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The concept of life cycle analysis evolved since the concept was initially considered in the 1970s and 1980s, [3] when life cycle studies focused on the quantifying the energy and raw resources used by a building, and the load on the sewerage and sanitation systems imposed by waste generated in the building, during the operational life of the structure.
Life cycle energy analysis (LCEA) is an approach in which all energy inputs to a product are accounted for, not only direct energy inputs during manufacture, but also all energy inputs needed to produce components, materials and services needed for the manufacturing process. [110] With LCEA, the total life cycle energy input is established. [111]
ISO 15686 is the in development ISO standard dealing with service life planning.It is a decision process which addresses the development of the service life of a building component, building or other constructed work like a bridge or tunnel.
It quantifies the environmental impacts of systems and materials to support the decisions needed to produce sustainable buildings, using information about sustainable materials that are stored in the database and interoperability between design and analysis tools. Such data can be useful for building life cycle assessments.
The C2C concept ignores the use phase of a product. According to variants of life-cycle assessment (see: Life-cycle assessment § Variants) the entire life cycle of a product or service has to be evaluated, not only the material itself. For many goods e.g. in transport, the use phase has the most influence on the environmental footprint.
Life-cycle assessment; Holistic sustainability (environment, economy and society) Performance-based approach. It also takes into consideration the economic aspects and as such, also assesses the associated Life Cycle Costs and Value Creation of the building. [1]
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