Учебники 80346

69.003.13

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ASSESSMENT OF PRIORITY PROPERTIES OF CLAY RAW

MATERIALS FOR PRODUCTION OF CERAMIC BRICK

A.M. Usachev*, .V. Alymova

Voronezh State Technical University, Russian Federation,

394006, Voronezh, ul. 20-letiia Oktiabria, 84

*Corresponding author: Alexander M. Usachev, E-mail: usachevam@vgasu.vrn.ru

The main means of product quality management in the construction industry is the state standardization. The main attention is paid to the development of standards not only for materials and products that are the final products of the industry, but also for raw materials, semifinished products, testing methods and quality assessment. Clay is used as the main raw material for the production of ceramic bricks. Despite the fact that clay is a fairly common breed of sedimentary origin, the quality of clay raw materials does not always meet the requirements of manufacturers. The subject of the study is the method of determining the competitiveness of clay raw materials for the production of ordinary ceramic bricks for a particular enterprise. The scientific novelty of the work consists in determining the effective source of raw materials by solving a complex multi-criteria problem with a variety of interrelated criteria. This article discusses the branch of production of ordinary ceramic bricks, as a possible source of clay raw materials contains the following fields: Verkhnyaya Khava, Terbuny, White Well Road. For enterprises producing ceramic products, it is crucial to choose such a source of natural raw materials, which is able to ensure the production of high-quality raw materials at the lowest cost for the development of non-exploited deposits and the minimum cost of transportation of raw materials from the place of localization of the source to the point of processing. The choice of an effective source of raw materials is a complex multi-criteria task, the solution of which depends on the action of a set of interrelated criteria. In this work, the research on the ranking characteristics of clay raw materials and the main characteristics of ordinary ceramic brick. The practical value lies in the algorithm for calculating the effective source of raw materials for any enterprises producing ceramic products. The reliability of the results obtained is ensured by the use of scientifically based methods, probabilistic and statistical methods of processing the results; the use of certified laboratory equipment; the comparability of the results with previous studies of other authors.

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2000. . 56-65.

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. 2009. № 8. . 320-

324.

: . . . .

,2006. 148 .

4.Cultrone G.et. al (2001). Carbonate and silicate phase reactions during ceramic firing. Eur. J. Mineral., 13, P. 621-634.

5.Serra M.F. et. al (2013). Firing transformations of an argentinean calcareous commercial clay. Ceramica, 59, P. 254-261.

6.Trindade M.J. et. al (2009). Mineralogical transformations of calcareous

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rich clays with firing: A comparative study between calcite and dolomite rich

clays from Algarve, Portugal. Applied Clays Science, 42, P. 345-355.

References

1.Sokolov V.N. Clay rocks and their properties / the Science of the Earth. M.:2000. P. 56-65.

2.Lappo, E.A., Akulova I.I. Method and algorithm of selection of effective source of natural raw materials for the production of building materials, products and constructions // Vestnik of the Central regional branch of the Russian Academy of architecture and construction Sciences. 2009. No. 8. P. 320-324.

3.Lappo, E.A. evaluation of the influence of potential raw material base for the effectiveness of the construction materials industry: dis. kand. Ekon. Sciences. Voronezh, 2006. 148 p.

4.Cultrone G.et. al (2001). Carbonate and silicate phase reactions during ceramic firing. Eur. J. Mineral., 13. P. 621-634.

5.Serra M.F. et. al (2013). Firing transformations of an argentinean calcareous commercial clay. Ceramica, 59. P. 254-261.

6.Trindade M.J. et. al (2009). Mineralogical transformations of calcareous rich clays with firing: A comparative study between calcite and dolomite rich clays from Algarve, Portugal. Applied Clays Science, 42. P. 345-355.

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666.972.5

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ASSESSMENT OF THE COMPETITIVENESS OF THE CHEMICAL

ADDITIVES IN CONSTRUCTION

R.S. Batoyan

Voronezh state technical University, Russian Federation, 394006, Voronezh, 20-letiya Oktyabrya str., 84

orresponding author: batoyan Rafael, E - mail: boriow.borya2013@yandex.ru

The results of the evaluation of the competitiveness of traditional chemical additives and complex modifiers of the new generation in the factory production of reinforced concrete structures and monolithic construction. The methodology is implemented in three stages. First: selection of the list of consumer and economic properties, assessment of their significance for the consumer. Second: calculation of a single indicator of competitiveness for each property and product. Third: calculation of indices and relative indices of competitiveness of productscompetitors. It is recommended to use as a reference abstract product with the best values of consumer properties of all products of different manufacturers included in the review. As a result of the calculations revealed that the complex modifiers (modifier "Enterprise Master Concrete" MB-01, nanomodifiers on the basis of SiO2 and CNTS), have great potential of competitiveness, since their impact extends throughout the complex of consumer properties. Currently, their high competitiveness potential cannot be realized due to their high prices compared to traditional chemical additives. It is established that the cheapest additives both for monolithic construction and for factory production are the most competitive so far

Keywords: chemical additives, competitiveness, evaluation methodology, consumer properties, factory production, monolithic structure

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