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47THE ROLE OF MONOLITHIC REINFORCED CONCRETE CONSTRUCTION
IN MODERN CONSTRUCTION
Otakulov Bakhromjon Abduganiyev Nu'monjon Risolatkhon Gayratjon Adhamovich Nabijonovich qizi Madaminova
Fergana Polytechnic Institute
ABSTRACT
Buildings and structures in the construction complex of developed countries construction on the basis of monolithic reinforced concrete is a topical issue
Keywords: Monolithic construction system, cellular concrete, Monolithic concreting works
Buildings and structures in the construction complex of developed countries construction on the basis of monolithic reinforced concrete is a topical issue. Monolith The construction system is prefabricated with reinforced concrete products and structures When building buildings and structures in the monolithic method, construction time is reduced, installation work is sharply reduced, the strength of the building is increased, there is no need for a warehouse on the construction site. Nowadays, the use of universal molds assembled from light hardened metal and fiberglass instead of heavy metal molds is leading to the further development of the monolithic construction system.
Monolithic reinforced concrete structures are mostly heavy and porous prepared from fillers. The walls of residential buildings are cellular can be built on the basis of concrete. Special structures are monolithic very heavy in construction, heat-resistant, resistant to aggressive environments and other types of concrete are used. Reinforcement for monolithic reinforced concrete is manufactured at the plant in the form of large carcass blocks and nets in the reinforcement shop near the two construction sites. The concrete mix is prepared at the reinforced concrete plant at the concrete mixing center at two construction sites. Factory-made concrete mix can be transported by truck, when the distance is short. Non-layering of concrete mix during transportation is under the influence of atmospheric factors the composition must not change. Especially in the dry hot climate of Uzbekistan prevention of dehydration during transportation of concrete mix is urgent matter.
Currently, the concrete mix in the construction system is dry transported and used directly mixed with water at the facility itself gives very good results. Delivery of concrete mix at the construction site is carried out by crane, conveyor, concrete pump or pipes operated by compressed air. The concrete mix can be transported up to 150 m with the help of tubular transport using compressed air. Monolithic reinforced concrete
structures are poured continuously in the form of two blocks or sections in two cycles. The continuous method is used when there are no seams in the building and construction and special requirements are placed on the concrete composition. The concrete mix is poured in layers and compacted using internal vibrators. Once the concrete mix is poured into the mold, it is maintained until the concrete reaches the strength in the project. In order to ensure the hydration of the cement, it is necessary to keep the temperature and relative humidity at the required parameters. Newly poured when monolithic concreting works are carried out in the spring the concrete surface should be protected from drying out and debris. For this moisture-retaining wood chips, sand, slag powder spraying or polymer The films are recommended to cover with hemp tissue. Templates are removed the vertical part of the concrete is allowed to be sprayed with water.
Pouring monolithic concrete in the dry hot climate of Uzbekistan requires the implementation of special measures. Bunda beton mixing, molding, especially for maintenance work need to pay attention.Highways, airport pavements and the like concrete in the construction of large reinforced concrete monolithic structures with a surface bedding materials for maintenance (polyethylene, polypropylene film, etc.) two film-forming polymers (ethinol lacquer, gelpolymers) are used. When monolithic concreting is carried out in the winter, protection of the concrete mix and hardened concrete from freezing is a key issue. There are various ways to protect monolithic concrete from freezing. These include the temporary wrapping of concrete with thermal insulation materials, the addition of additives (sodium chloride, calcium chloride, etc.) that reduce the freezing point of water in the concrete mix, the "thermos" method. Thermal insulation materials include semi-virgin mineral slabs, fiberglass mats (linings), waterproofing coated arbolite, xelolite slabs, porous fillers, etc. used.
REFERENCES
1. Khomidjonovich, K. B. (2021). Lock Paint Materials. International Journal of Discoveries and Innovations in Applied Sciences, 1(5), 98-99.
2. Бахромов, М. М., Отакулов, Б. А., & Рахимов, Э. Х. У. (2019). Определение сил негативного трения при оттаивании околосвайного грунта. European science,
(1 (43)).
3. Абдукаримов, Б. А., Отакулов, Б. А., Рахмоналиев, С. М. У., & Муродалиева, Н. А. К. (2019). Способы снижения аэродинамического сопротивления калориферов в системе воздушного отопления ткацких производств и вопросы расчета их тепловых характеристик. Достижения науки и образования, (2 (43)).
4. Юсупов, А. Р., Милладжонова, З. Р., Отакулов, Б. А., & Рахимов, Э. Х. У. (2019). К расчёту неравнопрочных термогрунтовых тел на сдвигающие нагрузки. Достижения науки и образования, (2 (43)).
5. Мирзажонов, М. А., & Отакулов, Б. А. (2018). ВЛИЯНИЕ НА ПРОЧНОСТЬ КОНТАКТНОЙ ЗОНЫ РАБОЧЕГО СТЫКА ВРЕМЕНИ ВЫДЕРЖКИ НОВОГО БЕТОНА. In XLIII INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE" INTERNATIONAL SCIENTIFIC REVIEW OF THE PROBLEMS AND PROSPECTS OF MODERN SCIENCE AND EDUCATION" (pp. 22-24).
6. Мирзажонов, М. А., & Отакулов, Б. А. (2018). Восстановление разрушенных частей бетонных и железобетонных конструкций. Достижения науки и образования, (13 (35)).
7. Xalimjon o'gli, S. J. (2021). INFLUENCE ON DURABILITY OF CONTACT ZONE OF WORKING JOINT TIME OF THE ENDURANCE OF A NEW CONCRETE. EPRA International Journal of Environmental Economics, Commerce and Educational Management, 8(5), 1-2.
8. Otakulov, B. A., Abdullayev, I. A., & Sultonov, K. S. O. (2021). RAW MATERIAL BASE OF CONSTRUCTION MATERIALS AND USE OF INDUSTRIAL WASTE. Scientific progress, 2(6), 1609-1612.
9. Tulaganov, A., Hodjaev, S., Sultanov, A., Tulaganov, B., Otakulov, B., Hodjaev, N., & Abdasov, D. (2021). FESTIGKEITSBESCHREIBUNG DES SCHWERBETONS AUF ALKALISCHLACKEN-BINDEMITTEL. The Scientific-Practice Journal of Architecture, Construction and Design, 1(1), 5.
10. Abobakirovich, A. B., Adhamovich, O. B., Ugli, M. B. I., & Qizi, M. N. A. (2019). Increasing the efficiency of solar air heaters in free convection conditions. Достижения науки и образования, (2 (43)).
11. Abdukarimov, B. А., Otakulov, B. А., Mahsitaliyev, B. I., & Murodaliyeva, N. А. (2019). INCREASING THE EFFICIENCY OF SOLAR AIR HEATERS IN FREE CONVECTION CONDITIONS. Достижения науки и образования, (2), 26-27.
12. Otakulov, B. A., Karimova, M. I. Q., & Abdullayev, I. A. (2021). USE OF MINERAL WOOL AND ITS PRODUCTS IN THE CONSTRUCTION OF BUILDINGS AND STRUCTURES. Scientific progress, 2(6), 1880-1882.
13. Otakulov, B. A., Abdullayev, I. A., & Toshpulatov, J. O. O. (2021). IMPORTANCE OF HEAT-RESISTANT CONCRETE IN CONSTRUCTION. Scientific progress, 2(6), 1613-1616.
14. Solijon o'g'li, S. H. (2021). ANALYSIS OF COMPOSITIVE ARMATURES. EPRA International Journal of Multidisciplinary Research, 7(5), 494496.
15. Adhamovich, O. B., & Saydi-axmadovich, Y. B. J. EFFECT OF POLYMERY MONOMORES ON THE STRENGTH OF OLD AND CONCRETE CONCRETES.
16. Otakulov, B. A., Isoyev, Y. A., & Salimjonov, J. H. O. G. L. (2021). ABOUT MONOLITHIC REINFORCED CONCRETE STRUCTURES IN CONSTRUCTION. Scientific progress, 2(7), 722-724.
17. Otakulov, B. A., Isoyev, Y. A., & Salimjonov, J. H. O. G. L. (2021). THE SCIENCE OF BUILDING MATERIALS TAKES PLACE IN ARCHITECTURE. Scientific progress, 2(7), 725-727.
18. Otakulov, B. A., Isoyev, Y. A., & Salimjonov, J. H. O. G. L. (2021). WAYS TO SAVE CERAMICS AND FIRE BUILDING MATERIALS. Scientific progress, 2(7), 718-721.
19. Otakulov, B. A., Isoyev, Y. A., & Sailimjonov, J. X. O. G. L. (2021). IMPROVING THE EARTHQUAKE RESISTANCE AND HEAT RESISTANCE OF BUILDINGS BUILT OF MODERN ENERGY-SAVING MATERIALS. Scientific progress, 2(7), 117-120.
20. Xalikova, I. (2021, March). THE ESTABLISHMENT AND DEVELOPMENT OF JADID NEW METHOD SCHOOLS IN FERGHANA VALLEY. In Конференции.
21. SOBIROVA, D., & MILLADJONOVA, Z. Determination of the Bearing Capacity of Flexible Reinforced Concrete Beams of Rectangular Section with a Onesided Compression Flange on the Boundary Conditions of Concrete and Reinforcement. International Journal of Innovations in Engineering Research and Technology, 7(12), 122-124.
22. Kuzibaevich, M. B., & Nabijonovich, A. N. M. (2021). ANALYSIS OF STUDY OF PHYSICAL AND MECHANICAL PROPERTIES OF VERMICULITE CONCRETE WITH NEW GENERATION COMPLEX CHEMICAL ADDITION KDj-3. International Engineering Journal For Research & Development, 6(3), 5-5.
23. Эргашев, С. Ф., Нигматов, У. Ж., Абдуганиев, Н. Н., & Юнусов, Б. С. А. (2018). Солнечные параболоцилиндрические электростанции-cовременное состояние работ и перспективы использования их в народном хозяйстве Узбекистана. Достижения науки и образования, (5 (27)).
24. Абдуганиев, Н. Н., Мирзаева, Г. С., & Абдуганиев, Н. Н. (2019). Пути интенсивности работы аэратенков с пневматической аэрацией. Universum: технические науки, (12-1 (69)).
25. Kozibaevich, M. B. (2021). STUDY OF THE EFFECT OF NEW SYNTHESED COMPLEX CHEMICAL ADDITIONS ON RHEOLOGICAL PROPERTIES OF PORTLAND CEMENT. Innovative Technologica: Methodical Research Journal, 2(12), 133-137.
