Implementation of Six Sigma Method in Defect Control for Sustainable Construction (Case Study: Structural Work of Building Construction Project)

DOI

10.2991/978-94-6463-878-3_20How to use a DOI?

Keywords

Construction Projects; Defects; Six Sigma

Abstract

One of the main issues in construction projects is the high rate of structural defects, which contributes to material waste, increased costs, and project delays. This contradicts the principles of sustainable construction, which emphasize resource efficiency, waste reduction, and improved building quality to achieve a longer service life. This research aims to manage such defects using a quantitative descriptive method with Six Sigma analysis and the DMAIC approach. The result of this study indicates that there were a total of 76 defects were identified in the Hilton Garden Inn Extension project, with the highest occurring in column structure (25 defects), slabs structure (23 defects), beam structure (20 defects), and stairs structure (8 defects), mainly due to porous concrete and uneven surfaces. Sigma levels for all structural concrete works range from 2.808 to 4.745, with an average sigma level of 3.828, indicating moderate quality performance. The corresponding average DPMO across all structural components is 75,394.436 per one million opportunities. Key defect causes include unskilled labor, poor supervision, SOP non-compliance, improper concrete mixing, difficult formwork removal, low-quality materials, inadequate tools, and poor execution practices.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Ni Putu Indah Yuliana
AU  - Ni Kadek Sri Ebtha Yuni
AU  - Fransiska Moi
AU  - Tirtha Damayanti
PY  - 2025
DA  - 2025/10/31
TI  - Implementation of Six Sigma Method in Defect Control for Sustainable Construction (Case Study: Structural Work of Building Construction Project)
BT  - Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)
PB  - Atlantis Press
SP  - 167
EP  - 174
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-878-3_20
DO  - 10.2991/978-94-6463-878-3_20
ID  - Yuliana2025
ER  -