Perforierte und vollflächige Fassadenplatten aus carbonbewehrtem Beton/Perforated and full-surface façade panels made of carbon-reinforced concrete

Heid, Ann‐Christine von der; Grebe, Reiner

doi:10.37544/0005-6650-2020-06-54

Cited by 5 publications

(1 citation statement)

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“…Although some applications of CRC in façade construction have been recorded [51][52][53][54] and the first general approvals for components exist [55], this material is not very widespread in the German market. The German association Carbon Concrete Composite (C3) has presented the market trends of products in the carbon and textile construction sector [38].…”

Section: Lca Case Study: Façade Elementmentioning

confidence: 99%

Comparative Cradle-to-Grave Carbon Footprint of a CFRP-Grid Reinforced Concrete Façade Panel

et al. 2023

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Due to climate change and current efforts to reduce emissions in the construction sector, this study evaluates and discusses the results of a comparative cradle-to-grave Life Cycle Assessment (LCA), with a main focus on Global Warming Potential for functionally equivalent carbon-reinforced concrete (CRC) and steel-reinforced concrete (SRC) façade panels for the first time. The novelty of this study is the focus on construction waste and, in particular, the worst-case application of non-recycled construction waste. The use of CRC requires a lower concrete thickness than SRC because the carbon fiber reinforcement does not corrode, in contrast to steel reinforcement. Façade panels of the same geometrical dimensions and structural performance were defined as functional units (FU). Assuming an End-of-Life (EoL) scenario of 50% landfill and 50% recycling, the Global Warming Potential (GWP, given in CO2 equivalent (CO2e)) of the CRC façade (411–496 kg CO2e) is shown to perform better than or equal to the SRC façade (492 kg CO2e). Changing the assumption of CRC to a worst-case scenario, going fully to landfill and not being recycled (single life cycle), turns the GWP results in favor of the SRC façade. Assuming a 50-year service life for the SRC façade panel and relativizing the emissions to the years, the more durable CRC façade performs much better. Finally, depending on the system boundary, the assumed EoL and lifetime, CRC can represent a lower-emission alternative to a functionally equivalent component made of SRC. The most important and “novel” result in this study, which also leads to future research opportunities, is that delicate adjustments (especially concerning EoL scenarios and expected service life) can lead to completely different recommendations for decision-makers. Only by combining the knowledge of LCA experts, structural engineers, and builders optimal decisions can be made regarding sustainable materials and building components.

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Section: Lca Case Study: Façade Elementmentioning

confidence: 99%

Comparative Cradle-to-Grave Carbon Footprint of a CFRP-Grid Reinforced Concrete Façade Panel

et al. 2023

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Nachweise im Grenzzustand der Tragfähigkeit

Bergmann¹,

Bielak²,

Bosbach³

et al. 2023

Handbuch Carbonbeton

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Zwei Praxisbeispiele zur Querkrafttragfähigkeit von Brückenplatten aus Textilbeton

2020

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Textilbewehrter Beton (TRC) bei Neubauteilen kombiniert Hochleistungstextilien mit einer neuen Generation hochfester Betone. Aufgrund der Korrosionsbeständigkeit der nichtmetallischen Bewehrung ist der Einsatz von TRC für Außenbauteile insbesondere bei Frost‐Tausalzbelastung vielversprechend. So können die Betondeckung und das Eigengewicht reduziert werden und die Herstellung schlanker Bauelemente sowie dünner Platten ohne zusätzliche Abdichtung oder Schutzbeläge ist möglich. Bei der Planung mehrerer Brücken im Remstal und in Ottenhöfen wurden theoretische Modelle und Erfahrungen aus Forschungsprojekten genutzt, um TRC‐Platten ohne Querkraftbewehrung einzusetzen. Begleitend zur Bauausführung wurden experimentelle Untersuchungen zur Querkrafttragfähigkeit durchgeführt, um die Qualität der Ausführung zu überprüfen und die Annahmen zu validieren. Der vorliegende Beitrag zeigt die Anwendungspotenziale sowie Herausforderungen für den Einsatz von TRC in Ingenieurbauwerken auf.

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Perforierte und vollflächige Fassadenplatten aus carbonbewehrtem Beton/Perforated and full-surface façade panels made of carbon-reinforced concrete

Cited by 5 publications

References 0 publications

Comparative Cradle-to-Grave Carbon Footprint of a CFRP-Grid Reinforced Concrete Façade Panel

Comparative Cradle-to-Grave Carbon Footprint of a CFRP-Grid Reinforced Concrete Façade Panel

Nachweise im Grenzzustand der Tragfähigkeit

Zwei Praxisbeispiele zur Querkrafttragfähigkeit von Brückenplatten aus Textilbeton

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