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Controlling physical properties of cementitious matrixes by nanomaterials p1
Department of Civil and Structural Engineering, Aalto University, School of Engineering, Espoo.ORCID iD: 0000-0001-6287-2240
2010 (English)In: Advanced Materials Research, ISSN 1022-6680, E-ISSN 1662-8985, Vol. 123-125, p. 639-642Article in journal (Refereed) Published
Abstract [en]

The majority of concrete used nowadays is based on matrixes formed by hydrating Portland cement. Latest developments in nanosciences introduced a new generation of nano-sized materials possessing often remarkable mechanical and physical properties. These materials can be also used to improve or alter the characteristics of the binder matrixes based on Portland cement. The results showed that mechanical properties such as compressive and flexural strength can be increased by up to 50% by addition of for example 0.23wt% of carbon nanotubes. Carbon nanotubes and carbon nanofibres and/or nanosilica appeared to improve also the frost resistance. Other properties, such as autogenous shrinkage decreased significantly after addition of carbon nanofibres. Nanosilica enabled an immense densification of the hydrated binder matrix, which in turn improved for instance the durability and mechanical properties. © (2010) Trans Tech Publications.

Place, publisher, year, edition, pages
2010. Vol. 123-125, p. 639-642
Keyword [sv]
Carbon nanofibers, Carbon nanotubes, Cement, Durability, Mechanical properties, Nanosilica
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-30471DOI: 10.4028/www.scientific.net/AMR.123-125.639Scopus ID: 78650722507Local ID: 44c56b79-114b-4761-8fa3-6d5395a56d80OAI: oai:DiVA.org:ltu-30471DiVA, id: diva2:1003698
Conference
International Conference on Multi-Functional Materials and Structures : MFMS 2010 14/09/2010 - 18/09/2010
Note
Upprättat; 2010; 20160222 (andcwi); Konferensartikel i tidskriftAvailable from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-30Bibliographically approved

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