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Assessment of Concrete Formwork Practices in Bahir Dar City, Ethiopia

Received: 23 July 2024     Accepted: 13 August 2024     Published: 30 August 2024
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Abstract

Formwork is among the most determinant factors affecting the cost and completion time of construction projects. In this study, the erection practices, challenges, types, quality and cost of formwork on active building construction projects in Bahir Dar were assessed. The study uses, Questionnaires, site observations and oral interviews with project managers, office and site Engineers, construction managers and carpenters were used to organize and analyse data. From assessment, most of the contractors have given less attention to formwork erection and safety issues. Since the principal criteria for formwork selection are cost and traditional formwork erection, it impacts construction safety and reduces the concrete finishing and quality. Formwork erection is left as the task of carpenters and labourers. There is no proper supervision of the quality of formworks that guarantees construction workers' safety so it is vulnerable to physical injuries and affects employee’s health. From the study, timber formwork is the most dominant type of formwork used for the construction of slabs, beams, columns and stairs due to its availability and low cost. Burnt oil is used as a releasing agent in all construction projects that causes undesirable outputs in concrete surfaces.

Published in American Journal of Construction and Building Materials (Volume 8, Issue 1)
DOI 10.11648/j.ajcbm.20240801.12
Page(s) 9-19
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Concrete, Formwork, Plywood, Prop, Steel

References
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[12] Government, A., Construction Industry South Australia in INDUSTRY GUIDE FOR FORMWORK. 2012, 3-22.
[13] Relations, M. f. E. a. I., Formwork Code of Practice 2016. 13-32.
[14] Ethiopia, M. o. W. a. U. D. o., Structural Use of Concrete, in chapter 8 materials and workmanship. 1995: Addis Ababa. 9-20.
[15] Okafor, F. and D. Ewa, Estimating formwork striking time for concrete mixes. Nigerian Journal of Technology, 2016. 35(1): 1-7.
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[22] Blackburn, T. O. (1997). Structural Concrete Systems. Concrete construction engineering handbook, 10, 11-12.
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[24] Mosallam, K., & Chen, W.-F. (2021). Design considerations for formwork in multistorey. Plasticity, Limit Analysis, Stability And Structural Design: An Academic Life Journey From Theory To Practice. 421,
[25] Shapira, A. (1995). Formwork design for high elevated slab construction. Construction Management and Economics. 13(3), 243-252.
[26] Zareef, M. A. M. E. (2010). Conceptual and structural design of buildings made of lightweight and infra-lightweight concrete.
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[29] Halushko, V., & Kolomiychuk, V. (2018). Erecting constructions of complex configuration with using of pneumatic formwork. Вісник Одеської державної академії будівництва та архітектури (70), 151-156.
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Cite This Article
  • APA Style

    Reda, S. G., Lemlem, B. Y. (2024). Assessment of Concrete Formwork Practices in Bahir Dar City, Ethiopia. American Journal of Construction and Building Materials, 8(1), 9-19. https://doi.org/10.11648/j.ajcbm.20240801.12

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    ACS Style

    Reda, S. G.; Lemlem, B. Y. Assessment of Concrete Formwork Practices in Bahir Dar City, Ethiopia. Am. J. Constr. Build. Mater. 2024, 8(1), 9-19. doi: 10.11648/j.ajcbm.20240801.12

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    AMA Style

    Reda SG, Lemlem BY. Assessment of Concrete Formwork Practices in Bahir Dar City, Ethiopia. Am J Constr Build Mater. 2024;8(1):9-19. doi: 10.11648/j.ajcbm.20240801.12

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  • @article{10.11648/j.ajcbm.20240801.12,
      author = {Shumet Getahun Reda and Biruk Yenehun Lemlem},
      title = {Assessment of Concrete Formwork Practices in Bahir Dar City, Ethiopia
    },
      journal = {American Journal of Construction and Building Materials},
      volume = {8},
      number = {1},
      pages = {9-19},
      doi = {10.11648/j.ajcbm.20240801.12},
      url = {https://doi.org/10.11648/j.ajcbm.20240801.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajcbm.20240801.12},
      abstract = {Formwork is among the most determinant factors affecting the cost and completion time of construction projects. In this study, the erection practices, challenges, types, quality and cost of formwork on active building construction projects in Bahir Dar were assessed. The study uses, Questionnaires, site observations and oral interviews with project managers, office and site Engineers, construction managers and carpenters were used to organize and analyse data. From assessment, most of the contractors have given less attention to formwork erection and safety issues. Since the principal criteria for formwork selection are cost and traditional formwork erection, it impacts construction safety and reduces the concrete finishing and quality. Formwork erection is left as the task of carpenters and labourers. There is no proper supervision of the quality of formworks that guarantees construction workers' safety so it is vulnerable to physical injuries and affects employee’s health. From the study, timber formwork is the most dominant type of formwork used for the construction of slabs, beams, columns and stairs due to its availability and low cost. Burnt oil is used as a releasing agent in all construction projects that causes undesirable outputs in concrete surfaces.
    },
     year = {2024}
    }
    

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    T2  - American Journal of Construction and Building Materials
    JF  - American Journal of Construction and Building Materials
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    AB  - Formwork is among the most determinant factors affecting the cost and completion time of construction projects. In this study, the erection practices, challenges, types, quality and cost of formwork on active building construction projects in Bahir Dar were assessed. The study uses, Questionnaires, site observations and oral interviews with project managers, office and site Engineers, construction managers and carpenters were used to organize and analyse data. From assessment, most of the contractors have given less attention to formwork erection and safety issues. Since the principal criteria for formwork selection are cost and traditional formwork erection, it impacts construction safety and reduces the concrete finishing and quality. Formwork erection is left as the task of carpenters and labourers. There is no proper supervision of the quality of formworks that guarantees construction workers' safety so it is vulnerable to physical injuries and affects employee’s health. From the study, timber formwork is the most dominant type of formwork used for the construction of slabs, beams, columns and stairs due to its availability and low cost. Burnt oil is used as a releasing agent in all construction projects that causes undesirable outputs in concrete surfaces.
    
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