The issues of measuring the thermal conductivity of building materials are considered. A measurement model and formulas for estimating the total standard uncertainty of thermal conductivity measurement are presented.
This article is devoted to the current problem of developing innovative activities in the building materials industry. The country's building materials industry has a significant resource potential, the use of which requires innovative development of the industry. With this in mind, the article proposes innovative directions for the development of the industry under consideration in order to better meet the needs of the economy in modern building materials.
This article provides recommendations for restoring the strength and eliminating defects of brick walls with low strength of buildings and structures used.
The article presents an analysis of prefabricated monolithic ceilings (SMP) of various manufacturers, which have received the most widespread use. The task of reducing the weight of building structures while maintaining the bearing capacity is relevant in modern construction. Prefabricated monolithic construction systems correspond to modern trends, but require special attention and study. The article presents an analysis of the advantages and disadvantages of prefabricated-monolithic slab structures, identified and identified problems of use that require further detailed study to ensure the reasonable use of SMP structures in the construction of buildings and structures
This article provides information about concrete structural defects, factors influencing it, and sources of defects.
The use of superplasticizers in new generation concretes, which have a water-reducing effect and further accelerate the hardening of the mixture at subzero temperatures.
In this article, classification of composite materials, current methods of production of composite materials, their advantages, materials for them, and development of production of composite materials in our country.
In this article, the characteristics of dispersed reinforced concrete, materials for dispersed reinforced concrete, current methods of production of composites based on dispersed reinforced concrete, their advantages and the development of dispersed reinforced concrete production in our country.
In this article, the costs of road pavement repair using modern construction materials widely used in the world experience and the costs of conventional repair are compared.
In recent years, effective additives, like superplasticizers, have become the main topical issue in the study of low water demanding binders in solving the problem of the shortage of Portland cement. Mechanical and chemical activation of the binder, for instance the addition of active mineral compounds, increasing the flexibility of the
cement and expanding the use of superplasticizers, allows saving a great deal of the cement. Factors related to the rise of the cement shortages, the reduction of high quality raw material resources, the growth of industrial waste and environmental problems are the main reasons, resulting in the extensive use of various mineral additives in cement materials.
The purpose of this article is to investigate the strength, ductility and ductility of composite and steel-reinforced flexural elements.
The article deals with the prospects and efficiency of using industrial waste in the production of building materials. And also about the prospects for the development and application of waste-free technology in the industrial and construction industries.
The article presents the results of experimental studies to study the effect on the physical and mechanical properties of foam concrete of the amount of microsilica microsilica of Uzmetkombinat JSC and polycarboxylate superplasticizer VESTA HPR 801 introduced into the composition as a mineral filler. It was revealed that with an increase in the amount of microsilica in the composition of foam concrete to a certain value, the compressive strength of the material first decreases, and then sharply increases. In this regard, by analyzing the regression equation, the optimal values of the prescription indicators of the foam concrete composition were substantiated.
In this article, the construction of tall, multi-story, complex buildings and structures based on ordinary heavy concrete, the construction use of lightweight concrete, as well as the efficiency of light and strong concrete in the field of construction. Detailed information is provide on structural solutions to reduce the labor force as much as possible in the preparation of structures, and at the same time to use lightweight strong concrete instead of heavy concrete.
Today, adding basalt fiber to concrete and modifying it with chemical additives to ensure high durability and operational properties of concrete technology, the process of formation of cement stone structure, and its quality are highly effective.
This scientific article provides brief information about asphaltconcrete, which currently occupies a high position in the construction materials industry, and its role and application in the field of road construction.
The content of this scientific research is related to the study of the positive and negative effects of water added to the composition of a concrete structure, ensuring complete hydration of cement by reducing the amount of water to a minimum and creating a new structure of high-strength concrete.
This article talks about low water requiring cements, which is practiced in scientific laboratories of leading scientific centers and higher educational institutions engaged in the research of mineral binders and materials based on them in the world, reducing the release of carbon dioxide gas into the environment during cement production, the use of local raw materials and industrial waste in cement production, chemical additives and mechanical a lot of scientific and research work is being carried out on the effective use of activation. In this regard, it is important to develop optimal compositions of energy-efficient building materials, low-water demanding binders that allow the economy of Portland cement clinker in cement production, using local raw materials and man-made waste, as well as surfactants, in the scientific research conducted in this regard.
This article analyzes the assessment of the quality and safety of building materials, as well as the production technology of foam concrete and its structure.
This scientific article provides brief information about bitumen, which is considered an organic binder, and its types, the role of this binder in asphalt concrete raw materials.
The article discusses mobile applications that evaluate the smoothness of city roads. Recommendations have been developed for mobile applications that evaluate the smoothness of road surfaces.
This article describes the developments and innovations in the field of construction, in particular, issues of national construction standards, modernization of production, production of new types of high-quality construction materials, work based on new technologies, and expansion of export volume.
In our country, the production of building materials has been developed in terms of energy efficiency improvement in accordance with modern requirements, justification of the possibility of using them for various purposes, saving of energy and resources in production while maintaining their technical properties
In this article, we can see the advantages of agiqtosh-mastic asphalt concrete coating and what features of it are given in depth to adapt it to the climatic conditions of Uzbekistan, and the effect of various stabilizing additives on the physical and mechanical properties of the mixture using the results of the study.
This article presents the results of research on increasing the strength of asphalt concrete pavements used on highways. In order to increase the strength of the asphalt concrete coating, the results of tests conducted in laboratory conditions with the addition of various surface-active additives are presented.