Korean Journal of Construction Engineering and Management (한국건설관리학회논문집)

Korea Institute of Construction Engineering and Management (한국건설관리학회)
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A Study on the Defects of Exposed Concrete Finishing Work Using AHP

AHP기법을 활용한 노출콘크리트 마감공법 하자 도출

  • Choi, Seongmi (Department of Architectural Engineering, Soongsil University) ;
  • Song, Yeongwoong (Department of Architectural Engineering, Soongsil University) ;
  • Lee, Kiseok (Department of Architectural Engineering, Soongsil University) ;
  • Yoo, Seonghoon (Department of Architectural Engineering, Soongsil University) ;
  • Choi, Yoonki (Department of Architectural Engineering, Soongsil University)
  • Received : 2019.02.16
  • Accepted : 2019.04.19
  • Published : 2019.07.31
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Abstract

The exposed concrete has been widely used in building construction. Therefore, many researches are presented to secure a proper construction quality of exposed concrete. Low quality and management absence, however, still remained in construction fields. Thus, many studies have been conducted to improve the quality, but defects still occur in the exposed concrete finishing work. In this study, the causes of defects were analyzed by process in order to prevent the generation of defects and to enhance the need for integrated management to secure quality. In addition, a case study and AHP analysis have derived the importance of defects occurring in the exposed concrete finishing work. The study concluded that the occurrence of the exposed concrete finishing work needs to be managed throughout the process, not the management limited by one process, according to the causes of the existing defects, and integrated management is required to prevent defects and improve quality of exposed concrete finishing work.

노출콘크리트 마감공법은 1990년대 외부 입면 형식의 다양화, 시공기술의 발달, 콘크리트 품질 향상 등으로 인하여 노출콘크리트 마감공법의 적용사례가 증가하기 시작하였고 최근까지 노출콘크리트 마감공법을 사용하는 경우가 증가하는 추세이다. 이에 따라 품질향상을 위해 많은 연구가 진행되었지만 노출콘크리트 마감공법의 하자발생은 여전한 상태이다. 본 연구는 노출콘크리트 마감공법의 하자발생을 방지하고 품질을 확보하기 위한 통합관리의 필요성을 제고하기 위해 하자발생의 원인을 프로세스별로 분석하였다. 또한 사례조사와 AHP 분석을 통해 노출콘크리트 마감공법에서 발생하는 하자의 중요성을 도출하였다. 본 연구를 통해 노출콘크리트 마감공법의 발생하자가 기존의 하자의 발생 원인에 따라 한 프로세스마다 국한되어있는 관리가 아닌 프로세스 전반에 걸쳐 관리가 필요하다고 판단되며, 노출콘크리트 마감공법의 하자 방지 및 품질향상을 위한 통합관리가 요구되고 있다고 분석되었다.

Keywords

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Fig. 1. Construction process of exposed concrete

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Fig. 2. Decision stage of AHP method

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Fig. 3. The hierarchical structure diagram of the exposed concrete process problem

Table 1. Requirements of exposed concrete finishing work

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Table 2. Defect by process of exposed concrete

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Table 3. Cause of exposed concrete defects

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Table 4. Preceding research analysis

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Table 5. Analysis target area of exposed concrete defects

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Table 6. Analysis of exposed concrete defects

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Table 7. Outline of interview

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Table 8. Importance and priority in stage of exposed concrete process

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Table 9. Importance of problems and priorities in design phase

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Table 10. Importance of problems and priorities in procurement phase

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Table 11. Importance of problems and priorities in construction phase

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Table 12. Importance of problems and priorities in maintenance phase

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Table 13. Problems in stage of exposed concrete process

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