• International Journal of Highway Engineering
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• v.13 no.3
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• pp.51-63
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• 2011

Surface of fine-size exposed aggregate portland cement concrete pavements(FS-EAPCC) is consist by exposed coarse aggregate to remove upper 2~3mm mortar of concrete slabs. Advantages of FS-EAPCC are maintaining low-noise and adequate skid-resistance level during the performance period. However, FS-EAPCC is required rational management criteria for field application, since it is early stage for application. Design construction and quality control criteria of FS-EAPCC was temporary laboratory tests which including optimum mix and exposing method, selection of adequate aggregate, resistance against, environmental loading and etc. However, these criteria need to be validated base on field application. In this study, experimental constructions were performed and construction procedure and quality control criteria were suggested based on the performance of the FS-EAPCC.

• Journal of the Korea Institute of Building Construction
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• v.7 no.1 s.23
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• pp.28-35
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• 2007

• JOURNAL OF ELECTRICAL WORLD
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• s.449
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• pp.71-71
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• 2014

• Korean Architects
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• s.466
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• pp.79-88
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• 2008

건설교통부 서울지방국토관리청(청장 한기선)에서는 지난 한 해 동안 수도권에 건설 중인 아파트 등 다중이용건축물의 부실시공 방지를 위해 시공실태점검과 기술자교육 등을 실시하고 있으나, 에너지절약 부분에 있어서는 관련법령에 미달되게 적용하는 사례가 반복 지적되고 있어, 설계자에 대한 관련 기준의 바른 이해에 도움이 되고자 알려 드립니다.

• Water for future
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• v.48 no.5
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• pp.44-53
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• 2015

• 지반과기술
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• v.2 no.1
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• pp.38-44
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• 2005

• Magazine of the Korean Society of Agricultural Engineers
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• v.24 no.4
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• pp.38-45
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• 1982

• Korean Architects
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• no.4 s.75
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• pp.48-61
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• 1975

• Korean Journal of Construction Engineering and Management
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• v.7 no.4 s.32
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• pp.78-90
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• 2006

There is no specific code and/or standard described in the specifications to check verticality for Pre-tensioned Spun High Strength Concrete pile installation process. The most commonly used method for the vertical PHC pile installation is a naked-eye measurement or water level measurement conducted by assistant crew in the construction sites. The main objective of the research is to develop the automated vertical controllable prototype equipment for PHC piles in order to achieve uniform construction qualify as well as improving safety and productivity. The paper explains the literature review on PHC pile and pile installation process, development of prototype, field test of the prototype and its performance evaluation in terms of quality and safety as well as productivity. The results of the research will lead the further researches on the automated pile installation system.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.39 no.6
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• pp.913-921
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• 2019

The government introduced the comprehensive evaluation bidding system with the goal of pursuing the best value and the global standard in 2016. However, for the evaluation criteria on the construction evaluation reflected to the comprehensive evaluation bidding system, the problems of the objectivity insufficiency, the inclusion of multiple subjective evaluation items, and the irrationality of the weight for each evaluation item are continue to be presented. The central office group, the local government, the relevant industry, and the expert group share recognition, but the solution is not derived. Hence, the major evaluation items to be improved were derived with the characteristics analyzed to secure the objectivity of the construction evaluation. For the analysis method, the standard deviation and the Fleiss Kappa analysis method were used by utilizing the characteristics that the construction evaluation criteria consist of all 4-point measures (good, average, insufficient, and poor). According to the result, the 10 evaluation items of the total 25 construction evaluation items were derived as the evaluation items to be improved. It was found in the analysis on the major characteristics of the derived evaluation items that the qualitative evaluation criteria such as 'Very Suitable' and 'Suitable' were commonly included in the detailed evaluation guidelines. Hence, as far as the future construction evaluation standards are concerned, the qualitative evaluation standards are sublated, and the improvement should be made mainly for the quantitative evaluation criteria enabling the objectivity assurance.