Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Construction Engineering and Management
Journal Basic Information
Journal DOI :
Korean Institute Of Construction Engineering and Management
Editor in Chief :
Volume & Issues
Volume 1, Issue 4 - Dec 2000
Volume 1, Issue 3 - Sep 2000
Volume 1, Issue 2 - Jun 2000
Volume 1, Issue 1 - Mar 2000
Selecting the target year
A Study on Improving Concrete Quality Control using Customized Checklist
Park Sangmin ; Kim Changduk ;
Korean Journal of Construction Engineering and Management, volume 1, issue 2, 2000, Pages 53~62
A concrete element is obtained through multi-steps, and its quality is affected by site conditions and control constituents of procedures. In these regards, in order to assure designed qualities of concrete and associated materials of the element good quality control method is necessary in various procedures. The existing quality control measures do not satisfy the requirements for the quality control activities at each production step. This study provides a more effective checklist for each phase of concrete work, which improves existing quality control checklist through extensive research on current practices and surveys from expertises. This paper also proposes the application of multi-facet codes to develop a customized checklist to improve the efficiency in field practices and the effectiveness in assuring the designed performance of concrete. This study finally provides a more effective checklist for each phase of concrete work by improving usability of the developed project sensitive matric quality control checklist through application experiments on construction project sites.
Effect of Inorganic Pigments on the Workability of Cement Mortars
Lee Jae-Yong ; Go Seong-Seok ; Lee Hyun-Soo ;
Korean Journal of Construction Engineering and Management, volume 1, issue 2, 2000, Pages 63~70
Since inorganic pigment, among admixtures used for cement composites, can raise the esthetic value of a building due to its effect of coloring, it can be assumed that the quantity consumed is expected to increase in connection with the recent trend of emphasizing the beautiful sights of the city. We carried out a flow test by changing the mix proportion of the cement mortar mixed with an inorganic pigment, water-cement ratio and pigment mixing ratio in order to present the basic materials for utilizing colored cement mortars. In construction by exploring the effect of inorganic pigments on the workability of cement mortar. In case of red pigment mortar and yellow pigment mortar, the workability was found to be rapidly decreased. To secure proper workability, it is necessary to increase the amount of mixing water, or to use superplasticizer. In case of green pigment mortar, however, it recorded
, showing that there was almost no change in flow. In case of black pigment mortar, it was also confirmed that there is no need to consider workability.
A Project Delivery System Selection Model for Large Public Construction Projects
Hyun Chang-Taek ; Seo Yong-Chil ; Lee In-Keun ; Ryu Kil-Sang ; Lee Seong-Seok ;
Korean Journal of Construction Engineering and Management, volume 1, issue 2, 2000, Pages 71~80
Project delivery systems determine the relationship, responsibility, authority and the scope of works of those involved in project, hence, optimum project delivery system should be selected to so that construction project would be executed successfully, Until now, the traditional design-bid-build mainly has been used for public projects, but the government is making efforts actively to introduce other methods such as design-build, alternative bidding by its policy. However, delivery systems should be determined through considering physical projects characteristics, owner's goals, external factors, etc, rather than government' policy. Therefore, the purpose of this research is to propose objective delivery system selection criteria and delivery system selection model, which help owners to select the suitable delivery system through quantitative and reasonable manner.
An Improvement Strategy of Construction Safety Performance Considering Safety Level of Construction Firm
Park Chan-Sik ; Son Chang-Baek ; Hong Sung-Ho ;
Korean Journal of Construction Engineering and Management, volume 1, issue 2, 2000, Pages 81~88
Planning and control for safety management executed by the head office is one of the most important parts for improving safety level of construction company. So this study is initiated with the purpose of suggesting an improvement strategy to perform effective and rational safety management at the head office. In order to investigate the current status of safety management of large construction firms in the Korean construction industry, the safety criteria related to the head office which are used in the Supermerit Certification System were chosen and examined by industry expert. The selected criteria are used for mail questionnaire. The survey was performed for 79 construction firms. Based on the 3-year average accident rate of 79 firms(1.20), the safety level of firms are classified. The safety improvement strategies for the below and the above are proposed respectively.
An Integrated Cost and Schedule Control Process Model Using Earned Value Management System
Baek Seung-ho ; Kim kyung-rai ; Lee Yu-Seb ; Lee yong-gyu ;
Korean Journal of Construction Engineering and Management, volume 1, issue 2, 2000, Pages 89~97
This research has been Initiated to provide an effective management tool for budget control of the public projects using EVMS. Barriers to implementing the tool for the domestic public projects are identified : no PMB (Performance Measurement Baseline) for budget control, management by BOQ(bill of quantity), no systematic planning and control. To eliminate these barriers, an integrated cost and schedule management process model using EVMS is proposed. This model is composed of six sub processes : organizing, scheduling, budget allocating, establishing PMB, managerial analysis, change incorporation.
Design Information Management System Core Development Using Industry Foundation Classes
Lee Keun-hyung ; Chin Sang-yoon ; Kim Jae-jun ;
Korean Journal of Construction Engineering and Management, volume 1, issue 2, 2000, Pages 98~107
Increased use of computers in AEC (Architecture, Engineering and Construction) has expanded the amount of information gained from CAD (Computer Aided Design), PMIS (Project Management Information System), Structural Analysis Program, and Scheduling Program as well as making it more complex. And the productivity of AEC industry is largely dependent on well management and efficient reuse of this information. Accordingly, such trend incited much research and development on ITC (Information Technology in Construction) and CIC (Computer Integrated Construction) to be conducted. In exemplifying such effort, many researchers studied and researched on IFC (Industry Foundation Classes) since its development by IAI (International Alliance for Interoperability) for the product based information sharing. However, in spite of some valuable outputs, these researches are yet in the preliminary stage and deal mainly with conceptual ideas and trial implementations. Research on unveiling the process of the IFC application development, the core of the Design Information management system, and its applicable plan still need be done. Thus, the purpose of this paper is to determine the technologies needed for Design Information management system using IFC, and to present the key roles and the process of the IFC application development and its applicable plan. This system play a role to integrate the architectural information and the structural information into the product model and to group many each product items with various levels and aspects. To make the process model, we defined two activities, 'Product Modeling', 'Application Development', at the initial level. Then we decomposed the Application Development activity into five activities, 'IFC Schema Compile', 'Class Compile', 'Make Project Database Schema', 'Development of Product Frameworker', 'Make Project Database'. These activities are carried out by C++ Compiler, CAD, ObjectStore, ST-Developer, and ST-ObjectStore. Finally, we proposed the applicable process with six stages, '3D Modeling', 'Creation of Product Information', 'Creation and Update of Database', 'Reformation of Model's Structure with Multiple Hierarchies', 'Integration of Drawings and Specifications', and 'Creation of Quantity Information'. The IFCs, including the other classes which are going to be updated and developed newly on the construction, civil/structure, and facility management, will be used by the experts through the internet distribution technologies including CORBA and DCOM.
Building Direction of a Procurement Management Process Model for the SOC projects (Focused on the Airport Facilities)
Kim Ku-Taek ; Kim Sun-Kuk ; Han Choong-Hee ; Park Chan-Sik ;
Korean Journal of Construction Engineering and Management, volume 1, issue 2, 2000, Pages 108~116
The absence of systematic project procedures in the domestic SOC projects has caused many problems. Therefore, it has been raised the needs for the effective project management of the projects which helps the participants to have systematic procedures at each phase of the SOC projects. The purpose of this research is to build the current model of procurement management process for the airport facilities and to derive inherent problems, and the building direction of the effective procurement management is suggested for the future research. The result of this research could be used for delivering the effective SOC projects and for establishing interrelationships between procurement and other phases of the projects for the integrated project management. The procurement process of the Inchon International Airport was investigated and the as-is model was built. Through the analysis of the as-is model, and the questionnaires and the interviews with the participants of the SOC projects, the problems of the current procurement process has been derived.