Abstract
In a construction project, selection of an appropriate method in the planning/design stage is very important for ensuring effective project implementation and success. Many companies have adopted the life cycle cost (LCC) method, one of the methods for analyzing economic efficiency, for appropriate decision-making in the basic/detailed design stage by estimating overall costs and expenses generated over the entire project. This paper presents an LCC method for calculating the LCC of CO2 (LCCO2), based on materials committed during the lifecycle of a structure for each roof waterproofing method and adding this cost to the LCC for comparative analysis. Thus, this technique presents the LCC that includes the cost of CO2 emission. The results show that in terms of initial construction cost, asphalt waterproofing had the highest CO2 emission cost, followed by sheet waterproofing. LCCO2 did not greatly influence the initial construction cost and maintenance cost, as it is relatively smaller than the LCC. However, when the number of durable years was changed, the LCC showed some changes.
Highlights
Construction projects have several standard stages, which the Project Management Institute categorizes as follows: initiation, planning, execution, and close [1]
This study proposes life cycle cost (LCC) analysis for integrating the economic aspect with the environmental aspect by integrating the LCC of CO2 (LCCO2) of each waterproofing method into the LCC
The following conclusions are drawn about the major drivers of this research: (1) In terms of initial capital cost, asphalt waterproofing has the highest CO2 emission cost, followed by membrane and sheet waterproofing
Summary
Construction projects have several standard stages, which the Project Management Institute categorizes as follows: initiation, planning, execution, and close [1]. These processes inevitably generate extra costs at every stage; a rigorous estimation procedure is necessary. Reasonable decisions are made by analyzing the economics of a project, using objectives and quantitative methods. This is done to ensure compliance with design regulations for safety, functionality, durability, and potential functions of the building by developing and adopting life cycle cost (LCC) and value engineering (VE) in their procedure. Project managers attempt to minimize extra expenses while meeting the structural and functional requirements of a project
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