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Study on a LEED WB-LCA (Whole Building Life Cycle Assessment)

A Whole Building Life Cycle Assessment (WB-LCA) was conducted for a commercial office space building in India using the LEED v4 tool of the One Click LCA software. The building had 11 floors above grade and 2 basements, with an area of 35820 m2. The building, referred to as the "proposed building," was compared to a similar "baseline building" in terms of six impact categories.

  1. Global Warming

  2. Ozone Depletion

  3. Acidification

  4. Eutrophication

  5. Tropospheric ozone

  6. Nonrenewable energy



The proposed building was found to have a 10% reduction in three of the impact categories: Global Warming Potential, Tropospheric Ozone Formation, and Non-Renewable Energy Depletion.

Baseline Building Result:-

Proposed Building Result:-



The use of ready-mix concrete with 25% fly ash content and AAC blocks with 65% fly ash content in the proposed building was identified as the factor leading to this reduction. The service life of both the proposed and baseline building was considered to be 60 years, and the same life-cycle assessment software and data sets compliant with ISO 14044 were used for the assessment.

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