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The purpose of this study was studied fit self-sown plants bowing twice and soil-depth of upbringing soil in internal environment(rooftop). It was planning suitable upbringing soil more to gardening system and study. It was analyzed energy curtailment effect that rooftop tree plant construction work executed the new light weight concrete block for actuality material thing tester, and measured effect that indoor temperature is compared the gardening system with non-gardening system of rooftop.

Ubiquitous in the country's entire industry is playing an important role. In addition, construction management and field management in the construction industry gave the terms of the existing management a lot of changes. At the heart of ubiquitous is RFID technology. RFID is a technology that can send and receive information without contact, and a wide range of use. In the construction industry at the workforce management, the quality management, the process management, the security management, the logistics management, etc. are applied. And human resources management and safety technology already is universal. However, when you apply RFID to the construction site has caused many problems. For this reason, difficult to apply in some small and medium-sized companies. The study is that Find out the difficulties of human resources and has proposed Using RFID to offer efficient management of human resources.

The purpose of this study is to investigate how chloride ion penetration depth and chloride diffusion coefficient through the surface coatings has been applied to predict life expectancy. The chloride ion diffusion coefficient is evaluated based on NT BUILD 492. From the result, the surface coatings from study confirmed that the thing resistance about the chloride ion of the concrete which closes the surface is great compared with the concrete which did not closes the surface. Also it's judged the appropriate clad thickness by Surface Coatings. Therefore it will be able to expect the distinguished durability improvement.

The Purpose of this is properties of CFT filled with expansion concrete. CFT(concrete filled tube) is the structure that circle shape steel column filled with concrete. 3 kinds of expansive additives and variation of replacement rate. we changed expansive additive from 0%, 10%, 20%, 30% of ratio of addition rate are selected for this experiment. Merits of CFT are concrete internal force rising influenced by steel shape restriction, reinforcing the local buckling, excellent resistance to transformation. Generally, High rise building using CFT utilize the high strength and fluidity concrete for packing the tube inside. As the result a steel tube charged expensive concrete has stiffness 1.5times more than a steel tube not charged concrete. Increase of resisting power about compressive stress by binding expansion of expansive concrete affects strength increase and softness.

The purpose of this study was investigated and analyzed of the inside and outside of the country recycling present condition and connection literature, special permission present condition. It was Investigated basic properties of matter through Bottom Ash's standard investigation that happen in internal bituminous coal. It was approached of the Bottom Ash's mouth style and becoming a Taoist distribution with final decision, approached of the lightweight aggregate making possibility method through organic matter impurities examination. It was analyzed energy curtailment effect that rooftop tree plant construction work executed the new lightweight block for actuality material thing tester, and measured effect that indoor temperature is compared the gardening system with non-gardening system of rooftop.

This study targets to improve and complement the problem of existing flame resistant processing with flame resistant performance the same as existing flame resistant agents or better, keeping wooden surface & feel as they are, and to attempt to raise flame resistant performance and economic efficiency by applying phosphorous flame resistant agents, a colorlessness, odorless new product to woods for an improvement of flame resistant performance for wooden nature and to offer a basic data for an uniform high-performance for flame resistant woods by reinforcing wooden durability and usability

Because most wall plays the role on a bearing wall in an apartment house of shear wall structure, the apartment house is complicated by structure design and is fallen workability by a wet method of construction. And it's disadvantageous at the time of design change and remodeling. For the purpose which improves such weakness, flat-plate structure is applied to apartment house. Non-bearing lightweight dry wall is constructed the apartment house. This study is progressed to reduce the load of the building and improve time shortening and workability. The study developed functional ALC by non-bearing lightweight dry wall and did setting example production and estimated the performance. The developed hwangto ALC was applied to the Mock-up House, the workability was analyzed and a possibility of the application was considered.

The abilities to design and construct the apartment house have been developed and improved at a rapid pace, owing to the recent population concentration, improvement in quality of life, advancement of study regarding energy. In spite of the advanced abilities, claims in respect of defects have not been decreased and it is shown that the rate of defect regarding dew condensation is very high there among. Condensation of a building is a big issue from the aspect of the pleasantness of a room and the rise of cost for rework. Because it will be a big problem if the cost of repair work were more expensive than that of new. and also, it drops the company's image through occurring of condensation. therefore, it is needed to prevent from occurring condensation at the building's corner copulas areas of the outer wall. This paper deals with it is showing the problems of materials and construction methods is currently used to provide condensation in coner copulas. and We shall settle the defect of condensation in coner copulas of an outer wall and propose the method which could meet both economical efficiency and construction feasibility.

Outside the window of an apartment balcony to the balcony after the installation is a legitimate phenomenon caused by condensation occurs is a lot of complaints. To understand the situation and the problems that these measures of research has to offer. The apartment building is the construction area of approximately 2 years has elapsed, and standard apartments (85 ㎡) in 4‘s building was the target. The results, based on the balcony of measures to prevent condensation phenomenon as the basic material was to provide. In the study, about 14% of the generation that was condensation. And when a lot of moisture in the washing machine, the installation of the air flow is blocked by most measures such as insulation to prevent the condensation phenomenon to be said.

The demolition object is becoming the large-scale․high-storied. However, we have not prepared suitable systems and regulations as long-term solutions. To solve these problems, we have analyzed the demand for demolition to predict the demolition industry in Korea. And, we suggested advanced solutions to demolition industry in Korea based on the license systems of this study.

The purpose of this study is FPWS structure housing and structure public corporation of existing wall structural housing for efficient process control of project wishing to foretell productivity of synthetic FPWS structure housing analyzing comparison this hereafter construction plan and administration of FPWS structure housing actively utilize wish to. The method and contents of the study are shown as follow. Added non-load wall construction which is Difference of FPWS structure and wall structural housing and form, steel reinforcement, concrete, electricity, equipment 5 structure constructions to measure amount of work done about main structure construction 1cycle with wall structural housing and FPWS structural housing

It used to the standard estimation for calculates order expectation cost but it uses phase actual construction cost which is improved and modified previous standard estimation in present. However, it would be difficult to assure the reliability of the historical cost data, if the historical cost information is not adjusted in an appropriate manner which consider time and capacity of the historical projects. Therefore, this study presents to analyze the present situation of integrated historical cost data system in domestic and various factors that affect price and to propriety the historical cost which is accumulated.

Urban restoration projects as mega projects may face potential loss and failure because of less experiences in domestic practice. Therefore project management system is required to measure the performance by factors of success and failure at the earlier stage of the project. Managing performance indicators of success and failure are able to lead the project successful and effective performance. This research present the methodology of defining critical success factors and developing performance indicators in urban restoration projects.

It used to the standard estimation for calculates order expectation cost but it uses phase actual construction cost which is improved and modified previous standard estimation in present. However, it would be difficult to assure the reliability of the historical cost data, if the historical cost information is not adjusted in an appropriate manner which consider time and capacity of the historical projects. Therefore, this study presents to analyze the present situation of integrated historical cost data system in domestic and also in other advanced countries the adjustment method which complements and augments the historical cost data system of Korean construction community is discussed.

This paper is finally aimed at surveying the status quo of business expenses calculation for efficiently advancing BTL and at suggesting improvement plan by surveying on BTL business experts’ consciousness. BTL projects that has been conducted for four years in 2008 is raising doubts about the business promotion, due to the burden of risk for pre-investment of large amount, in spite of the government’s effort to activate private investment on SOC. Thus, it is found that operational expenses are the most important variable, by means of surveying and analyzing the status quo of BTL business expenses calculation, such as the current method of calculation by item, including grant and operational expenses, and problems. In addition, the following optimized improvement plans are suggested by collecting experts’ opinions: Suggestion of evaluation standard of Request for Proposal, regular evaluation of expenses’ propriety, LCC analysis, diversification of business validity evaluation, suggestion of the maximum and minimum of total amount of operation and maintenance expenses, and of its basis, development and introduction of the grant calculation system and expenses management system.

Currently, Korea National Housing Corporation and local governments are supplying lease apartments for low income classes but it is difficult to supply those apartments sufficiently to the classes classified as socially weak persons due limited numbers of newly built apartments and the burden of maintenance and management costs imposed on project entities. Especially, the burden of costs for the construction, repair and replacement of lease apartments is working as a factor to make it difficult to continue the projects. As a solution for that, reduction in initial work costs or standardization of MRO(Maintenance, Repair and Operation) has been promoted and executed but there is no case where the economic effect of the efforts was clearly reviewed or management technique developed for the efforts. This study is to present guidelines for the designing of low cost apartments that can reduce the cost after construction that occupies a higher percentage of LCC(Life Cycle Cost) than the costs in the stage of construction such as planning & designing cost (1%) and construction costs (25%).

Generally, a Self leveling finishing materials that is constructed in domestic is classified by cement materials and a polymer materials. Because a cement materials adds flow material(organic matter), strength of floor by fineness promulgation is used in reinforcement. A polymer materials is executing surface construction to mix polymer and uses epoxy or polyurethane on the surface after construct in factory, parking lot floor etc. A polymer floor finish of this can be high price and amount environmental pollution problem according to use of organic solvent and problem by personnel expense increase price of raw material. Also, there are a lot of problems for durability and repair maintenance because crack happens because surface intensity is strong and shock resistant strength drops in the case of an epoxy floor finish. Raw material of a polyurethane floor finish is problem of that is high price and grows restless by adhesive strength phenomenon etc. Study and utility that use mixing a cement floor finish and a polymer floor finish in domestic are propelled. Therefore, in this study, executed a cement materials and water materials and comparative analysis that mix cement material and solubility in water composition rubber latex. The results was expose that have high properties of matter while mortar that use experiment wave and solubility in water composition rubber latex uses existing materials.

Recycled fine aggregate has low quality because it contains large amount of old mortar. So, its usage is limited to a lower value-add, such as the roadbed material etc. Also, alkaline water occurred from treatment process of the waste concrete is becoming the cause of environmental problem. Accordingly, this study is to develop on the high quality recycled fine aggregate produced by low speed wet abraser using sulphuric. We investigated the properties of compressive strength of the mortar which was manufactured using recycled fine aggregate containing calcined gypsum produced by earlier mentioned process. Test results indicate that concrete using recycled fine aggregate containing calcined gypsum is higher compressive strength than concrete using other sands.

To meet the increasing demand with the limited resource, every country is trying all-out to find a solution. A large part of energy demand is used in the building, so a Korean Energy Saving Design Standard which is right to the country conditions is immediately needed. This study is trying to analyze the sensitivity of architectural elements through a simulation which considered architecture, electricity, machine overall with the typical thermal load analysis program Transys and to present a quantitative data to set up an adequate Energy Saving Design. The results of this study are as follows. Sensitivity analysis show that setting windows are more sensitive than other factors which we adopt at cooling loa. and setting temperature are more sensitive than other factors which we adopt at heating load.