scholarly journals Beneficial Use of Carbon Dioxide in Precast Concrete Production

2014 ◽  
Author(s):  
Yixin Shao
Keyword(s):  
Carbon Dioxide ◽  
Precast Concrete ◽  
Beneficial Use ◽  
Concrete Production

Optimizing profit and logistics for precast concrete production

2017 ◽  
Vol 44 (6) ◽  
pp. 393-406 ◽  
Author(s):  
Jieh-Haur Chen ◽  
Shangyao Yan ◽  
Hsing-Wei Tai ◽  
Chao-Yu Chang
Keyword(s):  
Decision Making ◽  
Precast Concrete ◽  
Proposed Model ◽  
Concrete Production ◽  
Human Decision ◽  
National Production ◽  
And Performance ◽  
Corporate Profits ◽  
The Mathematical Model ◽  
Depth Interviews

This study serves as a practical model for optimizing production planning, allocation of precast component storage, and transportation sites as well as for making timely adjustments for contracted projects. To ensure that the structure of the research model is reasonable and matches actual applications, the study uses a field survey to directly observe the largest precast concrete plants in Taiwan for a period of 6 months, followed by in-depth interviews with experts involved with the planning, design, installation, and manufacturing for precast projects. The mathematical model is then established and evaluated using the data containing over 90% of national production in Taiwan. The results show that the tested corporate profits increase by an impressive 38.4% and performance is significantly increased by 97.75%. The proposed model can not only make up for oversights in human decision-making but improve the decision-making process boosting corporate competitiveness.

scholarly journals Analysis of CO2 Emission Reduction Effect of On-Site Production Precast Concrete Member according to Factory Production Environment

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Youngju Na ◽  
Bumjin Han ◽  
Seunghyun Son
Keyword(s):  
Carbon Dioxide ◽  
Emission Reduction ◽  
Co2 Emission ◽  
Precast Concrete ◽  
Plant Production ◽  
Production Environment ◽  
Co2 Emission Reduction ◽  
Factory Production ◽  
Reduction Effect

Precast concrete (PC) method of construction is preferred for excellence in the reduction of construction period, lightweight, and durability and for PC member to be mostly transported to a site after its production in the in-plant production because the in situ production of the PC member is negatively perceived because of the limitation of space or production process being complex and difficult. However, if the PC member is produced on site and installed, it is possible to reduce the carbon dioxide emissions that are generated during shipping and loading and unloading, which are indirectly required for in-plant production. Carbon dioxide emission reduction effect due to the difference between the in situ production and in-plant production process of the PC member was confirmed by the existing studies, but the study of the carbon dioxide reduction effect according to various production environments of the in-plant production has not been performed. Therefore, the purpose of this study is to analyze the CO2 emission reduction effect of the PC member produced in site according to the in-plant production environment. As a result, it was found that when PC members were produced on site, there was an effect of reducing CO2 emissions by an average of 25.64% compared to factory production. In future, the results of this study will be used as basic data for establishing a CO2 emission reduction plan at construction sites.

Sign in / Sign up

Export Citation Format

Share Document