TY - GEN
T1 - COMPARATIVE LIFE CYCLE ASSESSMENT OF TIMBER-CONCRETE-COMPOSITE WALLS WITH CONCRETE AND CLT-WALL ELEMENTS
AU - Wagner, Anna
AU - Winter, Klara
AU - Nestmann, Anna
AU - Ott, Stephan
AU - Winter, Stefan
AU - Fischer, Oliver
N1 - Publisher Copyright:
© (2023) WORLD CONFERENCE ON TIMBER ENGINEERING 2023 (WCTE 2023) All rights reserved.
PY - 2023
Y1 - 2023
N2 - In this study, Life Cycle Assessment of a new hybrid timber-concrete wall element was conducted. Furthermore, the results for the hybrid wall element were compared with the LCA results of a functional equivalent reinforced concrete wall element and a cross-laminated timber wall element. The thickness of the cross-section of the wall element (1 m2 wall area) varied dependent on the applied load which was equal for every construction method. Modules A1-3, B4 as well as C1-4 and module D were considered. The results were analysed in terms of Global Warming Potential. The evaluation of the results indicated that, from an environmental impact point of view, the concrete-wall element is the least-reasonable option. The CLT wall element is the most suitable for small loads. However, with increasing load, a tipping point was reached. From this point on, the hybrid wall element showed lower environmental burden than the CLT wall element. This is because the thickness of the CLT used for the hybrid wall element and hence, its volume significantly increased compared with the volume of the hybrid wall element. Dependent on the applied load level, the difference in thickness among the cross-sections of the three construction methods can vary significantly.
AB - In this study, Life Cycle Assessment of a new hybrid timber-concrete wall element was conducted. Furthermore, the results for the hybrid wall element were compared with the LCA results of a functional equivalent reinforced concrete wall element and a cross-laminated timber wall element. The thickness of the cross-section of the wall element (1 m2 wall area) varied dependent on the applied load which was equal for every construction method. Modules A1-3, B4 as well as C1-4 and module D were considered. The results were analysed in terms of Global Warming Potential. The evaluation of the results indicated that, from an environmental impact point of view, the concrete-wall element is the least-reasonable option. The CLT wall element is the most suitable for small loads. However, with increasing load, a tipping point was reached. From this point on, the hybrid wall element showed lower environmental burden than the CLT wall element. This is because the thickness of the CLT used for the hybrid wall element and hence, its volume significantly increased compared with the volume of the hybrid wall element. Dependent on the applied load level, the difference in thickness among the cross-sections of the three construction methods can vary significantly.
KW - comparative Life Cycle Assessment
KW - hybrid construction element
KW - timber-concrete wall
UR - http://www.scopus.com/inward/record.url?scp=85171619302&partnerID=8YFLogxK
U2 - 10.52202/069179-0132
DO - 10.52202/069179-0132
M3 - Conference contribution
AN - SCOPUS:85171619302
T3 - 13th World Conference on Timber Engineering, WCTE 2023
SP - 967
EP - 975
BT - 13th World Conference on Timber Engineering, WCTE 2023
A2 - Nyrud, Anders Q.
A2 - Malo, Kjell Arne
A2 - Nore, Kristine
A2 - Alsen, Knut Werner Lindeberg
A2 - Tulebekova, Saule
A2 - Staehr, Efthymia Ratsou
A2 - Bergh, Gabrielle
A2 - Wuyts, Wendy
PB - World Conference on Timber Engineering (WCTE)
T2 - 13th World Conference on Timber Engineering: Timber for a Livable Future, WCTE 2023
Y2 - 19 June 2023 through 22 June 2023
ER -
