Output of Recycling Glass in Glaze Mixtures

Abstract

Abstract

The study aims to test whether the inclusion of crushed glass in ceramic glass mixtures could suitably address the lack of smelting agents available among Sudan's natural resources. The sample tested was soda lime glass. It was first tested by EDS to determine its chemical composition and breakdown. It was then ground in a ball mill and passed through a 250-micron sieve. Local materials were used along with the sand, such as nepheline syenite, wood ash, limestone quartz and kaolin. All obtained composites were tested with XRF. Standardized material such as borax, tin oxide, potassium feldspar, chromium oxide, and cobalt oxide were also used. Mixtures consisting various amounts of the materials mentioned were produced and applied to burned ceramic surfaces and brought to temperatures between 1120˚ and 1240˚C in the test oven. The resulting materials were subjected to a variety of tests such as acid – erosion resistance, cracking, and hardness. The study concluded that soda lime glass gives glazes with different properties which are suitable for earthenware and stoneware. Furthermore, it has apositive effect in improving the hue and color of the material oxides used except for that of iron.