• Journal of the Korean Recycled Construction Resources Institute
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• v.6 no.3
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• pp.190-198
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• 2018

The Epoxy-coated Reinforcing bars have been proved to be able to extend a durability life because of its excellent corrosion resistance in bridges and structures under marine and severe environments. The usage of epoxy-coated reinforcement is continuously increasing in developed countries such as the US and Japan. However, domestic use is extremely limited due to lack of research and development, poor production facilities, low quality, increase of initial costs, and difficulty of field management. This study suggests the improvement of construction quality management such as manufacturing, transportation and construction for the field application through the test construction of the proven product in the related test results of the epoxy coated steel bars produced in the recently improved manufacturing facility.

• Journal of the Architectural Institute of Korea Structure & Construction
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• v.35 no.11
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• pp.171-180
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• 2019

This research proposed the Direct Construction System for construction corporations as a strategy intended to perform cause analysis of construction technician shortage matter and solve resulting problems, and in view of the outcomes from the application of this system to the projects and workshops, it was verified that unsteady employment, lack of career prospect, and conditions of work environment can be resolved. In addition, from corporations' perspective, it is considered that by clarifying the abovementioned three problems, fundamental complications of construction administration, quality control, safety supervision, and cost management were settled, concluding forthcoming advancement of domestic construction business quality fell far behind developed counties.

• International conference on construction engineering and project management
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• 2009.05a
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• pp.237-241
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• 2009

Automation and robotic technology (ART) has been successfully applied in the manufacturing and allied industries to achieve on-time delivery of quality products at increasingly reduced costs. Meeting time, quality and cost targets still remains a big challenge in the global construction industry with prevalence of time and cost overruns. Application of ART in the construction industry could contribute to significant improvement in the efficient and effective delivery of projects to meet and exceed client expectations. However, the uptake of ART is still low in the construction industry. This study investigates the various ways in which ART could be applied to improve construction project delivery, potential areas of applications, and constraints to the uptake of the technology in the construction industry. Recommendations are made for improving the uptake of ART in the construction industry.

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 2001.10a
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• pp.171-175
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• 2001

The quality control application of concrete are one of the most important problems to be considered in cold weather concreting. And, the construction is going on now Therefor, the major test variables are compressive strength of concrete, curing method and volume of air content. This shown to be possible to construction and quality control of cold weather concreting in field.

• Proceedings of the Korea Concrete Institute Conference
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• 2003.11a
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• pp.557-560
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• 2003

This study deals with the method of test for waterproof agent and admixture of cement, and especially, the effect on bond strength between waterproofing layer and mortar or concrete substrate in building construction. Quality of that has been managed according to it of construction standard manual, housing construction manual, 건, and Q until performance of that is specified by law as KS F 4923. Therefore this study focus on the quality and trend for a fatty system and PCM(Polymer Cement Mortar)

• Proceedings of the Korean Geotechical Society Conference
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• 2004.03b
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• pp.58-65
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• 2004

Recently, the top & down method with drilled shafts as a foundation of high rise building is often adopted for the purpose of construction period reduction and construction cost effectiveness. It is common to omit the loading test as a Quality assurance on account of the high capacity of drilled shafts for the top & down method. It seems that the capacity of drilled shaft in recent top & down method is beyond that of conventional loading test method.However, the quality assurance for the drilled shaft as foundation of high rise building becomes much more important since the drilled shaft should bear much higher working load. It may be a small scale test pile could be an alternative as a quality assurance for the drilled shaft with high capacities. Through a case study, this paper gives an idea for solving the limitation of the conventional loading test method for the quality assurance of drilled shaft with high capacities. In particular, this paper analyzed the scale effect for a small drilled shaft installed into bedrock, which could be used for an alternative.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2007.11a
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• pp.23-26
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• 2007

In this study, recently it is urgently required that demolition waste concrete has to be recycled on the construction because urban development is accelerated and redevelopment project is rapidly expanded, production quantity of construction and demolition waste concrete is being increased. On the other hand, it has to be solved urgently the unbalance of demand and supply about the fine aggregate because the sea sand is restricted by exhaustion of river sand and intensification of environment influence evaluation. Therefore, the purpose of the study was to show the performance of the apparatus developed by the study and to propose the direction of the optimum operating conditions by having an experimental and positive evaluation about quality of recycled sand produced to develop a separating and selecting device of impurities for recycling of construction wastes which can have a bigger improvement of economical efficiency, productivity, environmental property and quality through a basic property of matter of recycled sand by each operating condition of sand flux in comparison with the existing production system of recycled sand.

• The Journal of Economics, Marketing and Management
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• v.12 no.4
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• pp.13-25
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• 2024

Purpose: Korea's construction industry has faced declining productivity and quality issues due to labor-intensive onsite construction and variables like weather, material price fluctuations, and labor shortages. The modular housing industry, introduced in Korea in 2003, offered benefits like reduced construction time and enhanced productivity through offsite manufacturing. However, its adoption remains limited due to high costs, quality concerns, and low consumer acceptance. Research Design, Data, and Methodology: This study explores the feasibility and impact of implementing smart factory technologies in the modular housing industry to overcome these barriers. Using survey data from 179 construction industry experts, the study employs frequency and regression analysis to identify key factors influencing the adoption of modular housing and the effectiveness of smart factories. Findings suggest that government-led educational programs and strong policy support are essential for successful implementation, enhancing productivity, reducing costs, and improving quality. Conclusions: The study emphasizes the need for standardization of modular housing, deregulation of relevant laws, and increased public awareness to stimulate market growth and innovation. Policy recommendations include financial support for modular manufacturers transitioning to smart factories, ensuring stable supply volumes, and promoting the benefits of modular housing to consumers. Integrating smart factory technologies can lead to significant advancements in the modular housing industry, contributing to the sustainable development and modernization of Korea's construction sector.

• Journal of the Korean Society for Railway
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• v.9 no.3 s.34
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• pp.325-329
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• 2006

Quite a few of persons often fall into an error that ISO has happened an additional work at construction sites. Supervision works, however, are carried out in compliance with 'Guidelines for the Supervision Works' which is including most ISO Requirements. Additional requirements needed for the supervision works are not many. This study has studied on the ISO application of supervision works in relation to, 1) ISO 9001 & KS A 9001 Quality Management System Basic Model, 2) The Process of Railway Construction Work Supervision Quality Management Plan, 3) Supervision Work Performance Guide Book(2005) & KS A 9001(2001) Standard, at the railway construction sites.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2006.05a
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• pp.93-96
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• 2006

As the importance of recycled materials is being emphasized more in the Korean construction market, the production quality has been improved to a significantly high level. Compared to the high quality, however, there are used very limitedly. Among recycled construction materials, recycled aggregates produced through the retreatment of waste concrete are drawing attention because of lack of natural aggregate and heightened consciousness of resource saving and environmental protection and, as a consequence, they are close to natural aggregates in terms of production technology and quality. Despite the high quality and productivity, however, the utilization of recycled aggregates is very low.