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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korea Institute of Building Construction
Journal Basic Information
Journal DOI :
The Korean Institute of Building Construction
Editor in Chief :
Volume & Issues
Volume 15, Issue 6 - Dec 2015
Volume 15, Issue 5 - Oct 2015
Volume 15, Issue 4 - Aug 2015
Volume 15, Issue 3 - Jun 2015
Volume 15, Issue 2 - Apr 2015
Volume 15, Issue 1 - Feb 2015
Selecting the target year
Hardened properties of the cement based Basalt powder sludge mortar for surface preparation
Jang, Myung-Houn ; Choi, Heebok ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 451~456
DOI : 10.5345/JKIBC.2015.15.5.451
This study aimed to evaluate of the hardened properties (mortar consistency, setting time, absorption properties, drying shrinkage, and bond strength) of the basalt powder sludge mortar recycling a basalt powder sludge occurred during the manufacture process of basalt stone as a replacing material for the sea-sand used to cement filling compound for surface preparation. The hardened mortar made of the basalt powder sludge showed an enhanced performance or similar with the properties of normal mortar used to cement filling compound for surface preparation. But, the drying shrinkage was increased more than a normal cement mortar in the hardened mortar made of the basalt powder sludge since curing 8 - 9days. And the bond strength is low in the hardened mortar used the basalt powder sludge. On the whole, properties of the hardened mortar used the basalt powder sludge correspond to the required minimum quality criterion in the KS F 4716 'cement filling compound for surface preparation'.
An Experimental Study on the Time-Dependent Deformation of the Alkali Activated Slag Concrete
Lee, Young-Jun ; Kwon, Eun-Hee ; Park, Dong-Cheon ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 457~464
DOI : 10.5345/JKIBC.2015.15.5.457
The alternative material for cement has been attracting attention in construction projects. Especially, the alkali activated slag(hereafter, AAS) concrete is able to use for a structural vertical member because of 40MPa of compressive strength, However, the research about time-dependent deformation such as creep which is important to strength member is insufficient. Therefore, in this study, experiments were performed with respect to time-dependent deformation including the drying shrinkage and creep deformation of AAS concrete. The creep deformed ratio of AAS concrete was more than OPC concrete by approximately 4.3% and the dry shrinkage deformation of AAS concrete was more than OPC concrete by approximately 69%. The large amount of sodium silicate, alkali activator, is added causing temperature crack than promoted drying and drying creep which is confirmed by water ration test and SEM.
Effect of Bending Angle and Embedment Length on the Bond Characteristics of V-shaped Tie Reinforcement
Kim, Won-Woo ; Yang, Keun-Hyeok ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 465~471
DOI : 10.5345/JKIBC.2015.15.5.465
This study proposed V-shaped tie bar method as an alternative of internal cross-tie for reinforced concrete columns in order to enhance the constructability and confinement effectiveness of the lateral tie bars. A total of 35 pull-out specimens were prepared with the parameters of concrete compressive strength and bending angle and embedment length of the V-shaped bar to examine the bond stress-slip relationship of the V-shaped tie bar. The bond strength of the V-shaped tie bars with the bending angle not exceeding
was higher than the predictions obtained from the equations of CEB-FIP provision. Considering the constructability and bond behavior of the V-shpaed tie bar, the bending angle and embedment length of such bar can be optimally recommended as
and 6db, respectively, where db is the diameter of the tie bar.
Characteristics of the Human Strength Acting on the Lightweight Wall of Buildings
Choi, Soo-Kyung ; Roh, Yong-Woon ; Kim, Sang-Heon ; Lee, Young-Do ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 473~481
DOI : 10.5345/JKIBC.2015.15.5.473
The purpose of this research is to comprehend experimentally the characteristics of human strength for using as the basic data of impact resistance test method of lightweight wall. Human motions exerting static load are classified to 4 types. Pushes with two hands or shoulder are defined as the instantaneously forcing motions with hands or shoulder put on the force plate. Leanings back or one-hand against the wall are defined as motions of taking a rest in their respective comfortable posture. Human motions exerting dynamic load are classified to 3 types. Selecting 3 levels of motion strength (weak, middle, strong), 3 levels of force plate stiffness (A: 20kN/cm, B: 4.7kN/cm, C: 2.2kN/cm), and 30 male subjects, load was measured when they applied strength to the force plate. Results of this research are as follows: (1) The maximum load ratio (Pmax/W) of static load for each motion was 1.17-1.25 in two hands pushing, 0.95-0.99 in shoulder pushing, 0.16-0.18 in back leaning, and 0.12-0.15 in one hand leaning. (2) Human dynamic load and object collision were different in the load characteristics. (3) The maximum load ratio of dynamic load for each motion was 10.07 in heel kick, 4.46 in shoulder hitting, and 5.58 in fist blow.
An Experimental Study on the Residual Compressive Strength of PCM Depending on Temperature Variations
Seo, Dong-Goo ; Koo, In-Hyuk ; Yoon, Ung-Gi ; Kim, Bong-Chan ; Kim, Hyung-Jun ; Kwon, Young-Jin ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 483~489
DOI : 10.5345/JKIBC.2015.15.5.483
The Purpose of this study was to establish the basic data on the mechanical properties of PCM in the high temperature range. To this end, an experiment was conducted on the characteristics of the residual compressive strength by temperature (100, 200, 400 and
) with a fixed temperature heating. An after heating test was performed to investigate the properties after fire damage. The result showed that the residual compressive strength of PCM had a tendency to decrease, regardless of the type of polymer. It was also found that when the contents were low, the residual compressive strength started to greatly decrease from the high temperature range of
, and that the specimen containing PAE showed a steeper slope than the specimen containing EVA. However, since little studies have been conducted on the mechanical properties of PCM with the high temperature, it is considered that, in addition to this study, basic studies must be preceded, including studies on the repairing methods.
Analysis of Defect Repair Cost by Work Type based on Defect Inspection of Apartments
Lee, Jin-Eung ; Kim, Byung-Yun ; Jeong, Byung-Joo ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 491~500
DOI : 10.5345/JKIBC.2015.15.5.491
This study investigated defect status by work type, based on the report data of defect inspection results, acquired by consumers' request to safety inspection agencies, before the expiration of legal defect repair warranty period. In fact, the data was not acquired by centering on suppliers, namely, construction companies in relation with the defects becoming causes to increase construction cost of apartments. This study aims to provide objective and basic data for quality improvement at construction stage and for solution to defect disputes. The study results are presented below: (1) The number of defect cases occurring from architectural work among total work types were 1,986, defect occurrence rate was 62.5%, and defect repair cost was KRW
, which stood at 78.2% of the total work types. This means the defect occurrence rate and defect repair cost in architectural work are bigger than those of other work types. (2) Major defects in architectural work were revealed in the following order: cracks from frame work, inferior interior finishing work, inferior finishing work of plaster/masonry works, water leak/damage from waterproof work and withering/omission from landscape work. The total repair cost of the major selected defects was KRW
, and was analyzed to take up 37% of the total defect repair cost.
Influence of Organizational Culture on Performance of Building Construction Project
An, Sung-Hoon ; Bitamba, Bauma Frigeant ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 501~506
DOI : 10.5345/JKIBC.2015.15.5.501
Construction companies want to improve the abilities of field organizations for improving the performance of construction projects. It is possible to improve the performance of construction projects by managing the field organizational culture, due to the field organizational culture is concerned with the abilities of construction field organizations. Therefore, the purpose of this study is to reveal the influence of the field organizational culture on the performance of building construction projects. The results of this study showed that field organizational cultural characteristics influence on the performance of construction projects. Best performed projects have the higher characteristics of a consensus culture and rational culture, and worst performed projects have the lower characteristics of a development culture and consensus culture. In addition, the characteristics of rational culture and hierarchy culture effect on the performance in worst performed projects. This study is expected to help to improve the performance management system in construction field organization.
Improvements of the Bidding Process through Order Case Analysis of Specialty Construction
Kim, Daewon ; Shin, Dae-Woong ; Shin, Yoonseok ; Kim, Gwang-Hee ; Yoo, Sangrok ; Park, Wonjun ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 507~514
DOI : 10.5345/JKIBC.2015.15.5.507
In recent years, the number of construction projects carried out to repair and reinforce newly built structures and facilities has been on the rise compared to the number of new construction projects, accounting for more than 90 percents of all construction projects carried out by specialty construction companies. However, as some of the ordering parties fill out the required tasks incorrectly, the wrong information on construction bids is announced, and the specialty construction companies that hold a license and technology are unable to get the job at the right time. As such, it is critical to prevent unnecessary time and expense related to the correction of incorrect bid announcements by providing accurate information and definitions, because the tasks of each specialty construction work stipulated in the framework act of construction industry are vague. Therefore, the causes and problems were analyzed based on the correction cases of bid information, and a plan that can address the problem will be proposed. The result of this study can be utilized as fundamental data to achieve an institutional improvement in the bidding service for the specialty construction companies.
Influence Factors Suggestion and Prediction Model Development of Regional Building Damage Costs according to Typhoon
Kim, Ji-myung ; Kim, Boo-Young ; Yang, Seongpil ; Oh, Jeongill ; Son, Kiyoung ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 515~525
DOI : 10.5345/JKIBC.2015.15.5.515
Currently, according to the climate change, serious damage by typhoon has been occurred in the world. In this respect, the research on the prediction model to minimize the damage from various natural disaster has been conducted in several developed countries. In the case of U.S, various models to predict building damage costs have been used widely in many organizations such as insurance companies and governments. In South Korea, although studies regarding damage prediction model according to typhoon have been conducted, the scope has been only limited to consider the property of typhoon. However, it is necessary to consider various factors such as typhoon information, geography, construction environment, and socio-economy factors to predict the damages. Therefore, to address this issue, first, correlation analysis is conducted between various variables based on the data of typhoon from 2003 to 2012. Second, the damage prediction model by using regression analysis is developed based on suggested influence factors. The findings of this study can be utilized to develop the model for predicting the damage costs of buildings by typhoon like HAZUS-MH of US.
Comparative Analysis on the Impact of Construction Site Working Conditions on Worker Satisfaction - Regarding the Korean and Korean-Chinese Workers -
Lee, Hoon-Sook ; Yun, Sue-Yeon ; Kim, Kyung-Hwan ; Kim, Jae-Jun ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 527~536
DOI : 10.5345/JKIBC.2015.15.5.527
This research focuses on comparing the impact that working conditions have on the job satisfaction of Korean and Chinese-Korean construction workers. The data shows that factors such as the quality of wages, food catering, and leisure facilities showed a positive correlation on the workers' satisfaction. Further comparative analysis showed differences between the effect these factors have on the satisfaction of Korean workers and Chinese-Korean workers, who occupy the highest portion of the foreign workforce in Korea. The analysis concluded that to the Chinese-Korean workers, wage had the strongest impact on their satisfaction over other factors, whereas this difference was not present in the Korean workers. The results of this study highlighting these differences between the worker groups can contribute to developing the efficiency of the management of construction sites in Korea.
Analysis on Job Stress of Office Worker in the Construction Company and Reduction Measures
Shin, Won-Sang ; Son, Chang-Bae ;
Journal of the Korea Institute of Building Construction, volume 15, issue 5, 2015, Pages 537~543
DOI : 10.5345/JKIBC.2015.15.5.537
This study is to provide the measures of the reduction which can improve the business efficiency of the office workers of construction company through the analysis of the status of their job stress. The important results obtained through this study are as follows. Firstly, the research on impact factor of job stress showed the performance appraisal and responsibility for business performance are the most stressful factors. Secondly, the research on the problems of activities for stress reduction carried out in the current workplace showed that the most office workers indicated the deficiency of financial investment and exploration of ideas related to the activities and insufficiency of public relation of activities.