• Korean Journal of Construction Engineering and Management
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• v.21 no.6
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• pp.56-65
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• 2020

Urban renovation projects (reconstruction and redevelopment) have a longer licensing period than general housing projects, and many consultations with the licensing authorities require expertise. Most of the members of the union do not have basic knowledge of the maintenance business, so they have a lot of authority to promote smooth business Is entrusted to the union leader. However, contrary to the original purpose entrusted by the members, it is easy to find a case where the business is suspended because the union leader is exposed to corruption for the private interests of the union, and the members' disputes could not be resolved. In order to overcome this risk, the problem of the maintenance project was found through a questionnaire survey composed of practical experts, and a solution was presented through the KCSI evaluation model. This study mentioned the necessity of a responsible CM that can make independent business decisions without interference from the union, rather than a management-type CM limited to the cooperative's work assistance. In order to promote the construction industry's national role, it was necessary to revitalize responsible CM, so six practical alternatives were proposed.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.634-637
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• 2004

Hereafter, the housing construction industry in a domestic country has to give more relative importance to the redevelopment and the rebuilding of existing housing rather then the housing supply methods by the development of new housing sites, and those tendencies are rapidly spreading out. Also, because apartment occupies $50\%$ over of the existing housing, its maintenance, repair, remodeling and reconstruction got to be necessary area for the slumming prevention of a residential area and the disaster prevention occurred by durability lowering of building. But, as having focused on the housing supply methods by the development of new housing sites, the domestic construction industry has relatively carelessly dealt with deconstruction areas including maintenance, remodeling, redevelopment and reconstruction of old existing housing. Therefore the process of the deconstruction is not well suited to regulations and related technology. This paper suggests the present situation of C&D production and new demolition process through comparative analysis of the present demolition works.

• Land and Housing Review
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• v.4 no.4
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• pp.333-348
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• 2013

The detailed current situation of urban renewal projects which have implemented in all over the country is sorted by regional and divisional groups, researching press reports. Problems in the progress of promoting urban renewal projects made the paper are analyzed in this research. This research examined the actual condition about urban renewal projects synthetically and then, deduced the following improvement plan. First, formulating long-term renewal plan is needed. Secondly, It should be changed into the gradual urban renewal project on a small scale according to various conditions of each local area. Finally, support of the central government in consideration of local conditions should be carried out.

• Korean Journal of Construction Engineering and Management
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• v.20 no.3
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• pp.77-85
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• 2019

Reconstruction and remodeling have been introduced as a part of renewal (redevelopment) projects for old apartments built after the mid-1970's and government policies for revitalizing each project has been changed continually. However, the frequent changes of the policies have caused conflicts among business entities in selecting business methods. The conflicts from their early stages have made serious problems in the entire business process. Therefore, this study deduced factors of business selection by applying comparison analysis between the two business projects on how certain factors have an influence on selecting reconstruction and remodeling business projects. Based on the analysis, four categories and 26 factors were finally selected. After then, the priority of each selection factor was deduced through the AHP method and PROMETHEE method used for analysis of relative importance and impact values regarding to the business selection.

• Journal of the Korean housing association
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• v.7 no.2
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• pp.131-137
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• 1996

This study was aimed at providing valuable information that can help the government and the housing development staff deal with the problem with ‘Redevelopment Apartment Rehabilitation’ in Ulsan city.For the purpose of this study, questionaire are constructed with contents about socio-demography factors, housing factors. attitute forward reconstruction, and housing needs of respondents. questionaire were collected from 232 housewives living in old-aged and deteriorated apartment houses in Ulsan. Apartment houses of respondents are 5 floor. more than 100unit houses. and above 10 years old the living size of apartmet is less than 25 pyoung(82.5m2) per unit house and average living size is 16~20 Pyoung(52.8m2~66.Om2)/unit house. Average family size is 4-5 persons. and average income is about 1,200,000 Won(about $ 1,500) Per month. The major findings are as follows :First, they want the reconstruction of old-aged and deteriorated apartment house very positively.Second. they want high rise building, more lager parking lot. market. sports facility. and play yard for children. Third they want that size of unit house is 26~30 pyoung85.8m2~99.0m2). the number of room is 3~4, the number of bathroom is 1-2. and type of access is stair style.

• Explosives and Blasting
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• v.20 no.3
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• pp.83-96
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• 2002

Reconstruction and redevelopment of old and dilapidated apartment and housing have been increasing to provide more housing accommodation and to secure the safety of building structures since the middle of 1990's. Since, however, little researches on the demolition technique have been made, conventional mechanical demolition method were applied to the most of works that resulted in flooding in small demolition companies. Problems associated with mechanical demolition method are increase not only in working days and costs, but also in public claims, particularly for high-rise building structures. This is to contribute the demolition industries bt providing the concept, standards, and technique of demolition engineering while maximizing working efficiency and minimizing public claims.

• Architectural research
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• v.15 no.1
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• pp.25-33
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• 2013

The amount of construction waste increased to 176,447 ton/day in 2008 from 28,400 ton/day in 2000, a 6-fold increase in just 10 years. Such dramatic increase in the waste of concrete, asphalt concrete, wood and metals was due to demolition of old buildings as well as a great number of building redevelopment projects and hurried city industrialization. Many buildings targeted for demolition today were built in line with the government policy to provide affordable housing to citizens in the shortest time possible and consequently, said buildings underwent rapid deterioration and required periodic repairs and reconstruction. Based on the above, we predict that construction waste will continue to increase for the foreseeable future. In particular, due to limited availability of suitable space to construct apartments and residential buildings in the city, old buildings are being torn down to make space for new development, further increasing construction waste. In light of that, efforts to recycle as well as reduce generated waste are urgently required.

• Journal of the Korean housing association
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• v.14 no.1
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• pp.51-59
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• 2003

This study is to analyze the situation of residential area in Down Town and to research any factor of difficulty in developing residential area. First, we can summarize briefly in consequence of analyzing the residential environment classified with apartment and independent house in Down Town. 1) The apartment houses located in Down Town were constructed long ago on a small scale. The field investigation shows that parking lots are not enough and there are many spaces used inappropriately. 2) Each detached house was too old and built in narrow spaces. The irregular narrow lanes between houses also cause problems in walking and parking. And empty houses are found in that area. Second, the brief results of analyzing difficulties in developing the residential area in Down Town are as follows. 1) The land and buildings have difficulty in reconstruction because of the deterioration. 2) The economical efficiency is low though it is developed as a residential area. 3) There are some factors that they don't like to live in Down Town. 4) The law system is not enough to support the development of the residential area in Down Town

• Proceedings of the Korean Institute of Building Construction Conference
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• 2016.10a
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• pp.106-107
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• 2016

Construction waste is recycled and used for the efficient and eco-friendly disposal of construction waste increasing due to reconstruction and redevelopment project and so on. There is recycled aggregate as a typical case. And this recycled aggregate shows strong alkalinity due to calcium hydroxide, and causes many environmental problems. Therefore, this is a study on reduction in the strong alkalinity of recycled aggregate by using phosphate of ammonium in order to reduce the pH of recycled aggregate. Besides, a possibility that a pH reducing agent of recycled aggregate could be applied to a site was evaluated. As a result, it was possible to verify that pH decreased as the percentage of pH reducing agent increased. It is thought that the pH reducing agent can be applied to a site by methods such as immersion and spray using the pH reducing agent in the process of producing recycled aggregates.

• Journal of the Korean Institute of Rural Architecture
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• v.9 no.3
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• pp.93-102
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• 2007

The purpose of this study is to find the method about the design factors considering the remodeling of apartment housing. Domestic remodeling operations has been developed incessantly. Recently, instead of redevelopment and reconstruction, remodeling operations is being generalization. Therefore by considering the related building code, this study seeks the revisions and try to understand the architectural character of apartment housing and find the design factors throughout the remodeling case of apartment housing. For instance, it is to make use of the flexible partition in unit plan or consider a various house plan etc. So by analyzing these remodeling design factor, we will be able to live the residential environment more extensive than previously.