Evaluation of Ceramic Waste from Goa as SCM

Tourism is a very important contributor to Goa’s GDP. In 2017, 6.9 million domestic tourists and 0.89 million foreign tourists visited Goa. This leads to a need for refurbishment of hotel rooms which is a significant contributor to the C&D waste generation in Goa. Around one ton of waste is on average generated per rehabilitated hotel room. The contents of tiles and bathroom fittings are around 20–25%. In this study, two different ceramic samples (wall tiles and sanitary ware) have been collected from C&D waste dumping sites in Goa. In addition, broken Mangalore roof tiles have been collected as a third ceramic waste. These three ceramics are made from clayey raw materials, most likely kaolin. The samples were split, size reduced and pulverized for the different analyses. In the preliminary study, all samples were analysed for the composition by XRF/XRD, characterized in terms of particle size distribution and tested for pozzolanic reactivity using the R³ test. The reaction products from the R³ test were investigated by XRD and DTA/TG.