scholarly journals Life Cycle Cost Analysis and Life Cycle Assessment for Road Pavement Materials and Reconstruction Technologies

2020 ◽  
Vol 15 (5) ◽  
pp. 118-135
Author(s):  
Arturs Riekstins ◽  
Viktors Haritonovs ◽  
Verners Straupe

With limited funding and a desire to reduce environmental impact, there is a lot of pressure on road Authorities to develop decision making policy to manage better, build and maintain the road network sustainability. One of the solutions is to use various life cycle analyses. Numerous tools are available for different analyses, but they usually evaluate the construction from one perspective (economical, environmental, or social). Therefore, it was decided to develop a tool, which combines economic (Life Cycle Cost Analysis) and environmental (Life Cycle Assessment) analyses. The given study presents the methodology of the self-developed calculation program, which compare full-depth road constructions. Paper also shows shortcomings when calculation does not include all life cycle processes. In this study, five different road pavement constructions and reconstruction plans were compared. The difference between these pavements was in the layer thickness, recycled asphalt content in asphalt layers and the use of cement or fly ash in the road base layers. The results showed that the full depth reclamation technology in comparison to the full-depth removal and replacement reduce emissions by 60% and costs by 50%.

2016 ◽  
Vol 8 (7) ◽  
pp. 662 ◽  
Author(s):  
Aysun Özkan ◽  
Zerrin Günkaya ◽  
Gülden Tok ◽  
Levent Karacasulu ◽  
Melike Metesoy ◽  
...  

2021 ◽  
Vol 13 (14) ◽  
pp. 7831
Author(s):  
Shaobo Liang ◽  
Hongmei Gu ◽  
Richard Bergman

Global construction industry has a huge influence on world primary energy consumption, spending, and greenhouse gas (GHGs) emissions. To better understand these factors for mass timber construction, this work quantified the life cycle environmental and economic performances of a high-rise mass timber building in U.S. Pacific Northwest region through the use of life-cycle assessment (LCA) and life-cycle cost analysis (LCCA). Using the TRACI impact category method, the cradle-to-grave LCA results showed better environmental performances for the mass timber building relative to conventional concrete building, with 3153 kg CO2-eq per m2 floor area compared to 3203 CO2-eq per m2 floor area, respectively. Over 90% of GHGs emissions occur at the operational stage with a 60-year study period. The end-of-life recycling of mass timber could provide carbon offset of 364 kg CO2-eq per m2 floor that lowers the GHG emissions of the mass timber building to a total 12% lower GHGs emissions than concrete building. The LCCA results showed that mass timber building had total life cycle cost of $3976 per m2 floor area that was 9.6% higher than concrete building, driven mainly by upfront construction costs related to the mass timber material. Uncertainty analysis of mass timber product pricing provided a pathway for builders to make mass timber buildings cost competitive. The integration of LCA and LCCA on mass timber building study can contribute more information to the decision makers such as building developers and policymakers.


Author(s):  
Helen E. Muga ◽  
Ken D. Thomas

The primary focus of this chapter is on the theory and concepts of sustainability and why they are important to innovation and vice-versa. Key reductionist approaches to assessing sustainability such life cycle assessment (LCA), life cycle cost analysis (LCCA), and sustainability indicators are discussed in detail and applied to an engineering infrastructure scenario. The integrated sustainability methods of life cycle assessment and life cycle cost analysis enable a business to assess alternative products or processes at the planning and design stages. They may also be used during the production stages to assess whether a business needs to use a different raw material to make their products. The role of management, social network analysis, and mental models of individuals in the diffusion and adoption of innovations are also explored.


2013 ◽  
pp. 185-200
Author(s):  
Helen E. Muga ◽  
Ken D. Thomas

The primary focus of this chapter is on the theory and concepts of sustainability and why they are important to innovation and vice-versa. Key reductionist approaches to assessing sustainability such life cycle assessment (LCA), life cycle cost analysis (LCCA), and sustainability indicators are discussed in detail and applied to an engineering infrastructure scenario. The integrated sustainability methods of life cycle assessment and life cycle cost analysis enable a business to assess alternative products or processes at the planning and design stages. They may also be used during the production stages to assess whether a business needs to use a different raw material to make their products. The role of management, social network analysis, and mental models of individuals in the diffusion and adoption of innovations are also explored.


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