Performance evaluation of self-compacting concrete comprising ceramic waste powder as fine aggregate

Abstract

As the population around the world is on the rise so to meet consumer's needs a large amount of solid waste is generating and it needs large landfill sites for disposal of this waste. Alteration of this solid waste into other alternative resources will reduce the load on non-renewable resource materials and this can help in solving the landfills problem. Numerous studies have drawn attention to the usage of solid waste in concrete production, which is an imperative material for construction. Specifically, those that can replace fine aggregate because these days many states have banned the use of river sand so researchers all over the globe looking for a suitable material that can replace river sand and also provide sustainability with better strength results. In this study, bone china cup plate-type ceramic waste powder was utilized as a fine aggregate. Ceramic waste powder (CWP) creates environmental degradation and the use of CWP in concrete as a substitute for natural resources would have a positive result on the environment. In this study, the sand was replaced partially with CWP at replacement levels of 0%, 10%, 20%, 30%, 40%, and 50% by the weighted amount of sand. To evaluate various properties of SCC mixes with CWP, various workability tests (i.e. slump flow, v-funnel, j-ring, and l-box) were performed in a fresh state of concrete, while compressive strength, ultrasonic pulse velocity, flexural strength, and water absorption tests were computed to measure the hardened characteristics of SCC mixes. In SCC mixes, the CWP confederation showed an improvement in mechanical strength of concrete at the 20% CWP placement stages and a decline above 20% CWP replacements in all strength characteristics.