In this article, the development of a technology for the production of clinkers and cements based on them using previously unexplored alternative sources of local raw materials in Karakalpakstan is studied, is an effective solution to the problem of covering the cement industry’s construction industry needs. Development of practical recommendations on the technology for obtaining Portland cement clinkers and cements based on the raw materials of Karakalpakstan. The study of the chemical and mineralogical composition of the raw materials of Karakalpakstan with the aim of their application to obtain high-quality clinkers and cements based on them. For raw mixes, which include limestone from the Dzhamansay-2 deposit, the clay component of the Berkuttau site, an iron-containing cinder from Almalyk mining-and-metallurgical integrated works, and gypsum stone from the Northern Dzhamansay deposit, the optimal firing temperature is 1450 ° C, which corresponds to the classical temperature index Portland cement clinker production. Raw mixtures based on the tested raw materials are highly reactive. When firing two-component feed mixtures using limestone of the Dzhamansay-2 deposit and basalt rock of the Berkuttau section, the optimum clinker sintering interval is 1400-1420 ° C;. Physical and mechanical tests have established that, on the basis of the tested raw materials (limestone of the Dzhamansay-2 deposit, the clay component of the Northern Dzhamansay deposit, the basaltic rock of the Berkuttau site and iron-containing additives), clinkers can be produced for general construction and sulfate-resistant cement grades of at least “400”, according to technological indicators fully meeting the requirements of State standard 10178; State standard 30515 and State standard 222 66.

In the Republic of Karakalpakstan, there are large reserves of unprocessed mineral building materials, which necessitate the development and targeted support of building materials manufacturing industries, which may become one of the engines of economic growth, further modernization, and diversification of the region’s industry. This article examined the chemical and mineralogical composition of technological samples of the clay component of the North Jamansay deposit. The results of determining the mineralogical composition of the averaged technological sample of clay from the Dzhamansay deposit are in good agreement with the data of chemical analysis. The heating curve of the averaged clay sample of the Dzhamansaysky deposit is marked by fourteen endothermic effects. The total weight reduction in the temperature range (60–900) °C according to the thermogravimetric curve is 9.53%. On the DTA curves of the clay of the Dzhamansayskoye deposit, endo effects associated with absorbed and ciolet water were identified, as well as endo effects corresponding to the gradual removal of constitutional water from the clay component, accompanied by destruction of the crystal lattice. Electron microscopic analysis of clay showed that the presence of particles of various sizes having a surface with rhombohedral protrusions. This can be seen both on the chips and on the surface of the particles, where rhombohedral protrusions characteristic of quartz are reflected. The chemical composition of the technological sample of the clay component of the North Jamansay field in terms of the content of regulated oxides (SiO2 = 62.64; Al2O3 = 17.54; MgO = 2.00; SO3 = 1.21; TiO2 = 0.46; P2O5 = 0, 25; R2O = 3.68)% meets the requirements of O’z DSt 2950: 2015 for the chemical composition of aluminosilicate (clay) raw materials used in the production of Portland cement clinker.

Based on the above studies, the following conclusions can be made: The introduction of hydraulic additives into Portland cements increases their sulfate resistance, especially when cements have higher C3A content. Cements with 30% tuffite give better strength than those with 20% tuffite. The least aggressive for pozzolanic Portland cements are 5% Na2SO4 solution, the most aggressive is 3% MgSO4 solution, in which cements with hydraulic additives were more resistant than pure Portland cements, which is in agreement with the data of other researchers. For sulfate-resistant pozzolanic Portland cement maximum C3A content in the original Portland cement can be increased up to 8%.