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Sustainability 2016, 8(8), 752; doi:10.3390/su8080752

Life Cycle CO2 Assessment by Block Type Changes of Apartment Housing

1
Korea Institute of Civil Engineering and Building Technology, 283, Goyangdae-ro, Goyang-si, Gyeonggi-do 10223, Korea
2
School of Architecture & Architectural Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si, Gyeonggi-do 15588, Korea
3
Department of Architectural Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si, Gyeonggi-do 15588, Korea
*
Author to whom correspondence should be addressed.
Academic Editors: Vivian W. Y. Tam and Marc A. Rosen
Received: 25 March 2016 / Revised: 25 July 2016 / Accepted: 29 July 2016 / Published: 4 August 2016
(This article belongs to the Special Issue Life Cycle Assessment on Green Building Implementation)
View Full-Text   |   Download PDF [3690 KB, uploaded 4 August 2016]   |  

Abstract

The block type and structural systems in buildings affect the amount of building materials required as well as the CO2 emissions that occur throughout the building life cycle (LCCO2). The purpose of this study was to assess the life cycle CO2 emissions when an apartment housing with ‘flat-type’ blocks (the reference case) was replaced with more sustainable ‘T-type’ blocks with fewer CO2 emissions (the alternative case) maintaining the same total floor area. The quantity of building materials used and building energy simulations were analyzed for each block type using building information modeling techniques, and improvements in LCCO2 emission were calculated by considering high-strength concrete alternatives. By changing the bearing wall system of the ‘flat-type’ block to the ‘column and beam’ system of the ‘T-type’ block, LCCO2 emissions of the alternative case were 4299 kg-CO2/m2, of which 26% was at the construction stage, 73% was as the operational stage and 1% was at the dismantling and disposal stage. These total LCCO2 emissions were 30% less than the reference case. View Full-Text
Keywords: life cycle CO2; block type; building form; apartment housing life cycle CO2; block type; building form; apartment housing
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Baek, C.; Tae, S.; Kim, R.; Shin, S. Life Cycle CO2 Assessment by Block Type Changes of Apartment Housing. Sustainability 2016, 8, 752.

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