The Design and Development of Terra Cotta for the Pottery Community: A Case Study of Ban Ma Ying Community

Abstract

The purpose of this research is to study and improve the clay preparation process used in making Ban Ma Ying community pottery and find the appropriate mixture ratio for molding clay from local raw materials of the Ban Ma Ying community. Using local ingredients from Ban Maying, Pho Thong Sub-district, Tha Sala District, Nakhon Si Thammarat Province. From the cooperation of producers and distributors in the community, 11 households were burned at temperatures of 800-900 degrees Celsius in an oxidative atmosphere, mix the modeling clay using a clay rolling machine and used to knead the clay into shape by hand, evaluation and analysis of both qualitative and quantitative results were made. By experimenting with surveys and experiments. The results of the research found that 1) the process of shaping local terra cotta products in the Ban Ma Ying community resulted from improvements in the steps: (1) clay preparation, (2) milling or mixing clay, and (3) kneading methods. clay and 2) the appropriate mixing ratio of the Ban Ma Ying community terracotta clay has a mixing ratio of Field Nam Khem clay: narrow water sand: rice husk ashes equal to 70 : 20 : 10 has the most appropriate properties from physical testing in all 5 areas, namely (1) results of physical testing of molding clay in terms of general characteristics, molding clay texture has Characteristics: Fine clay texture. It is very tough and the color before firing is dark brown. The color after firing is brick brown. (2) The results of the physical test of the clay for the moisture side were equal to 30.00 percent. (3) The results of the physical test of the clay for the shrinkage were equal to 9.00 percent. (4) The results of the physical test of the clay were 9.00 percent. Physical properties of clay: toughness Before firing, it was twisted and curved moderately, very stable shape, no cracks. And after firing, it retains the most shape. No cracking and (5) physical test results of the clay for water absorption. equal to 2.04 percent.