A novel framework towards the design of more sustainable concrete infrastructure

作者：Muigai R^*; Alexander M; Moyo P

来源：Materials and Structures, 2016, 49(4): 1127-1141.

DOI：10.1617/s11527-015-0563-0

• Reinforced concrete
• Sustainability
• Design framework
• Materials
• Structural design

This study presents a novel framework for the design of reinforced concrete (RC) structures which aims at ensuring that future RC structures have the lowest possible carbon footprint, energy use and impact on the environment. The key focus of the study is on RC structures where there is often a lack of grasp of materials aspects, and environmental aspects of construction. In the proposed framework, a set of quantifiable design parameters and variables (binder type, concrete grade, diffusivity, concrete cover depth, area of steel in the structural component) are selected with respect to a set of performance measures which cover the functionality and availability of the structure to the user during its service life. The outputs generated from the framework are optimised material types and properties which not only meet the design performance requirements but also lead to minimised life-cycle environmental impacts. A RC beam is used to demonstrate the proposed design methodology. The application of the framework for design in the material specifications of the RC beam showed a reduced volume of materials in construction compared to the current materials and structures design practice.

• 出版日期2016-4