Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/43746
Title: DURABILITY DESIGN OF TYPICAL DFD (DESIGN FOR DISASSEMBLY) COMPONENTS FOR A TROPICAL ENVIRONMENT
Authors: KEIYU KAWAAI
Keywords: DfD, durability, tropical environment, service life design, NDT
Issue Date: 23-May-2013
Source: KEIYU KAWAAI (2013-05-23). DURABILITY DESIGN OF TYPICAL DFD (DESIGN FOR DISASSEMBLY) COMPONENTS FOR A TROPICAL ENVIRONMENT. ScholarBank@NUS Repository.
Abstract: DfD (Design for disassembly) is a building design concept which allows for the easy recovery of structural members for subsequent service when a building is dismantled after several years of initial service. The way to implement the concept in RC building through durability enhancement is crucial because long-term durability of DfD components and materials is more uncertain as the components may go through two or more phases of service life. This study examined the durability design of typical DfD components when subjected to carbonation and carbonation-induced deterioration under a tropical environment. In addition, durability enhancement which takes into account materials selection, execution and maintainability was explored. It was found that durability enhancement through appropriate material selection, curing duration and provision of adequate cover depth is an effective strategy for the DfD design taking into consideration the presence of vertical interfaces formed between the precast components and the cast-in-situ materials.
URI: http://scholarbank.nus.edu.sg/handle/10635/43746
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