This work examines the main regularities in the formation of cement stone structure and the relationship between the properties of concrete mixes with various fillers and highly compressed materials obtained through the hyperpressing method. The objective of the study is to develop an efficient technology for producing construction materials using local, including non-standard raw materials and industrial waste, which is important both from an environmental and economic perspective. The experiment investigates the use of semi-dry pressing and hyperpressing to form concrete mixes with improved performance characteristics. It is assumed that during the pressing process, especially under hyperpressing conditions (pressures above 40 MPa), intensive interaction occurs between particles forming macroparticles, which contributes to a stronger cement stone structure. The involvement of Van der Waals forces and valence bonds between filler particles and hydrated clinker minerals, as well as molecular interactions, is considered the key mechanism for enhancing the strength and durability of the material. An important aspect is the use of low-plasticity clays, overburden rocks, and industrial waste, which significantly reduces production costs and improves environmental sustainability. The study also emphasizes that the hyperpressing technology helps reduce the technological cycle time, lowers specific energy consumption, and improves economic efficiency, making this technology promising for the production of environmentally friendly construction materials. The work contributes to the development of new methods for using secondary and local materials in construction, opening up new opportunities for improving the efficiency and sustainability of construction materials production.
Sultan I. Akhmedov – PhD, Professor, Head of the Department of Construction and Environmental Protection, Tashkent University of Architecture and Civil Engineering, Tashkent, Republic of Uzbekistan
Madaminjon M. ugli Pulatov – Basic doctoral student, Department of Construction and Environmental Protection, Tashkent University of Architecture and Civil Engineering, Tashkent, Republic of Uzbekistan
Khursand M. Saburov – PhD, Acting Associate Professor at the Department of Construction and Environmental Protection, Tashkent University of Architecture and Civil Engineering, Tashkent, Republic of Uzbekistan
Alisher U. Auesbaev – PhD, doctoral student, Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan, Tashkent, Republic of Uzbekistan; Berdakh Karakalpak State University, Nukus, Karakalpakstan, Republic of Uzbekistan
Ikromjon I. Siddikov – Doctor of Technical Sciences, Associate Professor, Department of Construction and Environmental Protection, Tashkent University of Architecture and Civil Engineering, Tashkent, Republic of Uzbekistan
Temirbek Kh. Naubeev – Doctor of Chemical Sciences, Associate Professor, Head of the Department of Oil and Gas, Berdakh Karakalpak State University, Nukus, Karakalpakstan, Republic of Uzbekistan
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