"Construction Materials Based on Gypsum Hydrate Cakes Obtained from Krastsvetmet JSC "
Abstract
"Construction Materials Based on Gypsum Hydrate Cakes Obtained from Krastsvetmet JSC "
Incoming article date: 15.12.2023The paper presents the results of research on the application of gypsum hydrate cakes, the waste products of the refining process at the Krastsvetmet non-ferrous metals plant, for the production of construction materials. The study examined pasty cakes for use in building mortars, and after drying and grinding, the resulting cake powder was further used as a fine filler in asphalt concrete mixes. The optimal composition of the construction mortar was determined using a mathematical method of experimental design. The construction mortars were prepared based on cement and local mineral materials. The study demonstrated that it is possible to get construction mortars of the required strength based on the cakes. The cake powder obtained after drying was examined as a mineral powder for asphalt concrete. Tests showed that the cakes met the requirements for grade MP-3 mineral powders in all aspects. Asphalt concrete incorporating the cakes also met the regulatory standards for its key properties. Based on the research results, the optimal compositions of mortars and asphalt concrete were recommended for implementation to construction companies in the Krasnoyarsk Krai.
Keywords: waste products, cakes, construction mortars, compositions, properties, regression equations, durability, water retention capacity, segregation, mineral powder, asphalt concrete