International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 01 | Jan 2025
p-ISSN: 2395-0072
www.irjet.net
A Review on “Study & Analysis for Reduction of Housing Construction Defects on Existing Housing Construction Projects using Six Sigma Technique.” Mr. Narendra S.Deshmukh1, Prof. G.N.Kanade2, Prof.A.B.Patil3 1 PG Student, Civil department, Tatyasaheb Kore Institute Of Technology Warananagar Tal- Panhala Kolhapur,
Maharashtra, India
2 Associate Professor,Civil department, Tatyasaheb Kore Institute Of Technology Warananagar Tal- Panhala
Kolhapur, Maharashtra, India 3 Assistant Professor,Civil department, Tatyasaheb Kore Institute Of Technology Warananagar Tal- Panhala
Kolhapur, Maharashtra, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract – Nowadays, construction defects have become
becoming increasingly common and frequently arise in projects, especially those with inadequate management or poor site supervision. A construction defect can be described as a significant issue in the construction industry, negatively impacting the cost and value of a building over time. These defects result in considerable expenses, defined as the resources required for rework to resolve the issue. Labor hours, materials, and equipment usage are consumed in the process of repairing defects. Additionally, time is wasted due to delays caused by such issues. The associated costs are calculated irrespective of who bears the financial burden.
widespread and frequently occur in construction projects, particularly in those with inadequate management or insufficient supervision on-site. A construction defect is often regarded as a major error in the construction industry, significantly impacting costs and causing the value of a building to diminish over time. These defects lead to substantial expenses, defined as the cost incurred for rework to rectify the issue. Labor hours, materials, and equipment usage are consumed to address the defect. Additionally, delays resulting from defects lead to further time loss.In multi-storied construction projects, the prevalence of defects during construction activities is notably high. Therefore, it is essential to identify defects associated with inferior quality in construction projects, whether related to architectural, structural, or construction standards.The paper also recommends various improvement strategies to enhance the quality of buildings by minimizing defects. One effective method is Six Sigma, a quality improvement technique that has been implemented in manufacturing and other industries. However, its application in the construction industry is still relatively new. This paper explores the fundamental concepts of Six Sigma, its principles, methodologies, and the various tools used to reduce defects. The findings suggest that proper training, management support, and minor modifications to existing work processes can significantly enhance quality and ultimately improve customer satisfaction, which is of utmost importance.
The root causes of construction defects often include poor design, substandard workmanship, failure to adhere to the design specifications, or exposure to unforeseen factors not accounted for in the design. Inadequate supervision during construction also contributes to these problems. Construction defects diminish the value of buildings and escalate costs. Such defects not only reduce the project's value but also lead to delays, preventing completion within the stipulated contract timeline. Budget overruns are another consequence of construction defects on site. Furthermore, these defects can pose dangers to society, resulting in direct and indirect costs related to repairs, exceptionally high maintenance expenses, disputes, and even potential building loss. Despite the significant impact of construction defects, only a limited number of studies have been conducted to identify their root causes in construction projects. These studies focus on the building industry and general engineering practices. Major factors contributing to construction defects include poor design, inferior workmanship, failure to construct according to the design, unforeseen factors not accounted for in the design, and inadequate supervision.
Key Words: Building defects, Construction defects, six sigma, construction delay, DMAIC, poor workmanship.
1. INTRODUCTION: A construction defect refers to the deficiency in a building, structure, or its components that prevents it from being constructed in a reasonably skillful manner or from performing as intended by the manufacturer, as expected by the buyer, or as designed. Such defects often lead to damage to the structure. Currently, construction defects are
© 2025, IRJET
|
Impact Factor value: 8.315
2. RELEVANCE: Construction defects are unique errors that are often unavoidable. Research indicates that reworking and repairing defective components, whether discovered late in
|
ISO 9001:2008 Certified Journal
|
Page 199