance and durability of the produce concrete is carried out. The compressive strength test results indicated that recycled glass concrete gave better strength compared to control samples. A 20% replacement of cement with waste glass and fly ash was found to giving convincing results compare to other samples in this project we have consider M30 grade of concrete