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Reactive powder concrete for facade elements: A sustainable approach
RISE, SP – Sveriges Tekniska Forskningsinstitut.
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
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2016 (English)In: Journal of Facade Design and Engineering, Vol. 4, no 1-2, 53-66 p.Article in journal (Refereed) Published
Abstract [en]

Reactive powder concrete (RPC) is a fairly novel material with extraordinary strength and durability properties. Due to these properties, it is increasingly being utilized for external fa¸cade cladding thus enabling a considerable reduction in the thickness of concrete elements. Commercial RPC formulations on the market are usually expensive and less sustainable due to high cement clinker contents. In this study, improved RPC formulations with higher amounts of supplementary cementitious materials (SCMs) were developed. The formulations were combined with different types of reinforcements ranging from steel fibres to fibre textile grids primarily to enhance the ductility and tensile strength of the composite material. The results showed that even with clinker replacement levels of up to ca. 40% of the total binder amount, a satisfactory mechanical performance of the RPC mixes could still be achieved. A fairly steep strength gain rendered heat treatment unnecessary. The materials displayed good flow properties and a reasonably short initial setting time. The incorporation of carbon textile fibre grids proved to be highly effective in improving the post cracking behaviour of the RPC. The results validated a more sustainable approach for RPC applied to thin fa¸cade elements. 

Place, publisher, year, edition, pages
2016. Vol. 4, no 1-2, 53-66 p.
Keyword [en]
Facade, reactive powder concrete, textile reinforcement, durability, strength
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27932DOI: 10.3233/FDE-160051OAI: oai:DiVA.org:ri-27932DiVA: diva2:1067413
Available from: 2017-01-20 Created: 2017-01-20 Last updated: 2017-01-20Bibliographically approved

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SP – Sveriges Tekniska ForskningsinstitutCBI Betonginstitutet AB
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