Науковий вісник НГУ

Long-term thermal productivity of polystyrene concrete in a new composite wall in a fixed formwork

• 
• 

User Rating:  / 1

PoorBest 

Details

Category: Content №3 2023

Last Updated on 27 June 2023

Published on 30 November -0001

Hits: 2591

Authors:

O.I.Meneylyuk, orcid.org/0000-0002-1007-309X, Odesa State Academy of Civil Engineering and Architecture, Odesa, Ukraine, e mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

K.I.Bochevar, orcid.org/0000-0003-4589-8080, Odesa State Academy of Civil Engineering and Architecture, Odesa, Ukraine, e mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O.L.Nikiforov*, orcid.org/0000-0001-7002-7055, Odesa State Academy of Civil Engineering and Architecture, Odesa, Ukraine, e mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

^* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2023, (3): 066 - 074

https://doi.org/10.33271/nvngu/2023-3/066

Abstract:

Purpose. Determination of the term of long-term thermal productivity of expanded polystyrene concrete in a new composite frame wall in a fixed formwork.

Methodology. Methods of analysis and synthesis were used to conduct a patent search and develop a research methodology. The search was conducted using the patent database of Ukrainian Institute of Scientific and Technical Expertise and Information. Experimental studies were carried out in accordance with State Standard of Ukraine B V.2.7-38-95. The essence of the experiment consisted in reproducing the natural conditions of the “freeze-thaw-heat” cycle and measuring the thermal insulation characteristics of the main insulating material – polystyrene concrete – before and after the tests. Based on this, a conclusion was made about the long-term thermal productivity of the expanded polystyrene concrete in a new composite wall in the fixed formwork. The calculation of the dependence of thermal productivity on the number of cycles was carried out by arithmetic means using standard methods and programs such as Microsoft Excel.

Findings. New technical solution of a composite wall made of expanded polystyrene concrete in a fixed formwork using light steel thin-walled structures has been created. A methodology for researching the long-term thermal productivity of this composite wall has been developed. An experimental study was conducted to research the influence of cyclic temperature changes (“freeze-thaw-heat”) on the long-term thermal productivity of the main heat-insulating element of the composite wall – expanded polystyrene concrete. An appropriate analytical model of the dependence of long-term thermal productivity of expanded polystyrene concrete samples on the number of “freeze-thaw-heat” cycles was calculated. The possibility of effective operation of the structure was confirmed by checking the normative values of the resource index and the factor of climatic destruction influence of materials during operation on their long-term thermal productivity. Implementation of a new composite wall solution in construction was conducted.

Originality. For the first time, the dependence of cyclic temperature effects on the long-term thermal productivity of expanded polystyrene concrete in a new composite wall made in a fixed formwork using light steel thin-walled structures was determined, which made it possible to establish its effective operation life. This scientific result makes it possible to reduce material consumption, ensure economy, increase operational reliability and energy-efficient properties, and increase the service life of the composite wall.

Practical value. New solution for installing a composite wall made of expanded polystyrene concrete in a fixed formwork using light steel thin-walled structures was developed and its effective thermal operation within the legally established term was substantiated. The period of effective exploitation of expanded polystyrene concrete as the least durable component of a composite wall is substantiated. Approbation of this design was carried out by installing it on a real construction site, which showed an increase in the manufacturability of construction processes compared to traditional enclosing structures.

Keywords: composite wall, operating life, expanded polystyrene concrete, light steel thin-walled structures, fixed formwork

References.

1. Ubi Stanley, E., Okafor, F. O., & Mama, B. O. (2020). Optimization of Compressive Strength of Polystyrene Lightweight Concrete Using Scheffe‟s Pseudo and Component Proportion Models. SSRG International Journal of Civil Engineering, 7(6), 21-35. https://doi.org/10.14445/23488352/IJCE-V7I6P103.

2. Wattick, J. A., & Chen, A. (2017). Development of a prototype fiber Reinforced Polymer – Concrete Filled wall panel. Engineering Structures, 147, 297-308. https://doi.org/10.1016/j.engstruct.2017.05.053.

3. Ahmad, A., & Singh, Yo. (2021). In-plane behaviour of expanded polystyrene core reinforced concrete sandwich panels. Construction and Building Materials, 269, 121804. https://doi.org/10.1016/j.conbuildmat.2020.121804.

4. Rassouli, B., Soheil Shafaei, S., Ayazi, A., & Farahbod, F. (2016). Experimental and numerical study on steel-concrete composite shear wall using light-weight concrete. Journal of Constructional Steel Research, 126, 117-128. https://doi.org/10.1016/j.jcsr.2016.07.016.

5. Tong, J.-Zh., Pan, W. H., & Shen, M.-H. (2020). Performance of double-skin composite walls with re-entrant profiled faceplates under eccentric compression. Journal of Building Engineering, 28. https://doi.org/10.1016/j.jobe.2019.101010.

6. Wang, K., Su, M.-N., Wang, Yu.-H., Tan, J.-K., Zhang, H.-B., & Jun Guo (2022). Behaviour of buckling-restrained steel plate shear wall with concrete-filled L-shaped built-up section tube composite frame. Journal of Building Engineering, 50, 104217. https://doi.org/10.1016/j.jobe.2022.104217.

7. Liu, C., Mao, X., He, L., Chen, X., Yang, Y., & Yuan, J. (2022). A new demountable light-gauge steel framed wall: Flexural behavior, thermal performance and life cycle assessment. Journal of Building Engineering, 47, 103856. https://doi.org/10.1016/j.jobe.2021.103856.

8. Mamat, R., Abd Rahim, J., & Hamzah, S. R. (2015). Behaviour of unreinforced expanded polystyrene lightweight concrete (EPS-LWC) wall panel enhanced with steel fiber. Journal of Engineering Science and Technology, 10(12), 1600-1614.

9. Shi, B., Liu, W., Yang, H., & Ling, X. (2020). Long-term performance of timber-concrete composite systems with notch-screw connections. Engineering Structures, 213, 110585. https://doi.org/10.1016/j.engstruct.2020.110585.

10. Zhou, B., Si, Q., Zong, L., & Wang, B. (2022). Seismic performance analysis of steel frames with FCP composite external wall. Structures, 39, 86-97. https://doi.org/10.1016/j.istruc.2022.02.076.

11. Boscato, G., Dalla Mora, T., Peron, F., Russo, S., & Romagnoni, P. (2018). A new concrete-glulam prefabricated composite wall system: Thermal behavior, life cycle assessment and structural response. Journal of Building Engineering, 19, 384-401. https://doi.org/10.1016/j.jobe.2018.05.027.

12. Glória Gomes, M., Moret Rodrigues, A., Bogas, J. A., & Frei­tas, A. (2021). Thermophysical properties under different hygroscopic conditions of an innovative composite concrete pre-walls system. Construction and Building Materials, 307, 124938. https://doi.org/10.1016/j.conbuildmat.2021.124938.

13. Bala, A., & Gupta, S. (2021). Thermal resistivity, sound absorption and vibration damping of concrete composite doped with waste tire Rubber: A review. Construction and Building Materials, 299, 123939. https://doi.org/10.1016/j.conbuildmat.2021.123939.

14. Guo, B., Yu, Ch., Yu Han, Y., & Zhu, J. (2012). Long-term Performance of Concrete Suffered Infant Age Freezing. Advanced Building Materials and Sustainable Architecture, PTS 1-4, 174-177, 524. https://doi.org/10.4028/www.scientific.net/AMM.174-177.524.

15. LLC “Building company “SERVUS” (2007). Multi-Layer Panel. (Ukrainian Patent No. 24051). Kyiv: Ukraine. Retrieved from https://base.uipv.org/searchINV/search.php?action=viewdetails&IdClaim=106308&chapter=biblio.

16. Sopelnyk, V., Sopelnyk, K., Taran, R., & Taran, V. (2009). Wall of the Building. (Ukrainian Patent No. 38504). Kyiv: Ukraine. Retrieved from https://uapatents.com/5-38504-stina-budivli.html.

17. Ministry of Regional Development and Construction of Ukraine (2010). State Standard B V.2.6-101:2010 Method for determining the heat transfer resistance of enclosing structures. Kyiv. Retrieved from http://uas.org.ua/wp-content/uploads/2019/01/dstu_b_v.2.6-101_2010.pdf.

18. Ministry of Regional Development and Construction of Ukraine (2010). State Standard B V.2.7-61:2008 Brick and stone ceramic ordinary and front. Kyiv. Retrieved from http://keraterm-ua.com/dsty.pdf.

19. Interstate Scientific and Technical Commission for Standardization, Technical Standardization and Certification in Construction (2001). State Standard B V.2.7-105-2000 Construction materials and products. Method for determining thermal conductivity and thermal resistance under stationary thermal regime. Kyiv. Retrieved from https://ukrsmeta.ua/wp-content/uploads/files/DSTU/33.DOC.

20. Ministry of Regional Development of Ukraine (2009). State Standard B V.2.7-182:2009 Building materials. Methods for determining the term of effective operation and thermal conductivity of building insulation materials in design and standard conditions. Kyiv. Retrieved from https://issuu.com/maxwell3249/docs/dstu_b_v_2_7-182_2009__stroitel_nye.

21. Ministry of Regional Development of Ukraine (2014). State Standard B V.2.6-189 Methods of selection of heat-insulating material for warming of buildings. Kyiv. Retrieved from https://eurobud.ua/wp-content/uploads/2020/09/dstu-b-v_2_6-189-2013.pdf.

22. Ministry of Regional Development, Construction and Housing and Communal Services of Ukraine (2017). State Building Code V.2.6-31 Thermal insulation of buildings. Kyiv. Retrieved from https://www.minregion.gov.ua/wp-content/uploads/2016/01/DBN-V.2.6-31-2016-Teplova-izolyatsiya-budivel.pdf.

23. Ukrainian Research Institute of Standardization, Certification and Informatics (2003). State Standard 4179-2003 Roulettes measuring metal. Specifications. Kyiv. Retrieved from http://online.budstandart.com/ua/catalog/doc-page?id_doc=50212.

24. SE “Ukrainian Research and Training Center for Standardization, Certification and Quality” (2019). State Standard EN 13190:2018 Thermometers with scale (EN 13190:2001, IDT). Kyiv. Retrieved from http://online.budstandart.com/ru/catalog/doc-page?id_doc=79229.

• < Prev
• Next >