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PMIS has recently been encouraged by the results of some improvement in business processes are being utilized and there. But PMIS is currently being utilized to ensure the required features that do not meet the state elements are incomplete it is true that many problems. PMIS in this study, the extent of the actual scene of the necessity and effectiveness of having a through investigation and analysis of PMIS to identify issues and barriers to improvement and present it on the site to allow you to seamlessly use the PMIS Its purpose is.

Normally, an amount invested in skyscraper projects accounts for more than general construction does, and disputes happen a lot between labor and capital due to the sequent implements of different kinds of tasks. These problems expectedly effects as an obstructive factor against the main project. One of the management methods to alleviate these disputes and disagreements which happen during the process of a project is the partnering. However, the research on the application of the partnering in the field of Skyscraper-construction is still insufficient. Thus, the following study analyzes the states of skyscraper construction and the disputes over the relationship of the main process, then suggests a way to apply the partnering in the stage of construction.

The purpose of this study is to development a environmently friendly reusing technique, through the disassembly of the cementitious joint which is one of the most universally used system. In this study, cementitious joint is made weak using the mechanism of microwave heating for efficient disassembly. And result is outed a high degree of efficiency by using the cement paste which mixed carbon powder. As a result of this study, the specimen has excellent temperature elevation characteristics which is contained carbon 92.8% from the microwave heating characteristics. The cementitious modifier which used carbon powder was able to reach enough temperature by microwave heating in the case of the specimen of 2~3mm thickness at 1800W and overdry condition.

Recently national economic development and upgrading of the industry due to the increase of electricity consumption grows, industrial power plant fly ash as a by product fly ash was increased. Used as the admixture of fly ash improves the durability of building materials as a significant influence on the consumption trend is growing. In this study, based on the replacement ratio of fly ash to obtain a variety of strength and resistance to salt damage to predict the most suitable concrete mix to obtain the basic data has been written. In results of this study obtained as follows; 1) Greater the binding ratio of 'fly Ash Concrete specimens of water', the intensity was decreased, and 20% of fly ash had higher initial strength and long term strength more than normal concrete. 2) Regarding to the 'Fly Ash Concrete specimens of chloride', moving coefficient of chlorides was low when the binder ratio of water was low.

The purpose of this study is to investigate the fire resistance of cement mortar using discarded EPS powder to improve fire resistance performance of concrete. Experimental results show that the fluidity of mortar using discarded EPS powder in particle is superior even though cementitious manufacture using traditional fibriform fireproof material has problems, fire-ball and lowering fluidity, coming from the reduction of dispersibility of a fiber. Also, cement using discarded EPS powder has same strength revelation with non-using discarded EPS powder up to 0.9% of fiber mixing ratio. Strength properties of mortar using discarded EPS powder in high temperature is better than no using it. Which shows that fire resistant performance is improved as residual compressive strength of mortar increases against non using discarded EPS between 0.3% and 0.6% of replacement ratio. But strength reduction occurs by heating because a lot of porosities are made on cement manufactures by melting of polymer powder to 1.2% of replacement ratio. According to the result, Discarded EPS powder can be used like a fireproof material. It is thought that it will be necessary to study for properties of the fire resistance by using various shape of powder and of spalling resistance of high strength concrete.

The existing rock blasting & expansive demolition agents methods that applied to small and midium sizes of rocks & concrete demolition have caused diverse problems such as dirty scattering, noise, tremor, public complaints, environment destruction, waste treatment, and so this researcher examined the possibility of rock demolition by using the expansibility of dried woods which are environment friendly and high in recycling rate and economical to solve such problems. Maximum swelling pressure of the test specimen and the tensile strength of rock were compared and it showed that φ55 Ash and Oak exceeded the range of average tensile strength of the target rock, and in the test specimen hydrating sodium hydroxide aqueous solution appeared to have exceeded the average tensile strength of the rock in the whole test specimen excepting Maple. When compared with the swelling pressure of expansive demolition agents, the test specimen that containing tap water appeared to be inferior to the swelling pressure of demolition agents, but in test specimen containing hydrating sodium hydroxide aqueous solution, φ55 Ash & Oak and φ50 Ash appeared to be similar or superior to the swelling pressure of demolition agents. Provided the swelling pressure of test specimen should be similar to the strength of rock or the swelling pressure of demolition agents, as a realistic demolition requires very high swelling(expansion), Ash seems to be able to act as a demolition material for boulder blasting in demolishing rock.

The experiment is performed to evaluate photocatalysts in visible lights. For using photocatalysts indoor, Mn or Zn doped by thermal treatment, and they were evaluated for their performance, removing acetaldehyde in visible lights. Photocatalysts are compared, which are respectively doped at high temperature(600℃, 800℃, 1000℃), and metal ions(Mn, Zn) are respectively doped at consistent ratio(3%, 6%, 9%). In the condition of 3% ratio at 1000℃, each manganese and zinc was the best performance of the removal of acetaldehyde.

Recently, in Korea, the construction industry has been rapidly increasing with diversify, larger, higher. as a result of that, lots of construction waste has been produced. and the study of construction waste has been conducted frequently, but the gypsum board waste study has not been conducted well. it is not easy to find the research for treatment and management of gypsum board waste. it is expected to increase the gypsum board waste due to develop the industry in the county and we need to reduce construction waste. the purpose of this study is to grasp the materials loss ration of the gypsum board in the apartment construction field work, and investigates, analyses the materials extra rate with each construction site and whether extra rate is proprer or not. also, this study show that gypsum board waste' treatment process and problem. and offer process improvement treatment. we expect to offer basic data to other study about this study. also envioronment will be improved by recycling materials, reduce construction waste.

This study investigates the wind speed distribution in according to the variation of Paring angles and shapes. Wind pressure tests are conducted on the Boundary Layer Wind Tunnel at Kumoh National Institute of Technology. Hot wire anemometer was used to measure the wind speed. For Paring angles, three types of angles such as 10°, 20° and 30° were selected by considering the limit angle of Paring is 30°. For measurement points, it was divided into 9 points horizontally and 17 points were measured in vertical direction at the position regarding to each horizontal point. The difference of wind pressure distributions between square Paring and circular Paring were compared. And optimal angle of Paring and shape of Paring are pointed out.

The lightweight foamed concrete specimens are made by mixing cement, gypsum, Manganese dioxide(MnO2), hydrogen peroxide, water, PP, Also, we study the physical and mechanical properties of lightweight formed concrete through diverse experiment which is to determine the optimal mixing proportion and require strength of the lightweight formed concrete. As a result of an experiment, Steel fiber is mixed, did not affect the strength, PP, increasing the amount of the compressive strength, flexural strength was increased.

A current construction site is lacking of the step that applys introduction of non-working day to progress schedule by a weather element. Unlike construction schedule, if the weather has changed, it would have an effect on whole construction schedule because the air has been pushed. Therefore, this study is pursued for help to supervision of construction schedule by taking an average of non-working day which depends on weather factors that based on data of weather Bureau for last 22years, through including holiday which is applied at real construction site and suggesting non-working day, and in this way that tie applying to construction schedule of apartments in with judging the optimum time of construction that is able to introduce statistically, at the same time.

Construction is followed by manufacturing industry in terms of accident rate. According to the annual change of domestic construction disaster rate, it was decreased, but the mortality ratio and the strength's were higher than any other country. The research estimates the construction disaster in advance and provides effective prevention measures and safety management activities. Also quantitative evaluation method is presented. The technique of data-mining using association rule analysis was applied to predict and evaluate the construction accident.

Modern people spend most of their time at work, and the firm have in working life and the emotional state of relations with, and degree of personal satisfaction in their overall impact on work life and job. Also, standing in front and the other, job performance, job performance, work my staff - based on firm ties, such as job satisfaction and self-reflection also fundamentally influenced by the impact is expected. Salaries and promotion opportunities, job satisfaction, company policies and procedures, organizational structure, business ties are due to be determined, in this study the factors affecting job satisfaction among firms - have close ties with employees on job satisfaction determine whether the impact and the ultimate goal is to analyze. Specialty contractor firm - employee relationship with the organization, trust, confidence and firm impact on confidence and trust in supervisor and organizational impact on job satisfaction and supervisor - employee relations through the organization credibility and trust in supervisor mediates leading to job satisfaction was to reveal. However, the organizational trust relationships, trust in supervisor, job satisfaction, but the organization that affect the trust, firm trust, mutual influence job satisfaction was found that.

Recently, global warming problem is a major issue in international community. The carbon dioxide (CO2) emissions in the construction industry is one of the main factors causing a global warming problem. Accordingly, various researches on CO2 emissions caused by the construction industry was carried out. However, most of the researches on CO2 emissions have been focused on CO2 emission of construction materials, the study of CO2 emission resulting from the construction site didn't carry out. Therefore, this paper introduces a system, calculating CO2 emission, which enables to calculate CO2 emission using the Construction Project Schedule Information including construction equipment in the construction phase. The system is being developed as an automated system and the system proposed is verified by a case study.

In the process of construction project, calculation of quantity and cost estimation of laborer, material, equipment, and other expenses based on design documents is very important process to decide the reasonable cost of work. Therefore, this study will be able to provide practical a tool of decision for productivity and reasonable laborer using CYCLONE model of liquid waterproofing work in apartment house building.

According to increase of the waste concrete occurrence, recycling is important more and more. This study is to recycle the waste concrete powder which is occurred in recycling process of construction waste, occupied about 30% of original waste concrete. we tried the waste concrete powder to apply on the cement extruding pannel. As a result though the strength of product containing waste concrete powder was lower than that of product containing cement only, its difference is not large.

This paper reports on a comprehensive study on the mechanical properties of expansive fiber-reinforced strain-hardening cement composite (SHCC) materials containing various replacement levels (0, 8, 10, 12 and 14%) of two type of CSA expansive admixture and 1.5% polyethylene (PE) fibers volume fraction. A number of experimental tests were conducted to investigate shrinkage, compressive strength, flexural strength, and direct tension behavior. Test results show that as expected, the different replacement levels of an expansive admixture have an important effect on the evolution of the free shrinkage of SHCC with a rich mixture. Also, two types of CSA expansive admixture show different appearance in replacement levels. In Type-1, an increase in replacement levels of expansive admixture from 12% to 14% does not lead to a significant improvement for mechanical properties; this implies that the replacement of 10% expansive admixture is sufficient. Simultaneously Type-2 shows slight improvement in more than 10% of replacement level and It implies 8% expansive admixture is sufficient.

Recently, building structure damage and number of lives lost by bomb terror is increasing. Therefore, in this study, it is aimed to present basic data for blast resistance performance of concrete structure by fiber reinforced mortar. Fiber reinforced mortar specimen is produced by using PVA, PE, PP, Carbon and Steel fiber. As a results of compressive and tensile test, In fiber reinforced martar, compressive performance was lower than plain. However, tensile performance was greatly improved. In the explosion experiment, blast resistance of mortar was greatly improved by fiber reinforced

The plaster finish as an architectural material refers to the coating materials that have been processed as mortar for wall plasters such as cement plaster, lime plaster, dolomite plaster, and gypsum plaster. Among these, the lime and gypsum plasters are widely used as the interior architectural plaster materials based on their origins in rich European resources. The lime and gypsum plasters are both prominent for their advanced insulation and ventilation abilities and have been widely used in European regions such as Germany, United Kingdom, and France. With the goal of proposing a newplastering method and a new plastering material that combines resin plaster and gypsum plaster, this research examined the physical characteristics of each material. Through this preliminary examination, the research studied the diversity of finishing mortar materials for the use of campus architecture as well as the quality of the materials which may affect the efficiency of the construction procedures. The results of this preliminary research may be utilized as fundamental references to quality evaluation procedures for future construction sites.

This study investigated porosity and permeability properties of low-density foamed concrete according to kinds of foam agent and density range to improve usability of foamed concrete. Previous experimental results, stability of foam was most excellent in the experiment that fixed at 1.0 of CaO/SiO2 ratio, 2% concentration of foam and 40% W/B ratio. In our research, AES(Alcohol Ethoxy Sulphate) and RM(Rosin Malate) used foam agent and density range was 0.4t/m3, 0.5t/m3 and 0.6t/m3. foamed slurry subjected to three stages of curing process such as air curing, steam curing, and autoclave curing. As a results, when increasing density, porosity and permeability coefficient decreased, on the other hand, compressive strength increased. Specimen used RM agent made big size continuous pore than that of AES however, relatively decresed in compressive strength. Therefore, it is to need to do further research for improving applicability of foamed concrete.

It was experimentally investigated in effects of high temperature and loading condition on the mechanical properties of concrete. This study is aimed to study the effect of elevated temperatures on mechanical properties of concrete according to compressive strength under loading. Tests were conducted on Ø100×200mm cylinder specimens, which were tested under both stressed and unstressed conditions by steady-state test. The specimens were under-loaded to 0, 20, 40 percent of their ultimate compressive strength at room temperature and subjected to temperatures ranging from 100 to 700℃, and the residual compressive strength compared to that observed at 20℃.

HPFRCC(High Performance Fiber Reinforced Cementitious Composite) is a class of FRCCs(Fiber Reinforced Cementitious Composites) that exhibit multiple cracking. Multiple cracking leads to improvement in properties such as ductility, toughness, fracture energy, strain hardening, strain capacity, and deformation capacity under tension, compression, and bending. These improves propeties of HPFRCCs have triggered unique and versatile structural applications, including damage reduction, damage tolerance, energy absorption, crack distribution, deformation compatibility, and delamination resistance. These mechanical properties of HPFRCCs become different from the kinds and shapes of used fiber, and it is known that the effective size of fiber in macro crack is different from that in macro crack. This study is an experimental finding on the engineering properties of HPFRCCs reinforced with the PE fiber. Air content tests, table flow tests and uniaxial tensile test are carried out in order to compare with the engineering properties of HPFRCCs reinforced with matrix proportion and mixing method such as workability and toughness.

Recently with the elevation of the standard of living and sense, the mental composure and the desire for affluence in a daily living highly demand the amenity and satisfaction with living. Accordingly the Architectural products are being developed in consideration of a user's sense like agreeableness rather than the center of performance in the past. This is also applied to the materials of architecture and expresses a higher level of request according to the performance of request rather than the satisfaction of the basic level of request by means of specifications. Therefore, I am putting an additional item other than high performance, high flow and high strength. The study is to define colored concrete expecting the gradual increase of demand in future and estimate the infinite possibility that concrete has in future based on current applied cases of Urban Hive. In the currents of times concrete structures increased in the use of the sensible phase but the definition and classification therein are insufficient, so it is necessary to survey and study the property of the concrete used for colored concrete, exposed concrete and other finishing. Therefore, in this research it intend to define and classify high Architectural concrete expecting the gradual increase of demand in future and estimate the infinite possibility that concrete has in future based on current domestic and abroad situations and applied cases.

Gypsum is an important building material used to provide fire resistance to constructions by reducing their temperature rises. As the hardened gypsum is exposed to fire, evaporation of both the free water and the chemical bond water is easier than that in the hardened cement paste. The purpose of this study is to investigate the utilizability of gypsum to prevent spalling failure of cement concrete exposed to fire. This paper reports the hydration behavior and fire-resistance property of a controled ordinary portland cement mortar(C) and gypsum-cement mortars with 4 types of gypsum such as anhydrite(0G), α-hemihydrate(AG), β-hemihydrate(BG) and dihydrite(2G). As a results, it is found that gypsum-cement mortars are more effective to prevent the explosive spalling failure under standard fire condition than a controled ordinary portland cement mortar, and the thicker the thickness of specimen is, the more significant the influence of gypsum is.

The purpose of this study aims to analyze the satisfaction of the residents who live in Environment-friendly housing apartments. Documentary research and questionnaire surveyes were used in this research. For the research, two apartments are chooesn in Kangseo district, Cheong-ju. The statistics analysises are taken from the 76 residnts living in certified Environment-friendly apartments. The data are analyzed by SPSS 12.0 program.

This study is conducted to suggest an effective color environment that can facilitate the treatment of diseases, the improvement of health. For the study, the interior colors of three children hospitals in Korea are analyzed. As color analytical tools, the most widely used color system, NCS(Natural Color System) is used. Based on the results of research, a methodology of color plan for children's hospital is suggested, and the limitations of this study and a direction for future are presented.

국내 주거환경은 인구의 도시집중과 지가 상승 등으로 공동주택이 대표적인 도시의 주거양식이 되고 있다. 우리나라의 대표적인 주거형태로 자리잡고 있는 아파트는 구조적으로 세대간에 벽과 천장, 바닥 등을 공유하고 있어 세대간에 소음 진동의 문제가 발생할 수 있다. 연구자료 등에 따르면 공동주택에 거주하는 사람이 받는 소음피해의 유형을 분석해보면, 옆집에서 들리는 소음으로는 문 여닫는 소리, 계단발자국 소리, 아이들 뛰노는 소리 등이 있고, 이야기 소리, TV, 라디오 소리등 공기음에 대해서는 피해를 크게 받지 않는 것으로 나타났다. 그러나 윗층에서 발생하는 소음에 대한 지적율은 매우 높았으며 아이들 뛰노는 소리, 계단, 복도의 발소리등 바닥 충격음계의 층간소음이 주요 피해요인으로 나타나있다. 국민생활 수준향상에 따라, 정온한 생활환경을 바라는 국민들의 욕구가 커지고 있어, 층간소음에 대한 민원이 증가하고 있으며, 관련 KS규격의 제정이 공고되고, 주택건설기준 등에 대한 규정이 층간소음에 대한 기준을 마련하고자하는 사회의 관심이 집중되고 있다. 이에 층간소음의 개념과 대책등에 문헌 조사를 통해 간략하게 설명하고 적합한 해결책을 제시하여 주택 층간 소음 발생시 원만한 해결을 이끌어 낼 수 있는 해결방안을 제시하는데 그 목적이 있다.

Existing domestic construction markets are compoundly tied with the matter of interests and system about the control of the progress. compare to USA, periods of the finalization of the construction work in domestic markets take about 30% more. So the new way to reduce that period except Bar Chart and CPM process management is needed, and TACT process management is invite to the finalization of the construction work of public residence. this research compares the existing Bar Chart and CPM process management and lately invited TACT process management. And also by analyzing the production elements problem shows us the solution.

Recently, in continuing to dispute around the defect repair of apartment house, it was keeping up that was not settled by conciliation, arbitration or negotiation, it was big problem that social waste by suit. It was main issue matter in this dispute that a matter of objective judgements, related matters on the litigants and defect repair term, and computing defect repair cost and so on. Among the rest, this study was researched special quality of the instituting cost, the legal consultation cost and the judgement cost of defect repair by lawsuit result. In consequence, it was classified the cost item that related defect claim, and it was exceeded that difference the lawsuit cost and the decree cost by analysis on the each cost items. For the next study, plan to deal with defect claim of house in all sincerity.

In order to prevent spalling of high-strength concrete, this study conducted analysis of fire-resistant characteristics of high-strength concrete according to changes in mixture rates of 3 ingredient complex organic fibers. The results of the study are as follows. First, as characteristic of non-hardening concrete, the fluidity and air quantity satisfied all target ranges in all combinations. As characteristic of hardening concrete, compressed strength of Plain was shown to be 76.2 MPa, 103.1 MPa in aged 7 days and 28 days, respectively. Strength according to changes in combinations of complex organic fiber types did not result in any significant difference. As fire-resistant characteristics, spalling was generally shown to be prevented in various combinations with the exception of P0N0C5. As the mixture rate of PP and NY increased, or as the mixture rate of CL decreased, spalling performance was shown to increase. In addition, in terms of economical efficiency, among combinations preventing spalling, P0N1C4 was shown to be the most superior. Such results show that the optimal combinational ratios of the 3 ingredients to prevent spalling of high-strength concrete, in terms of analysis of fire-resistant characteristics and economical efficiency, the combination of PP 0.01%+NY 0.00%+CL 0.04% is most superior.