Issues of Rational Use of Waste in the Production of Building Materials

This article presents an analysis of the ways of using glass production waste in the production of concrete with an assessment of the possibility of using glass-grinding clay.The use of modern technological approaches in the molding of products can significantly improve the quality of concrete and increase its conservation of natural resources, the use of waste and glass is to produce concrete with improved properties by adding waste to concrete

The Development of Deformation in Concrete and Reinforcement in Concrete Beams Reinforced with Fiberglass Reinforcement

This article presents experimental data on the development of deformations in longitudinal reinforcement and concrete in the compressed zone of the section of bent concrete beams made of ordinary heavy concrete, equipped with fiberglass composite reinforcement under the action of transverse forces

STRESS-STRAIN STATE OF THIN-WALL SPATIAL COATINGS UNDER VARIOUS DESIGN SOLUTIONS OF CONTOUR STRUCTURES AND SHELL PLATES

The scientific article presents the problems of studying the stress-strain state of contour structures and shells of thin-walled spatial coatings due to their joint work. Factors of changing the design solutions of contour diaphragms (bars) are given to study their joint work with shells. The issue of ultimate stresses and deformations of concrete in the biaxial stress-strain state of thin-walled spatial coatings in their corner zones is also considered. The factors of joint work of contour structures and shells for scientific research are established

Enclosing structures of a porous structure with polymeric reagents

This article is devoted to the use of the polymer K-9 reagent in porous claydite-ash concrete and the design of its optimal composition according to the general design method of the optimal composition of the general theory of artificial building conglomerates (ISC). The data of experiments confirming the positive effect of the polymer reagent on increasing the durability, improving the moisture and heat engineering modes of porous concrete are presented

Crack resistance of bent concrete structures with fiberglass reinforcement

This article presents experimental data on the appearance and development of normal and oblique cracks in relation to the longitudinal axis of the element under the influence of transverse loads on bending concrete beams equipped with shishaplastic Composite fittings made of ordinary heavy concrete

Method of experimental research of concrete beams with fiberglass reinforcement for bending

This article presents a methodology for experimental studies of bent concrete beams made of ordinary heavy concrete, equipped with fiberglass composite reinforcement, and data on methods for measuring the arising deformations, cracks, and deflections of prototypes of beams under the action of transverse forces

Capillary permeability of concrete in aggressive dry hot climate

The article presents the results of studies carried out to determine the capillary absorption (Wsuc) of a saline solution during evaporation and to establish a cyclic temperature regime. It has been established that for a reliable assessment of the capillary permeability of concrete in a dry hot climate, it is sufficient to subject the samples to 60 cycles of preliminary alternating heating and cooling, followed by testing in a climatic chamber for capillary absorption of a salt solution at a temperature of 40 °C and a relative humidity of 30%

Land use and land cover change dynamics of Uzbekistan: a review

Land use and land cover change (LULCC) is a dynamic process that shapes landscapes, ecosystems, and human societies. In the context of Uzbekistan, a country in Central Asia, LULCC has been driven by a complex interplay of socio-economic, political, and environmental factors. This review provides a comprehensive analysis of the historical trajectories, drivers, and implications of LULCC in Uzbekistan. Through the synthesis of diverse data sources including remote sensing imagery, government reports, and peer-reviewed literature, we trace the evolution of land use patterns over time. Agricultural expansion and industrial development have reshaped land cover, impacting biodiversity and ecosystem services. We discuss the intricate web of drivers behind these changes, encompassing demographic shifts, policy alterations, and economic priorities. Moreover, we explore the socio-economic consequences of LULCC, addressing both opportunities and challenges posed by urbanization and agricultural intensification. The interactions between LULCC and climate patterns are examined, underlining the need for climate-conscious land use planning. Drawing on these insights, we emphasize the importance of sustainable land management and evidence-based policy formulation to mitigate negative impacts and maximize benefits. This review underscores the need for continued research, adaptive strategies, and collaborative efforts to address the complex and evolving dynamics of LULCC in Uzbekistan

ISSUES OF IMPROVING THE ECONOMY OF BUILDING MATERIAL - WOOD PRODUCTION

This article is devoted to improving the construction economy by increasing the strength of wood growing in the conditions of Central Asia and their large – scale use in the construction production industry

OPTIMIZATION OF CORROSION-RESISTANT CONCRETE WITH CHEMICAL ADDITIVES

Currently, due to the rapid development of the construction industry, the demand for concrete and reinforced concrete structures made using portland cement is increasing. In this regard, one of the priority tasks of the building materials production industry is aimed at modernizing production technologies, improving the quality of manufactured products, and increasing their durability, using chemical additives in the production of concrete and reinforced concrete structures, without reducing their strength