Аңдатпа
A study was conducted on the use of opoka from the Shipovskoye deposit in the Republic of Kazakhstan and thermolite obtained from opoka in road construction. The aim of the study is to develop new technologies for the production of building materials - opoka and thermolite, and their use in road construction. The object of the study is opoka from the Shipovskoye deposit in the Republic of Kazakhstan. The subject of the study is the properties of opoka and thermolite and their work in the composition of the road pavement of category III highways. Scientific hypothesis - opoka from the Shipovskoye deposit in the Republic of Kazakhstan can be used as an independent material or as a thermolite in the composition of the road pavement of category III highways. Scientific novelty - using modern research methods, new data were obtained on the physical and mechanical properties and meneralogical composition of opoka from the Shipovskoye deposit; new data were obtained on the physical and mechanical properties and chemical composition of thermolite obtained from opoka. The theoretical significance of the study lies in obtaining experimental data on the properties of opoka and thermolite, the practical significance of the work lies in using the research results to develop the composition of asphalt concrete mixture based on thermolite and its application in road construction. The main physical and mechanical properties of opoka from the Shipovskoye deposit in the West Kazakhstan region were established. The use of opoka in the construction of a road on the section Uralsk (Republic of Kazakhstan) - the village of Ozinki (Russian Federation) was studied. As a result of the work carried out to study the state of the road section after six years of operation, the advantage of using opoka for the construction of the road base was established compared to clay. A technology for producing thermolite was developed, for which a product quality certificate was received based on the results of the tests. The development of a technology for the production of asphalt concrete mixture based on thermolite for road construction, especially in those areas where there are no deposits of hard rocks for the production of crushed stone, is very relevant. An asphalt concrete mixture composition has been developed using thermolite, which has an advantage in terms of indicators compared to existing analogues, which is confirmed by the results of tests conducted in accredited testing laboratories, permitting the use of the developed asphalt concrete mixture composition for the construction of road surfaces of category III highways.