ENHANCING THERMAL AND FIRE RESISTANCE IN MULTILAYER LOW-CARBON BUILDING STRUCTURES: MATERIAL PERFORMANCE AND DESIGN OPTIMIZATION

Аннотация

This article provides a comprehensive analysis of thermal conductivity, thermal and fire resistance properties in buildings. Given the importance of effective insulation materials in the design and construction of modern buildings today, their temperature dynamics and thermal conductivity coefficients are evaluated and analyzed. In addition, each thermal resistance, application possibilities and fire resistance properties in multilayer structures are also considered. The main purpose of the article is to determine the effectiveness of materials used in multilayer structures and to improve their quality in building construction. Keywords: Multilayer structures, thermal conductivity, thermal properties, fire resistance. Currently, a wide range of measures are being implemented in the world to further deepen economic reforms in the building materials industry and accelerate the development of the industry, increase the production of new modern building materials, structures and products, and expand their types, and certain results are being achieved. Expanding the types of building materials produced, increasing the share of modern, convenient and high-quality products produced on the basis of the localization program, and, in turn, reducing imports, and further developing the industry remain urgent issues today. Particular attention is paid to the development of new compositions of building materials, and the creation of new compositions of multifunctional additives based on technogenic waste for the production of building materials is one of the important tasks of research in this direction. The development of new compositions of multifunctional additives and highly effective building materials with their participation is of great importance in substantiating relevant scientific solutions in the following areas: creating new methods for the production of building products based on technogenic additives, using new compositions to obtain multifunctional building materials with the participation 71 DEVELOPMENT OF PEDAGOGICAL TECHNOLOGIES IN MODERN SCIENCES International scientific-online conference of secondary raw materials, increasing the strength indicators of heat-resistant and refractory building materials, optimizing the composition of raw materials to obtain low-energy building materials, modernizing the production technologies of heat-resistant and refractory building materials, and using local, alternative sources of active mineral additives to increase their volume. In our republic, comprehensive measures are being implemented to produce high-quality building materials, modernize the economy and create new production capacities aimed at ensuring the demand for them. The Development Strategy of New Uzbekistan for 2022–2026 sets the tasks of “developing production sectors, modernizing and diversifying the industry, applying low- energy-saving methods in practice, developing the industry of building materials with polymer content, and producing import-substituting and export-oriented products.” In this regard, scientific research aimed at developing new compositions of multifunctional additives based on technogenic waste in the production of building materials and new types of highly efficient building materials with their participation is of great importance. Regarding the improvement of methods for increasing thermal and fire resistance properties in buildings, It serves to implement the tasks set out in the Resolutions of the President of the Republic of Uzbekistan No. PQ-4198 dated February 20, 2019 “On measures for the radical improvement and comprehensive development of the building materials industry”, No. PQ-4335 dated May 25, 2019 “On additional measures for the accelerated development of the building materials industry”, No. PQ-4992 dated February 13, 2021 “On measures for further reform and financial soundness of chemical industry enterprises, development of the production of high-value-added chemical products” and No. PQ-99 dated January 24, 2022 “On measures for the creation of an effective system for the development of production and expansion of industrial cooperation in the republic”, as well as other regulatory legal acts related to the activities of this sector. Today, the issue of extending the service life of buildings is gaining importance. Therefore, the thermal conductivity and fire resistance properties of their structures are extremely important in the design of buildings. Multi- layer structures are widely used to effectively solve these problems. This article analyzes the main properties of CSPs, and their thermal insulation, thermal stability and fire resistance aspects are studied[1-3]. 72 DEVELOPMENT OF PEDAGOGICAL TECHNOLOGIES IN MODERN SCIENCES International scientific-online conference Multi-layer barrier structures consist of different materials, each layer performing a different function. In general, CCPs consist of the following elements: -The outer layer (external or