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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 14, Issue 6 - Dec 2014
Volume 14, Issue 5 - Oct 2014
Volume 14, Issue 4 - Aug 2014
Volume 14, Issue 3 - Jun 2014
Volume 14, Issue 2 - Apr 2014
Volume 14, Issue 1 - Feb 2014
Selecting the target year
Investigation of Field Construction and Economic Efficiency for Steel Plate-Concrete Structures with Application of Parking Building
Han, Kwon-Gyu ; Park, Ho-Young ; Han, Kyung-Bo ; Choi, Byong-Jeong ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 1~10
DOI : 10.5345/JKIBC.2014.14.1.001
The SC structure can have relatively liberal sectional surfaces, and allows modularization for pre-forming in factories and structural stability. It can be used for the shear walls in the core of general buildings or the structural members for parking buildings. In the future, it could be applied to moving large bus terminals, and widely used for general industrial structures as it can expedite the process compared to other methods. This study examined the applicability of SC structures to the retaining walls of a parking building and reviewed its economic value by comparing its construction term, quality control benefits, and cost compared to RC structures. It was found that SC structures are about 1.6-1.7 times more expensive than RC structures in terms of the cost of fabrication and installation. However, the construction term can be reduced by 27% to save indirect costs for constructors, as well as the cost of removing molds and material loss required when installing RC structures.
The Quality Status of Aggregate for Domestic Ready-mixed Concrete and the Effect of Aggregate Quality in Concrete
Kim, Yong-Ro ; Lee, Jae-Hyun ; Min, Choong-Siek ; Park, Jong-Ho ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 11~20
DOI : 10.5345/JKIBC.2014.14.1.011
This research examined the effect of the quality of aggregate on concrete workability and compressive strength through an investigation into regional aggregate used in domestic ready mixed concrete plants. Through the research, it was found that aggregate for ready mixed concrete shows poor quality overall. The main factor of deterioration in the quality of the concrete is the particle size of fine aggregate and fine particle content in coarse aggregate. The quality of aggregate significantly influences concrete's workability, which is defined based on 0.08mm passage related with powder and absorption. In addition, poor aggregate quality leads to increased water content in concrete to secure workability, which is related with a decline in the compressive strength and durability of concrete.
A Study on Carbonation Resistance of Concrete Using Surface-coated Lightweight Aggregates
Eom, In-Hyeok ; Jeong, Euy-Chang ; Kim, Young-Su ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 21~28
DOI : 10.5345/JKIBC.2014.14.1.021
The purpose of this study is to investigate the mechanical properties and carbonation resistance of concretes using lightweight aggregate coated surface finishing materials. To evaluate the mechanical properties and carbonation resistance of concrete, slump, air amount, air-dried unit volume weight, compressive strength, and carbonation depth are tested. In terms of the unit volume weight of concrete, air-dried unit volume weight of concrete using coating lightweight aggregate was measured as
. When using coating aggregate, compressive strength of concrete at 28 days was measured as much as 82.7~95.9% of the compressive strength using non-coating aggregate. It is found that compressive strength tends to decrease with coating lightweight aggregate. However, all concretes using coating lightweight aggregate except O-LWAC satisfied the criteria for 28-day compressive strength suggested in KS. The measurement of carbonation depth when the water-repellent agent was used found that carbonation depth was reduced by as much as 2.6~6.1%. On the other hand, when using polymer waterproof agent, carbonation depth was reduced by as much as 8.6~12.0%. Consequently, to improve carbonation resistance, polymer waterproof agent was more effective than water-repellent agent. In particular, epoxy showed the most outstanding performance.
Development of a Student-Centered Leaning Tool for Construction Safety Education in a Virtual Reality Environment
Son, JeongWook ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 29~36
DOI : 10.5345/JKIBC.2014.14.1.029
To meet changing education needs due to globalization, interdisciplinary convergence, and ICT development, it is necessary for engineering disciplines to provide student-centered education. Not only do teaching methods using ICT reproduce teaching contents in a digital format, but they are also expected to be effective media for constructive student-centered learning whereby learners build knowledge themselves. The aim of this study was to develop a tool for safety education using virtual reality technology. To achieve the objectives, the author defined the requirements and constraints of the tool, and implemented a 3D educational tool in a virtual reality environment. A pilot test with 10 students showed positive results.
Properties of Compressive Strength of Mortar Based on High-activated Blast Furnace Slag using the Slag by-product as an Activator
Lee, Bo-Kyeong ; Kim, Gyu-Yong ; Koo, Kyung-Mo ; Shin, Kyoung-Su ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 37~44
DOI : 10.5345/JKIBC.2014.14.1.037
Recently, many efforts related to the utilization of industrial by-products have been made to reduce carbon dioxide emissions in the construction industry. Of these various efforts, concrete incorporating ground granulated blast furnace slag (BFS) provides many advantages compared to conventional concrete, such as high long-term compressive strength, improved durability and economic benefits because of its latent hydraulic property, and low compressive strength at early curing age. This paper investigates the compressive strength of high-activated ground granulated blast furnace slag blended mortar with slag by-product S type(SBP-S). The results of the experiment revealed that incorporating high-activated ground granulated blast furnace slag would affect the compressive strength of mortar. It was found that increasing the Blaine fineness and replacement ratio of slag by-product S type shows high compressive strength of mortar at early curing age because of its high
and CaO contents in the slag. It is confirmed that an increase of curing age does not affect the compressive strength of mortar made with slag by-product S type at a high curing temperature. Moreover, it is possible to develop and design concrete manufactured with high-activated ground granulated blast furnace slag as binder considering the acceleration curing conditions and mix proportions.
Assessment of Requirements for Successful Mobile Project Management Information Systems
Lee, Ung-Kyun ; Jeong, Hyung Seok David ; Woldesenbet, Asregedew ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 45~53
DOI : 10.5345/JKIBC.2014.14.1.045
The objective of this study is to assess the requirements of tablet PC-based PMIS applications designed for use on construction sites to determine whether these new programs can play a significant role in increasing the efficiency of a project. In this research, the current market conditions of PMIS running on a tablet PC were analyzed. In addition, two industry surveys were conducted. A research team interviewed some industry experts and identified fourteen useful and desirable functions that can be incorporated into tablet PC-based applications and project management tools. Through a questionnaire survey, the most effective functions for the tablet PC-based PMIS were identified. The three top-rated functions among those suggested were Contact Information for Job-Related Personnel; Receive and Respond to Submittals, RFIs, and Notices; and Problem Solving for Design and Engineering Issues. The results of this research are expected to provide helpful information for mobile application developers and members of other interested groups in the construction industry.
Analysis on Calcination of Cementitious Powder of Waste Concrete for Raw Cement
Park, Dong-Cheon ; Kwon, Eun-Hee ; Ahn, Jae-Cheol ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 54~60
DOI : 10.5345/JKIBC.2014.14.1.054
The purpose of this study is to examine whether cementitious powder separated from waste concrete can be used as an alternative raw material to limestone and reduce the usage of natural resource (limestone) and
emission based on recycling cementitious powder from waste concrete. Experiments actually analyzed the chemical composition of cementitious powder and performed hyperthermia analysis, measurement of free CaO and XRD analysis to measure the degree of recovery of hydration in the model of cementitious powder manufactured based on chemical composition. These were performed in each cementitious powder model at different calcination temperatures such as
. Through the experiments, it was found that the recovery of hydration was at a level which can be used as the alternative raw material for limestone, but the replacement ratio was directly affected by the degree of mixing of fine aggregate in less than
, which cannot be separated from cementitious powder. It was shown that there was no difference in the production of compounds involved in hydration at calcination temperatures of
or higher. Therefore, to pursue the replacement of limestone and reduction of greenhouse gas by recycling cementitious powder, the development of technology to efficiently separate aggregate fine powder is required.
Modified Sulfur Distribution and Compressive Strength Characteristics of Modified Sulfur Mortar Based on the Mixing Method and Curing Condition
Jung, Byeong-Yeol ; Lee, Sang-Soo ; Song, Ha-Young ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 61~67
DOI : 10.5345/JKIBC.2014.14.1.061
As industry advances, the production of industrial sulfur is increasing every year. Therefore, this study intended to investigate the modified sulfur distribution and compressive strength characteristics of modified sulfur mortar based on the mixing method and curing conditions by adding modified sulfur with a melting point of approximately
in order to provide basic data for the application of the modified sulfur to the mortar or concrete. The results of the experiment showed that the mixture of fine aggregate and cement with water, followed by the addition of modified sulfur, would be most advantageous in terms of fluidity and strength. The results of EDS analysis also showed that the distribution of sulfur was the best. In terms of the curing conditions, the highest compressive strength was achieved through water curing and air dry curing at
. However, it was found that the long-term strength was adversely affected by curing at over
Formation of Hydroxyapatite in Portland Cement Paste
Chung, Chul-Woo ; Lee, Jae-Yong ; Kim, Ji-Hyun ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 68~75
DOI : 10.5345/JKIBC.2014.14.1.068
In order to increase the integrity of the wellbore which is used to prevent the leakage of supercritical
, it is necessary to develop a concrete that is strongly resistant to carbonation. In an environment where the concentration of
is exceptionally high,
ion concentration in pore solution of Portland cement concrete will drop significantly due to the rapid consumption of calcium hydroxide, which decreases the stability of the calcium silicate hydrate. In this research, calcium phosphates were used to modify Portland cement system in order to produce hydroxyapatite, a hydration product that is strongly resistant to carbonation under such an environment. According to the experimental results, calcium phosphates reacted with Portland cement to form hydroxyapatite. The formation of hydroxyapatite was verified using X-ray diffraction analyses with selective extraction techniques. When using dicalcium phosphate dihydrate and tricalcium phosphate, the 28-day compressive strength was lower than that of plain cement paste. However, the specimen with monocalcium phosphate monohydrate showed equivalent strength to that of plain cement paste.
Study on the Quality Improvement through Analysis of the Cause of the Structure Design Drawing in the Internal Reinforced Concrete Structures
Kim, Byung-Yun ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 76~86
DOI : 10.5345/JKIBC.2014.14.1.076
The cause of crack on reinforced concrete structures is varied, while the studies, which have intended to analyze this in the material side, have been the mainstream so far. Therefore, in this study, we intended to suggest the proposals for enhancement of the system to reduce crack and to improve the quality of the reinforced concrete structures, by reviewing the cause of crack mainly in the structural aspect and analyzing the practices and the system. The result has been shown as following. (1) As one of the measures for improving the constructional system related to the structure, it is to enhance the relevant system so that design on construction, structure, and equipment, can be separately ordered or jointly ventured, and the owner or the agent of the owner can discuss and mediate the business in each specialized field. (2) Importance on construction supervision and new establishment of regulations related to structure supervision.
Experimental Study on Field Applicability of Tightened Coupler with Two-Way Threading
Park, U-Yeol ; Hong, Seong-Wook ; Yang, Jin-Kook ; Ko, Suck-Hwa ; An, Sung-Hoon ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 87~93
DOI : 10.5345/JKIBC.2014.14.1.087
A tightened coupler with two way-threading is suggested to overcome the previous one-way threaded coupler. The experiment and a mock-up test were conducted to analyze the constructability of the suggested coupler. The aim of the mock-up test was to assemble the suggested coupler in horizontal rebar of mat footing and vertical rebar of semi-fabricated column bars. The method using the suggested coupler in semi-fabricated column bars is developed by analyzing the problem of fabricated column bars using the one-way threaded coupler. The result of the mock-up test showed that the time required to assemble the suggested coupler in the horizontal bars is shorter than it is for the one-way threaded coupler. In addition, the method using the suggested coupler in semi-fabricated column bars has advantages such as lower working loads, supporting safe work and strongly tightening the rebar. From these results, it is revealed that the suggested coupler is adequate to use in rebar work in terms of cost, quality and time.
Effects of Crushed Shells on the Physical Properties of Cement Mortar
Kim, Ji-Hyun ; Chung, Chul-Woo ; Lee, Jae-Yong ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 94~101
DOI : 10.5345/JKIBC.2014.14.1.094
Approximately 240,000 tons of waste shells are produced annually in the south and west coast of South Korea. Some of these waste shells (oyster, cockle) are recycled as seeding collector and fertilizer, but most are dumped illegally near the coast. One of the alternative solutions that can economically utilize a large amount of these waste shells is to apply them to the production of construction materials. In this research, the basic physical properties of waste shells such as oyster, cockle, clam, manila clam were investigated, and were used to prepare cement mortar with a 25% replacement ratio of sand. According to the results, the 28 day compressive strength of cement mortar with cockle and manila clam shells was similar to that of plain cement mortar. The compressive strength decreased by about 18% when clam was used. However, the cement mortar with oyster shell showed about a 35% reduction in 28-day compressive strength, and two times the absorption capacity of plain cement mortar. The reduction in compressive strength and the increase in absorption capacity were mostly associated with the porous nature of the oyster shell.
Collaborative Relationship Analysis between Members of Apartment Construction Organizations
Kim, Jae-Yeob ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 102~109
DOI : 10.5345/JKIBC.2014.14.1.102
The purpose of this study is to analyze collaborative relationship between members of a building construction organization. For the analysis of collaborative relationship, this researcher collected data by conducting a questionnaire survey with members of three large building construction organizations for apartment housing. The analyzed contents of collaborative relationship were the 'frequency of communication between organizational members' and their 'reliability'. According to the analysis of communication network, construction managers had low frequency of communication, whereas those responsible for each area, like construction deputy managers, had high frequency of communication. It indicates that middle managers are at the center of communication related to construction work in construction organizations. According to the analysis of reliability network, construction managers showed highest reliability, and employees at the top level in an organizational map also showed high reliability. Since they generally have a lot of experience, are some older of age, and assume responsibility for work, they are considered to receive reliability from other organizational members. This study proved that it was possible to numerically express reliability of organizational members, which is an abstract concept, and analyze it. Therefore, it is expected that the analysis result will highly be likely to be used in the area of construction management.
A Study on the Estimation of Autogenous Shrinkage of High Strength Mortar incorporating Mineral Admixture by Equivalent Age Method
Han, Min-Cheol ;
Journal of the Korea Institute of Building Construction, volume 14, issue 1, 2014, Pages 110~117
DOI : 10.5345/JKIBC.2014.14.1.110
The objective of this study is to investigate an effect of curing temperature on autogenous shrinkage of high strength cement mortar with 0.15 of W/B incorporating fly ash and silica fume in terms of equivalent age. The contents of fly ash and silica fume are varied from 10% to 30%. Non linear regression model applying equivalent age was used to estimate the autogenous shrinkage evolution. To obtain apparent activation energy(
), setting time method by Pinto and existing method were calculated and compared respectively. Test results showed that use of silica fume increased autogenous shrinkage while use of fly ash decreased it. It was also found that poor agreements were obtained when
by setting time was applied. But, application of existing
resulted in a good agreement between calculated autogenous shrinkage and measured one.