Analysis of Sustainable Concrete by Using Reliability Methods

M. Nikhila, Dr. R. Bhavanib, Y. Manasac

Abstract: The building industry plays a crucial role in realising sustainable community development goals. Considering that the selection of construction materials is a major stumbling block in the way of better project performance with respect to sustainable development indicators, the use of sustainable materials is a significant achievement in this direction. Sustainable concrete, manufactured by partially substituting fine aggregates with waste foundry sand, will be compared to traditional concrete to gauge its compressive strength. The current work treats the strength as a random variable to develop a reliability-based partial safety factor for the compressive strength of concrete with partial substitution of fine aggregate by waste foundry sand. In this investigation, concrete is broken down into components: cement, fine aggregates, coarse aggregates, and Waste Foundry Sand. A methodical approach has been developed to calculate partial safety factors for Waste Foundry Sand concrete. Significant amounts of information have been gathered on the mean, standard deviation, and coefficient of variation of compressive strength of concrete in relation to the variation in parameters. The experimentally obtained compressive strength data has been analysed using normal-probability distribution functions. In addition, the collected data will be analysed to determine partial safety factors in connection to the relevant per cent confidence level values.

Keywords: Reliability, correlation, multicollinearity, coefficient of variation