This article is analyzing problems of speech and communication in the works of Central Asian philosophers in the middle ages through language. In the mental life of a person, the speech performs many important functions. These include notation of functions, generalization, abstraction, communication, and related impact and expression. Interest in the problem of communication and speech has its roots from ancient times. This problem has always attracted researchers' minds, in particular, the great thinkers of Central Asia in the middle ages, who observed, analyzed, and explained the processes of relationship, mutual understanding between people, their interaction from the time when an immemorial man faced when encountering others. The works of medieval scholars of Central Asia including Al-Farabi, Al-Beruniy, Ibn Sina, Omar Khayyam, Yusuf Balasagyn, Ahmet Yagnaki consider the concepts of speech and communication, their functions, the relationship with language and thinking, the origin of language and speech, speech properties of the individual, speech culture, etc.

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The use of accumulated waste from the production of basalt fibers from local raw materials in the production of composite materials contributes to the rational use of natural basalt and forms an additional raw material base. In this work, waste products from the production of basalt fibers, having a fractional composition with sizes less than 0,315 mm, were used as a composite filler. Using the plastic molding method, prototypes of ceramic composites based on waste products from the production of basalt fibers were obtained. Further, by the methods of physical and technical tests, an experimental study was carried out to determine the physical and mechanical properties of the resulting composite material. The method of least squares was used to process the experimental data obtained as a result of physical and technical tests of the samples. It has been established that the strength of the ceramic composite increases with the maximum amount of waste of the basalt melt fractions less 0,315mm and high firing temperature.