EFFECT OF CHARACTERIZATION PROPERTIES ON COMPRESSIVE STRENGTH OF CONCRETE CONTAINING QUARRY DUST AND WASTE PLASTIC AS FINE AGGREGATE

The scope of this study is to enhance the industry understanding of the sustainable utilization of quarry dust, and to identify any gaps in current knowledge. The term sustainable utilization implies the use of quarry dust to their full potential to meet the needs of the present, while at the same time conserving natural resources and finding ways to minimize the environmental impacts associated both with quarry fines production and use. Concrete mixes were casted using ordinary river sand and compared with 25%,50%,75%, 100% replacement with quarry dust in combination with waste plastic in fabriform. . The addition of quarry dust along with waste plastic significantly improved the concrete matrix properties in terms of strength. Regression analysis and validation of the models developed was done to co-relate the results of compressive strength for 7, 14, 28, 90 days .The addition of fine quarry dust with ldpe as waste plastic in concrete resulted in improved matrix densification compared to conventional concrete. Matrix densification has been studied qualitatively through petro graphical examination using digital optical microscopy. The structure was evaluated using XRD and SEM in quarry dust and ldpe composites.