• Title/Summary/Keyword: Quality of construction

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An Empirical Study on Top Management's Leadership in Construction Quality Management Activities and Construction Quality Management Performance (최고경영자의 리더십이 건설품질경영활동과 건설품질경영성과에 관한 실증연구)

  • Cho, Jin-Ho
    • Journal of Korean Society for Quality Management
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    • v.45 no.3
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    • pp.403-426
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    • 2017
  • Purpose:?The purpose of this study is to analyze the causal relationship between top management 's leadership and construction quality management activities that affect construction management performance based on construction quality management. Methods:?As its method, the causal relationship between the leadership of top management and the key management factors of construction quality management activities affecting management performance is analyzed by using the structural equation model. The construction companies used in the analysis sample conducted surveys on companies that are conducting ISO, KOSHA, OHSAS, DQC, and so on. Results:?It was revealed that top management's leadership has a great influence on management performance and all management factors of construction quality management activities. However, safety management does not affect the management performance of construction quality management activities. And top management's leadership on management performance are explained by the mediating effect of cost, time, quality and communication among management factors of construction quality management activities. Conclusion:?In the previous study, the quality management activities and the ISO - based integrated total quality management system (TQM) applied in the manufacturing or service industries were presented as empirical results. However, this study presents the results of different studies by presenting empirical study results by selecting time, cost, quality, safety and communication as key management factors of quality management activities of construction companies through reviewing and analyzing previous studies in construction field.

A Survey for a Development Construction Materials' Construction Site Quality Control Guide (건설자재 현장품질관리 지침 개발을 위한 실태조사)

  • Ko, Eun-Joo;Ko, Eun-Jung;Seok, Ho-Joong;Lee, Seung-Hyeok
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2008.05a
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    • pp.1-5
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    • 2008
  • The purpose of this study is to ensure an amicable material quality control in the construction site through investigating a process which can impact the construction material quality. For it, a worker interview and questionnaire survey was conducted through a direct field visit. The visited construction sites are composed of 79% construction site and 21% engineering site. As the respondents of questionnaire survey, the quality control workers were 72% of total respondents. Next, the construction worker, handymen, field representatives and others formed 7%. The interview with the quality control staff was conducted with the items including the construction site quality control guide, incoming inspection and material management. Through this survey, the problems of quality control by progress phase were derived. It could be known that the management and measures by each phase were urgently required. It also was indicated that a selection of low-priced material caused by low price bidding could badly impact the construction and safety. Also, in relation to the opinions such as the insufficient quality control and heavy work-load, the improvements are required. For the effective quality control in the construction site, the material quality control procedures suitable for the phase of construction progress must be presented in the present quality control. Also, the standards for it need to be established.

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A Study of Developing Guides for the Construction Site Quality Control of Porous Concrete (투수콘크리트 현장품질관리 지침서 개발에 관한 연구)

  • Ko, Eun-Jung;Goh, Eun-Joo;Seok, Ho-Joong;Lee, Seung-Hyeok
    • Journal of the Korea Institute of Building Construction
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    • v.9 no.3
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    • pp.65-71
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    • 2009
  • General criteria for the quality of porous concrete have not been established yet in Korea. And yet, pavement and construction have been performed. In this paper, guidelines on the construction site quality control of porous concrete were developed in order to establish criteria for resolving the issues and problems of porous concrete, to establish methods for improving poor performance, and to manage porous concrete more systematically. In addition, a guide for the construction site quality control of porous concrete, which was appropriate for reality, was developed by researching several quality control guides and maintenance at construction sites. The guide consists of a total of nine chapters such as Application Range, Overview, the Structure of Porous Concrete, the Design of Package Thickness, Package Materials for Porous Concrete, Construction Methods, Quality Assurance and Inspections, Construction Site Quality Control, and Maintenance. It describes quality control guidelines in all steps such as methods for transporting porous concrete from the factory to the construction site, cautions for construction work at construction sites, maintenance, and management. The Guide for the Construction Site Quality Control of Porous Concrete is expected to ensure the quality of porous concrete, to reduce national costs for quality assurance, and to help ensure the health and safety of Korean people.

Perception Based Definition of Construction Quality in Pakistan

  • Awan, Muhammad Yousaf Sadiq;Awan, Dr Muhammad Maqbool Sadiq
    • Journal of Construction Engineering and Project Management
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    • v.5 no.2
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    • pp.24-34
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    • 2015
  • The complexity arises in defining the construction quality due to its perception, based on inherent market conditions and their requirements, the diversified stakeholders itself and their desired output. A quantitative survey based approach was adopted in this constructive study. A questionnaire based survey was conducted, for the assessment of construction quality perception and expectations in the context of quality improvement technique. The survey feedback of professionals, from the leading construction organizations/companies of Pakistan were analyzed. The financial capacity, organizational structure, and construction experience of the construction firms formed basis for their selection. After statistical analysis of survey feedback it was found reliable and valid for the inferential purpose to the target population of construction professionals. The quality perception was found to be project scope oriented, considered as an excess cost for a construction project and keeping the rework minimum by qualifying the required quality tests, keeping the defects minimum by ensuring the specifications of supplied material. Any quality improvement technique was expected to address the financial aspects of the construction project for the employer and contractor, by increasing the profitability through reduction in overall cost, reduction in time, reduction in defects and improving the productivity in a construction project. The study is beneficial for the construction professionals to assess the prevailing construction quality perception and the expectations from implementation of any quality improvement technique in construction projects.

Assessing Indonesian Construction Regulations on Quality and Performance

  • Willar, Debby;Rumbayan, Rilya;Manueke, Selfy;Mandagi, Robert
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.481-485
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    • 2015
  • Indonesian construction companies are currently facing high competition both among themselves and with global construction companies. In order to address this issue, the Government of Indonesia has enacted specific regulations and policies relating to the development and implementation of quality management systems (QMSs) ISO 9001 based in construction, acknowledging that the consistency of construction project quality requires a formal quality system as a guarantee to raise quality standards at all project stages. The research has been undertaken to examine the effectiveness of the regulations and policies against several key performance indicators (KPIs) of the ISO 9001 Indonesian construction companies. A comprehensive review of the relevant regulations and policies together with interviews with the Government and National Construction Services Development Board recommend possible additional guidelines and supporting quality system, which intends to measure contractors' project output against defined standards as well as to assess their performance among other similar service providers. The outcomes of the research contribute to the development of the Indonesian own construction industry quality measurement and assessment system.

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Comparion of Korea-Japan Quality Standards for Grout Materials about PC Member assembly (PC부재 조립용 그라우트 재료 품질 기준의 한일 비교)

  • Kim, Yeon-Ho;Lee, Bum-Sik;Kim, Min-Jun;Kim, Ki-Ho;Jun, Myoung-Hoon
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.11a
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    • pp.127-128
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    • 2023
  • Recently, OSC (off-site construction) construction has been revitalized as a response to the decline in building quality and productivity due to lack of skilled manpower at construction sites, and PC (precast concrete) construction, a representative OSC construction, is insufficiently applied to public housing.This is the situation.In addition, in the case of general contents appearing in standard specifications, the construction standards for quality assurance remain in the 1990s and do not correspond to the current construction environment.In order to improve the quality of PC member joints, we compared and analyzed Korean and Japanese specifications to establish appropriate standards for PC construction quality control, focusing on the quality of grout used in joints.

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Site Quality Evaluation Prototype for Building Deck-plate Construction

  • Shim, Young-Bo;Cho, Dong-Hyun;Koo, Kyo-Jin
    • Journal of the Korea Institute of Building Construction
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    • v.13 no.1
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    • pp.90-100
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    • 2013
  • Deck-plates are widely used on construction sites, and have the advantage of enabling contractors to achieve a relatively uniform quality. But nevertheless, quality deviation in deck-plate construction can occur as the result of differences in site conditions and the experience of crew workers. In this study, the authors present a site quality evaluation prototype for building deck-plate construction. Through analyses of case studies and interviews with experts, standard quality check sheets and a quality management index were developed by estimating the importance of quality check items based on a Failure Mode and Effects Analysis (FMEA) method. The applicability and effectiveness of the prototype was evaluated through a case study and interviews with case participants. It was found that the prototype promoted an active quality management as a way of continuously improving quality management in deck-plate construction instead of passive quality inspection practice.

A Study on Productivity Analysis of Quality Management System in Construction Site

  • Hyun chul Oh;Sung oh Byun;Ki hyun Baek
    • International conference on construction engineering and project management
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    • 2024.07a
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    • pp.1303-1304
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    • 2024
  • Quality management work at construction sites requires a lot of time and effort in Excel-based document preparation and approval in addition to conducting quality tests. Because Excel-based quality management tasks are divided into quality test report printing and test progress, test report documentation, test report printout and approval, and management ledger preparation. This divided processes increase work time and reduce efficiency. Accordingly, a cloud-based construction site quality management system (Q-BOX) was developed to improve the productivity of quality management work. The purpose of this study is to analyze the productivity of Q-BOX, which is in the early stages of construction site introduction.

Developing an IFC-based database for construction quality evaluation

  • Xu, Zhao;Li, Bingjing;Li, Qiming
    • International conference on construction engineering and project management
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    • 2017.10a
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    • pp.301-312
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    • 2017
  • Quality evaluation and control represent increasingly important concerns for construction quality management. There is an evident need for a standard data model to be used as the basis for computer-aided quality management. This study focuses on how to realize evaluation of construction quality based on BIM and database technology. In this paper, the reinforced concrete main structure is taken as an example, and the BP neural network evaluation model is established by inquiring current construction quality acceptance specification and evaluation standard. Furthermore, IFC standard is extended to integrate quality evaluation information and realize the mapping of evaluation information in BIM model, contributing to the visualization and transfer sharing of evaluation information. Furthermore, the conceptual entity model is designed to build quality evaluation database, and this paper select MySQL workbench system to achieve the establishment of the database. This study is organized to realize the requirement of visualization and data integration on construction quality evaluation which makes it more effective, convenient, intuitive, easy to find quality problems and provide more comprehensive and reliable data for the quality management of construction enterprises and official construction administratiors.

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Analysis on Quality Defect Status in the Construction Site of Domestic Educational Facilities (국내교육시설건설공사 현장에서의 품질하자 현황분석)

  • Ryoo, Chong-Hyuck;Park, Young-Ki
    • Journal of the Korean Institute of Educational Facilities
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    • v.15 no.1
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    • pp.44-52
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    • 2008
  • Amid the rapidly changing constructional business conditions, the volume of BTL business sectors has expanded largely during two or three years. Especially, construction works fur educational facilities of elementary, middle and high schools has been performed by the mid-sized construction companies who are not capable of doing effective and systematic quality management while the requirements of the customers are getting higher and higher. In order to have a flexible deal with the rapidly changing business conditions and also to enhance the quality level, it is the high time to reorganize the effective quality management systeme by doing the overall analysis about the quality defects in construction site. Accordingly through the investigation about the quality defects in the construction sites of domestic educational facilities, this study will focus on what kind of quality defects show. It is aimed at providing the preliminary data for the establishment of quality management fur the construction site of the domestic educational facilities by analysing the investigation results.