Studies on Mechanical Properties of Concrete Containing Waste Glass Powder and Post Consumer Waste Plastic

Abstract

There are many studies evaluating industrial by-products in cement as binder and aggregate in concrete industries. In the recent decades, the efforts have been made to use industry by-products such as fly ash, silica fume, ground granulated blast furnace slag (GGBS), glass cullet, etc., in civil constructions. The potential applications of industry by-products in concrete are as partial aggregate replacement or as partial cement replacement, depending on their chemical composition and grain size. The artificial aggregates from industrial wastes are not only adding extra aggregate sources to the natural and artificial aggregate but also prevent environmental pollution. In this study, the effect of use of two such waste products on resultant properties of concrete mix are studied. These waste products are powdered glass which is used as replecment of cement in concrete, and plastics which is used as replacement of coarse aggregates. The effect is studied in terms of unit weight reduction, compressive strength, split tensile strength, Initial water surface absorption test and Alkali silica reaction test. From the test resuts, it is found taht the use of 20% glass as replacement of cement improves the compressive strength of the mix and increases durability of mix. Use of a combination of 20% glass and 20% plastics reduces the water absorption to the barest miniumum value. Therefore, this mix is suitable from both strength and durabiulity point of view.