Vol. 4 Issue 1

Archives Journal Construction Materials and Products Vol. 4 Issue 1

UTILIZATION OF GYPSUM-BEARING WASTES IN MATERIALS OF THE CONSTRUCTION INDUSTRY AND OTHER AREAS

https://doi.org/10.34031/2618-7183-2021-4-1-5-17
Abstract
Rational environmental management is one of the priorities of the technological development of the Russian Federation and most countries of the world. Particularly important in this area is the work undertaken with previously generated and accumulated waste, a whole group of which is gypsum-bearing wastes (GBW), which includes by-products of various industries: phosphogypsum, borogypsum, chlorogypsum, ferrogypsum, citrogypsum, vitamin gypsum, etc. GBW features are similar compositions, prevalence, perennial volumes of stored reserves with stable dynamics of annual growth. This determines the relevance of research on the development of a unified methodology for converting GBW of various types into target products particularly for construction purposes, providing maximum energy efficiency and minimal generation of secondary waste. The starting point of the research is the monitoring of approaches developed by the scientific community which are presented in the article. It is shown that researchers are exploring several main areas of GBW conversion: components of Portland cement and clinker; single and multicomponent binders; direct raw materials for the production of building materials; and road construction. The latter two directions have the greatest potential capacity for the consumption of GBW. The general level of research on the issue is not exhaustive, but has the potential to improve on existing methods of processing and application and promote the search for new and more efficient methods.
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COMPARISON OF CAD AND BIM TECHNOLOGY EFFICIENCY WITH THE USE OF A MATHEMATICAL MODEL

https://doi.org/10.34031/2618-7183-2021-4-1-18-26
Abstract
The article reveals definitions and the entity of computer-aided design and building information modeling. The content and effect of using information modeling at various phase of the life cycle of a real estate object are described in the article. The level of BIM applying in Russia is analyzed, data is obtained that the majority of AEC organizations do not use information modeling. A comparative evaluation of the applying of various CAE systems using mathematical modeling in the MATLAB environment using the Fuzzy Logic Toolbox extension package is carried out. Based on the obtained results, we can make a conclusion about the effectiveness of using building information modeling. The information in this article is relevant for designers, real estate investors, and leaders of AEC organizations. The obtained evaluation of project technology is able to induce stakeholders to analyze alternative technology of project and estimate the expediency of Russian enterprise's transition to the use of BIM technology.
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ANALYSIS OF THE INFLUENCE OF INDUSTRIAL WASTE IN THE FORM OF CERAMIC CHIPS CRUSHING DROPOUTS ON THE MAIN PROPERTIES OF CEMENT COMPOSITES

https://doi.org/10.34031/2618-7183-2021-4-1-27-34
Abstract
During the implementation of the program to restore the housing stock of the Chechen Republic, as well as during the planned demolition of dilapidated housing, significant volumes of technogenic raw materials were generated, in particular, large volumes of brick and concrete scrap. Enterprises for the production of building materials and products also produce significant volumes of production defects, which accumulate over the years at landfills. Ceramic broken brick and broken brick dropouts are used to fill the roadbed, and the main part still goes to the dump and landfill, which is also an environmental problem. One of the promising ways to use dropouts and broken brick itself is to use them as secondary aggregates in concrete and mortars. This article discusses the issues of improving the quality of ceramic concrete mixtures, choosing the optimal composition and technology for mixing concrete mixtures using dust fractions of dropouts for crushing ceramic brick bricks.
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DETERMINATION OF THE TRANSSHIPMENT CAPACITY OF THE RAILWAY STATION AND MEASURES TO ENSURE IT IN THE REQUIRED VOLUME BY INSTALLING TEMPORARY LOADING AND UNLOADING DEVICES

https://doi.org/10.34031/2618-7183-2021-4-1-35-44
Abstract
In view of the fact that recently the economic cooperation between Russia and Iran in a number of production areas of the raw materials sector is expanding its program, the provision of mineral extraction with specialized and auxiliary equipment is being carried out. The paper deals with the organization of the delivery of cranes of Russian production on the automobile base of the type "Ivanovets" KS-6476 in the composition of 40 units to the objects of ore mining. Transportation of cranes by rail on the route: St. Petersburg (Russia)-Julfa (Azerbaijan) – Bandar Abbas (Iran) is justified. For transportation on the railways of Russia, the paper considers long-wheelbase platforms of model 13-491, on bogies of 1520 mm gauge. In order to comply with the dimensions on the railways of Iran, the transporters with a reduced floor level of the model 14-T116 on trolleys of 1435 mm gauge were selected. The reloading of equipment is planned to be carried out at the Julfa railway station of the Azerbaijan Railway. The results of the research, in our opinion, are certainly of practical importance for the transport industry, as the developed and proposed designs of loading and unloading devices allow for the reloading of equipment without the use of crane equipment using always available stocks of materials at cargo stations.
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