Teoretičeskaâ i prikladnaâ nauka Theoretical & Applied Science 11 (79) 2019 International Scientific Journal Theoretical & Applied Science Founder: International Academy of Theoretical & Applied Sciences Published since 2013 year. Issued Monthly. International scientific journal «Theoretical & Applied Science», registered in France, and indexed more than 45 international scientific bases. Editorial office: http://T-Science.org Phone: +777727-606-81 E-mail: [email protected] Editor-in Chief: Hirsch index: Alexandr Shevtsov h Index RISC = 1 (78) Editorial Board: 1 Prof. Vladimir Kestelman USA h Index Scopus = 3 (38) 2 Prof. Arne Jönsson Sweden h Index Scopus = 4 (21) 3 Prof. Sagat Zhunisbekov KZ - 4 Assistant of Prof. Boselin Prabhu India - 5 Lecturer Denis Chemezov Russia h Index RISC = 2 (61) 6 Senior specialist Elnur Hasanov Azerbaijan h Index Scopus = 7 (11) 7 Associate Prof. Christo Ananth India h Index Scopus = - (1) 8 Prof. Shafa Aliyev Azerbaijan h Index Scopus = - (1) 9 Associate Prof. Ramesh Kumar India h Index Scopus = - (2) 10 Associate Prof. S. Sathish India h Index Scopus = 2 (13) 11 Researcher Rohit Kumar Verma India - 12 Prof. Kerem Shixaliyev Azerbaijan - 13 Associate Prof. Ananeva Elena Pavlovna Russia h Index RISC = 1 (19) 14 Associate Prof. Muhammad Hussein Noure Elahi Iran - 15 Assistant of Prof. Tamar Shiukashvili Georgia - 16 Prof. Said Abdullaevich Salekhov Russia - 17 Prof. Vladimir Timofeevich Prokhorov Russia - 18 Researcher Bobir Ortikmirzayevich Tursunov Uzbekistan - 19 Associate Prof. Victor Aleksandrovich Melent'ev Russia - 20 Prof. Manuchar Shishinashvili Georgia - ISSN 2308-4944 1 1 © Сollective of Authors 9 7 7 2 3 0 8 4 9 4 1 9 5 © «Theoretical & Applied Science» International Scientific Journal Theoretical & Applied Science Editorial Board: Hirsch index: 21 Prof. Konstantin Kurpayanidi Uzbekistan h Index RISC = 8 (67) International Scientific Journal Theoretical & Applied Science ISJ Theoretical & Applied Science, 11 (79), 722. Philadelphia, USA Impact Factor ICV = 6.630 Impact Factor ISI = 0.829 based on International Citation Report (ICR) The percentage of rejected articles: ISSN 2308-4944 1 1 9 7 7 2 3 0 8 4 9 4 1 9 5 ISRA (India) = 4.971 SIS (USA) = 0.912 ICV (Poland) = 6.630 ISI (Dubai, UAE) = 0.829 РИНЦ (Russia) = 0.126 PIF (India) = 1.940 Impact Factor: GIF (Australia) = 0.564 ESJI (KZ) = 8.716 IBI (India) = 4.260 JIF = 1.500 SJIF (Morocco) = 5.667 OAJI (USA) = 0.350 QR – Issue QR – Article SOI: 1.1/TAS DOI: 10.15863/TAS International Scientific Journal Theoretical & Applied Science p-ISSN: 2308-4944 (print) e-ISSN: 2409-0085 (online) Year: 2019 Issue: 11 Volume: 79 Published: 11.11.2019 http://T-Science.org Rustam Alikhanovich Norov Tashkent Institute of Architecture and Civil Engineering PhD, Professor department of “Technology and Organizing Construction” Khamza Ibadovich Yusupov Tashkent Institute of Architecture and Civil Engineering PhD, Professor department of “Technology and Organizing Construction” , Tashkent, Uzbekistan MODERN TECHNOLOGY OF RECEIVING A CONCRETE MIXTURE WITH THE ADDITION OF ACETONE FORMALDEHYDE RESIN AT ERECTION BUILDINGS IN THE REPUBLIC OF UZBEKISTAN Abstract: The article discusses the relevance of the use of mineral fillers, such as glizh and electrothermophosphoric slag. It has been established that mineral additives are advisable to be used in conjunction with the addition of acetone-formaldehyde resin for the preparation of concrete mixtures with high workability with reduced cement consumption. It is proved that the use of mineral fillers increases the strength properties of concrete by reducing the water-cement ratio and by increasing the proportion of cement hydration products. It has been established that the most promising direction of using the developed concrete for structures with high rates of frost resistance and water resistance. Key words: acetone-formaldehyde resin, electrofermophosphoric slag, adsorption, structure formation, water demand, mobility, coarse, water resistance, frost resistance. Language: English Citation: Norov, R. A., & Yusupov, K. I. (2019). Modern technology of receiving a concrete mixture with the addition of acetone formaldehyde resin at erection buildings in the republic of Uzbekistan. ISJ Theoretical & Applied Science, 11 (79), 1-4. Soi: http://s-o-i.org/1.1/TAS-11-79-1 Doi: https://dx.doi.org/10.15863/TAS.2019.11.79.1 Scopus ASCC: 2215. Introduction provides significant savings in cement while One of the most important in the production of improving the technological, technical and concrete and reinforced concrete products is the operational properties of concrete. It has been found problem of all-round saving of material, energy and that with a rational dispersion of 0.15 m2 / g of fillers labor resources while ensuring their high quality. and 0.15% of an ACF additive, cement savings in a Concrete technology currently has a wide range of mixed binder are 28-35%. At the same time, the tools to reduce resource consumption without strength of filled cement stone is comparable to the compromising its technical properties. In this strength of ordinary Portland cement grade 400. Let direction, there is a large amount of experimental and us consider in more detail the effect of glizh fillers and theoretical research, considerable practical experience electrothermophosphoric slag on the properties of has been gained with the use of filler additives, such concrete. as glizh and electrothermophosphoric slag. As a result, Concrete mix with mineral fillers and ADC significant reserves of saving reserves, saving cement, additive in a wide range of workability have less water increasing strength, durability, improving a number of demand with the ratio of sand to crushed stone r = other properties of concrete [1]. 0.33. The plasticizing effect of the combined use of an The combined use of the additive ACF [2] and ACF additive and coarse dispersed fillers manifests fillers from slag and electrothermophosphorus slag itself as a result of a decrease in the total contact Philadelphia, USA 1 ISRA (India) = 4.971 SIS (USA) = 0.912 ICV (Poland) = 6.630 ISI (Dubai, UAE) = 0.829 РИНЦ (Russia) = 0.126 PIF (India) = 1.940 Impact Factor: GIF (Australia) = 0.564 ESJI (KZ) = 8.716 IBI (India) = 4.260 JIF = 1.500 SJIF (Morocco) = 5.667 OAJI (USA) = 0.350 surface, depending on the initial mobility of the stone. On the other hand, the presence of a large concrete mixture. Therefore, as it should be expected, amount of water in concrete provides favorable the water demand of concrete mixtures with the conditions for the hardening of a mixed binder in a mobility of concrete mixtures of 2.6, 10 and 20 cm humid environment. So, if the increase in the strength with fillers of slag (slime) in the amount of 25 and of concrete with slice (slag) at a binder consumption 50% at a binder consumption of 290, 370 and 450 kg of 290, 370 and 450 kg / m3 and P / C = 0.5 and the / m2, decreases by 15 -20 (10-15); 15-25 (11-16); 19- mobility of the concrete mixture 2 cm, respectively, is 28 (17-20)%. 15.35, then for cast concrete the increase is (35 -43%). The water demand of a mixed binder concrete With an increase in the number of fillers up to 50%, mix substantially depends on the adsorption activity the strength of concrete with the addition of 0.15% of the filler. For example, the water demand of a ACP obtained from concrete mixtures with a mobility mixture with slag is 5-10% less than with slag, which of 2-20 cm and a binder consumption of 290-450 kg / is explained by the greater activity of the latter. The m reaches the performance of reference concrete [4, effect of the quantitative content of coarse dispersed 5]. fillers on water demand is manifested depending on The most common glizh portland cement and the flow rate, astringent in the concrete mixture. So, slagport with electrothermophosphorus slag was with a binder consumption of 370 and 450 kg / m, an obtained for the construction of hydraulic structures. increase in the content of fillers from 25 to 50% helps Pozzolanic Portland cement with 30% glizh in to reduce the water consumption of the concrete concrete hardens more slowly than ordinary Portland mixture, regardless of the initial workability. With a cement and acquires 80-85% of the strength of brand binder consumption of 290 kg / m, the water demand at 28 days old. The same applies to slag Portland of the concrete mix with 50% filler is slightly higher cement. Therefore, for concrete for hydraulic than with 25% filling. This increase in water demand purposes, the brand age is extended to 180 days. Thus, is explained by the fact that in such a mixture with a long-term increase in strength is a characteristic such a binder content the proportion of sand increases, feature of concrete on pozzolanic and slag Portland the hydrophilicity of which is significantly higher than cements. The increase in concrete strength is the that of slag and slag. higher, the lower the concrete strength at 28 days of The contribution of coarse dispersed fillers to the age, and concrete on pozzolanic Portland cement with change in concrete strength is determined by the size a decrease in binder consumption has a higher of the part, their adsorption activity with respect to increase in strength over a long time. water and ACP resins. If the reduction in water The effect of plasticizing additives on the growth demand of conventional concrete mixtures, provided of concrete strength over time depends on the they have the same workability, leads to an increase in mechanism of action of surfactants on hydration and the strength of concrete. As a result of the structure- hardening processes. Additives like SDV and START forming action, to a certain maximum content of the do not accelerate the set of concrete strength over filler and a decrease in water demand due to a decrease time.