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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
Effect of Coating Materials for Steel on the Threshold of Corrosive Amount of Airborne Chlorides and the Evaluation of Their Corrosion Speeds
Cho, Gyu-Hwan ; Lim, Myung-Hyun ; Park, Dong-Cheon ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 143~151
DOI : 10.5345/JKIBC.2015.15.2.143
Many studies have investigated the airborne chlorides that can weaken the overall durability of the concrete structures due to the corrosion of steel materials, but most of the studies have aimed to examine weathering by exposing various construction materials to the actual oceanic environment. However, with the exposure test, it was difficult to find the threshold of precise corrosive amount of airborne chlorides due to diverse deteriorating environmental factors such as ultraviolet ray, acid rain, floating material from industrial pollution as well as airborne chlorides. Therefore, in this study, an airborne chloride simulator was set up, in oder to conduct a corrosion accelerating test for steels coated by five different finishing materials. As results, it was found that the corrosion began to be observed at
for no-coated steel, at
for urethane-coated steel, at
for red lead-coated steel, and at
for stainless-coated steel, respectively. Hence, these specific data can be considered as the threshold ranges of corrosion for each coating material for steel.
Effect of Waste Marble Powder on the Fundamental Properties of High Fluidity Concrete
Lee, Yong-Moo ; Shin, Sang-Yeop ; Kim, Young-Su ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 153~160
DOI : 10.5345/JKIBC.2015.15.2.153
The marble powder is a by-product that can be freely collected during the manufacturing process of marble, such as sawing, shaping, and polishing. Disposal of this waste powder is one of the environmental problems worldwide today. Therefore, this study investigated to solve this problem by consuming the waste marble powder in high fluidity concrete, as a pore filler. For this purpose, the waste marble powder was used as a binder replacing 5%, 10%, 15%, and 20% of cement in high fluidity concrete. After mixing, slump flow test, time-to-reach the slump flow of 500mm test, O-lot test and U-box test were conducted with fresh concrete. For the hardened concrete, compressive strength was determined at the age of 28 days. According to the test results, the workability of high fluidity concrete increased with the powder of 15% replacement, and the compressive strength of high fluidity concrete also increased with the same amount of powder.
Effects of Incineration Waste Ash and Gypsum Substitution on the Properties of Blast Furnace Slag Mortar using Recycled Aggregate
Han, Min Cheol ; Han, Dong Yeop ; Lu, Liang Liang ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 161~167
DOI : 10.5345/JKIBC.2015.15.2.161
Nowadays, all the world face to the global warming problems due to the emission of
. From the previous studies, recycled aggregates were used as an alkali activator in blast furnace slag to achieve zero-cement concrete, and favorable results of obtaining strength were achieved. In this study, gypsum and incineration waste ash were used as the additional alkali activation and effects of the gypsum and incineration waste ash to enhance the performance of the mortar were tested. Results showed that although the replacement ratio of 0.5% of incineration waste ash and 20% of anhydrous gypsum resulted in the low of mortar at the early age, while it improved the later strength and achieved the similar strength to that of conventional mortar (at 91 days).
Surface Properties of Exposed-Aggregate Concrete Depending on Retarder and Water Jet Washing Timing
Park, Jun Hui ; Han, Cheon-Goo ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 169~175
DOI : 10.5345/JKIBC.2015.15.2.169
Recently, a stone is preferred as a cladding materials because of its outstanding durability and luxurious character. However, because of running out of natural resources and restriction of production, it is expected that difficulty of stable supply, and thus alternative cladding materials for concrete wall is needed. Therefore, in this research, as an alternative cladding materials, exposed-aggregate concrete is studied using saccharin based retarder. For evaluating factors, changing water-to-cement ratio, dosages of saccharin-based retarder, and timing of water jet washing were tested on the surface properties of exposed-aggregate concrete. As a result, the most favorable surface performance was obtained at 0.75 day after the placing in 25% of water-to-cement ratio, and at one day after the placing in 35 and 55% of water-to-cement ratio, 1.5 day after the placing in 65% of water-to-cement ratio with
of retarder application.
A Experimental Study on the Property of Lightweight Aggregate Concrete Using Hollow Micro Sphere
Kim, Sang Heon ; Kim, Se Hwan ; Park, Young Shin ; Jeon, Hyun Gyu ; Seo, Chee Ho ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 177~183
DOI : 10.5345/JKIBC.2015.15.2.177
In this study, the thermal conductivity, physical and mechanical properties of lightweight aggregate concretes with hollow micro sphere(HMS) are experimentally examined as a basic research for the development of structural insulation concrete. As the results of this experiment, in the case of concrete mixed with HMS, the value of slump has been reduced, so it is found that the dosage of superplasticizer should be increased. As the replacement ratio of HMS increases, it has shown that the compressive strength is somewhat decreased due to the low interfacial adhesion strength of HMS. But the thermal conductivity is found to be greatly improved with the replacement ratio of HMS increases, the thermal conductivity of HMS shows the lower value of 68% at lightweight aggregate concrete and 32% of normal concrete. Also it is found that the compressive strength is decreased and thermal conductivity is increased as the water-cement ratio increases. The most outstanding for insulation performance is observed when using 20% of HMS and 50% of water-cement ratio.
Performance Evaluation of a Connection Joint using a High-Ductility Concrete
Kim, Byeong-Ki ; Kim, Jae Hwan ; Yang, Il-Seung ; Lee, Sang-Soo ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 185~192
DOI : 10.5345/JKIBC.2015.15.2.185
Expansion joint is the essential element of the bridge in many cases. When the bridge faces chloride of preventing freezing on the surface of the bridge, the expansion joints is damaged significantly, thus this reduces service life and increases maintenance cost of the bridge. As a solution of this problem, new technology using high ductile materials for the joint without expansion joint was developed and in this research, crack control performance, preventing leaking after the cracking, and chloride resistance were experimentally evaluated. As a result of the experiment, with PCM and FRC materials, the connecting joint suffered poor crack dispersion and severe damage by the chloride penetration while with high-ductile material, the connecting joint dispersed the tensile deformation to microcracks stably up to 7.5mm. Furthermore, under the sever conditions, the leaking was prevented and penetration of chloride ions was prevented after the crack occurred.
Improving Quality of Eco-Mortar Incorporating Blast Furnace Slag and Recycled Aggregate Depending on Replacement Gypsum and Cement
Baek, Byung Hoon ; Han, Cheon-Goo ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 193~199
DOI : 10.5345/JKIBC.2015.15.2.193
As a solution of both environmental issue of reducing carbon dioxide emission and sustainable issue of exhausting natural resources, in concrete industry, many research on recycling various by-products or industrial wastes as the concrete materials has been conducted. The aim of this research is feasibility analysis of additional reaction with ordinary Portland cement and flue gas desulfurization gypsum based on the blast furnace slag and recycled fine aggregate based mortar to achieve the normal strength range. Consequently, in the case of mortar replaced 10% FGD and 30% OPC for BS, 80% of plain OPC mortar's compressive strength was achieved. Furthermore, when the water-to-binder ratio is decreased to keep the practically similar level of flow, it is expected to be achieve the equivalent compressive strength to plain OPC mortar.
Effect of Emulsified Refine Cooking Oil and Expandable Microsphere on Durability of High-Volume Blast Furnace Slag Concrete
Han, Min-Cheol ; Han, Dongyeop ; Lee, Myung-Ho ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 201~207
DOI : 10.5345/JKIBC.2015.15.2.201
In this paper, a series of experiments was conducted to evaluate the resistibility of carbonation and freeze-thawing damage of the high-volume blast furnace slag concrete using expancel, the expandable microsphere, and ERCO, emulsified refine cooking oil. The concrete mixture of 0.45 water-to-binder ratio with 60% of blast furnace slag was evaluated for carbonation, freeze-thawing resistibility, SEM, and porosity. According to the previous research, replacing ERCO contributes on improving carbonation resistibility with capillary pore filling effect by soap foaming reaction of ERCO while significantly decreased freeze-thawing resistibility. To improve this decreased freeze-thawing resistibility, expancel was used, and thus freeze-thawing resistibility was improved as the replacement ratio of expancel was increased. It is considered that the selective volume shrunken effect of expancel due to the external pressure and decreased air void spacing factor due to expancel.
Characteristic Analysis of Utilization of Security Deposit for Repairing Defects Using Statistical Analysis
Seo, Deok-Seok ; Lee, Ung-Kyun ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 209~215
DOI : 10.5345/JKIBC.2015.15.2.209
This study was conducted to analyze the actual utilization rate of the deposit for defect repair of apartment complexes and its influential factors. We analyzed the data on enforced defect deposit cases by using one-sample t-test, Pearson's correlation analysis, and simple linear regression analysis. The difference between the deposit amount specified and the enforcement amount actually disbursed was found to about 0.51%. The change rates for short-term costs amounted approximately to
and 130,000 KRW/household per year, and those for long-term costs were
and 123,207 KRW/household per year. The results warrant the need for further research on establishing a deposit amount based on actual statistical data.
Measuring Relative Efficiency of Korean and Japanese Construction Firms Using Data Envelopment Analysis
Choi, Jae-Kyu ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 217~226
DOI : 10.5345/JKIBC.2015.15.2.217
The aim of this study is to compare relative efficiency Korean and Japanese construction firms over the period of 2000-2013, and to analysis relative efficiency using Data Envelopment Analysis (DEA). This study employs DEA in analyzing of 7 Korean construction firms and 8 Japanese construction firms using 2 input and 1 output variables. The efficiency results of this study is temporarily lowered due to IT Bubble Decay and Global Financial Crisis. The efficiency of Korean construction firms from 2000-2001 is lower Japanese construction firms, but the efficiency of Korean construction firms from 2002-2013 is higher Japanese construction firms. These results mean that the management of Korean construction firms were operating more efficiently than Japanese construction firms.
A Development of Safety Education Model for a Foreign Worker in Domestic Construction Site
Jeong, Gyeong-Hwan ; Lee, Hye-In ; Kwon, Hye-Ri ; Park, Jung-Eun ; Shin, Yoonseok ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 227~235
DOI : 10.5345/JKIBC.2015.15.2.227
For last decade, the number of foreign workers in all industries has been increased continuously. In the construction industry, the number of foreign workers has also increased as 80,000 persons in 2010. According to the increase of foreign workers at domestic construction sites, the frequency of construction disasters has increased as well. The safety education can be a effective solution to decrease the construction disaster. So, it is necessary to develop the appropriate education system for foreign workers. Therefore, the objective of this study is to propose a safety education model for foreign workers and to develop the prototype system. In a result of that, a new safety education model and prototype system was constructed based on the method of E-learning. The system can support for foreign workers in domestic construction sites to understand the safety education easily. And, it can also assist the safety manager to educate and manage the foreign workers efficiently.
Information System for Managing Cost Reimbursable Construction Projects
Kang, Namhee ; Song, Hojeong ; Kim, Hyunjung ; Choi, Jaehyun ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 237~247
DOI : 10.5345/JKIBC.2015.15.2.237
The project management information system (PMIS) has recently been developed by using the information technology(IT) in order to implement advanced information management technology to construction industry in Korea. The PMIS has been applied not only to domestic construction projects, but also to some overseas projects executed by Korean construction companies. This study was performed to develop the PMIS that is tailored to the US construction IT market. It has been monopolized by the US-based IT companies, but other companies are recently emerging with competitive technology and market strategy. As a preceding study, existing commercially available systems were analyzed, and the required features of the PMIS were identified by analyzing the core elements of contract, process and cost management about construction projects in the US. Then, the PMIS was developed based on the aforementioned analysis results. The system includes the document management module with an internal electronic approval system, the cost-plus-based automatic labor cost calculation module, and the progress management module to support the integrated project cost management. In addition, the functionality of the developed system was verified by experts about construction management in the US via questionnaire survey. The developed PMIS, in this study, is expected to be applied not only to the US construction IT market as a system specialized for the US construction industry, but also to other oversea markets in the future.
Individual Factors of Influencing the Innovative Behavior of Building Construction Field Managers
An, Sung-Hoon ; Mbale, Michael Bulunda ;
Journal of the Korea Institute of Building Construction, volume 15, issue 2, 2015, Pages 249~255
DOI : 10.5345/JKIBC.2015.15.2.249
The competition of construction market is keener, so construction companies are seeking the methods for improving the performance. Construction field organizations and managers should have an innovative behavior to improve the performance. However, construction field organizations and managers are negative to innovation because they are generally conservative. Therefore, the purpose of this study is to analyze the factors to influence the innovative behavior of building construction field managers. In this study, self-leadership, feedback seeking behavior and job involvement are selected the factors to influence the innovative behavior by literature reviewing. The results of correlation analysis showed that the behavior-focused strategies in self-leadership and the job involvement influence the innovative behavior of building construction field managers. In addition, the individual characteristics such as marriage, experience, position and type of employ influence the innovative behavior of their. This study is expected to help to improve the performance management system in construction field organizations.