Der Klimawandel erfordert ein Umdenken in der Bauindustrie. doch bislang konzentriert sich die Debatte vor allem auf die Energieeffizienz von Gebäuden. Dabei sind auch der Ressourcenverbrauch, der CO.-Fußabdruck und die Recyclingfähigkeit entscheidende Faktoren für nachhaltiges Bauen. Mit betoShell zeigt HERING Architectural Concrete, wie moderne Fassadensysteme sowohl ökologische als auch ästhetische Anforderungen erfüllen können. Doch wie gelingt der Spagat zwischen Leichtbau, Langlebigkeit und Recyclingfähigkeit. und welche Rolle spielen dabei Carbon- und Glasfaserbewehrungen?
Slim, textile-reinforced concrete block slabs in a sustainability comparison
Climate change requires a rethink in the construction industry but so far the debate has focussed primarily on the energy efficiency of buildings. Resource consumption, carbon footprint and recyclability are also decisive factors for sustainable construction. With betoShell, HERING Architectural Concrete shows how modern façade systems can fulfil both ecological and aesthetic requirements. But how can the balancing act between lightweight construction, durability and recyclability be achieved and what role do carbon and glass fibre reinforcements play in this? Using the example of slender concrete façades, the contribution shows what influence the life cycle phases of a concrete product have on sustainable, future-proof concrete construction. Material selection (substitutes for Portland cement and non-metallic reinforcement) and supplier selection (short transport distance) are decisive for concrete, as this is where the largest proportion of „grey emissions“ is caused. In the operational phase of buildings, concrete elements generally have no major influence on CO2 emissions; they even absorb small amounts of CO2 from the air through carbonation. However, the recyclability of innovative construction methods such as textile and carbon concrete must be considered from the outset.