RESEARCH OF CONCRETE SAMPLING OBTAINED FROM CERAMIC WASTE

Abstract

The presented research work refers to the study of the properties of heat-resistant concrete made with ceramic tile waste produced by the "Gilan Seramic" plant. The possibilities of using ceramic scraps and some physico-chemical properties, application and advantages of heat-resistant concrete are specifically shown in this work. In the obtaining of concrete, waste ceramics were used instead of natural raw materials. Waste ceramic replaced gravel 25%, 50%, 75%. Concrete samples were prepared according to the M400 brand concrete production technology. Waste concrete samples were prepared in molds in the forms of a cube with dimensions of 40×40×40 mm, a rectangular 40×40×160 mm parallelepiped, and a 40×100 mm cylinder. Concrete samples were analyzed after 28 days of hardening. The concrete samples obtained on the basis of waste ceramics were subjected to the settling test according to the standards, the average density of the concrete mixture was determined, the bending strength, the compressive strength, and the temperature resistance were studied. As a result of the research, it was found that all the concrete samples obtained belong to the light concrete class. The limit of temperature resistance of prepared concrete samples is one of the main goals of the research. In this study, a BioBas MX8-13T model muffle electric furnace with a maximum operating temperature of 1300 ºC was used. At each target temperature, the samples were kept for 1-1.5 h, and at the next stage, they were gradually cooled under control. After cooling, the structure of the samples was analyzed, and the samples with positive results were subjected to the next temperature test. Concrete samples reacted differently to various temperature ranges.