Optimization of physical and mechanical properties of porcelain tiles from coffee parchment husk ash
Coffee parchment husk ash (CPHA), a product from coffee processing was found to have similar fluxing oxides as are found in feldspars. CPHA is produced in large quantities through the combustion of coffee parchment in industries to produce energy for drying purposes. CPHA is commonly disposed of in landfills and open fields, causing pollution to the environment and ecosystems. In this work, response surface methodology (RSM) was used for optimization...