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Properties of high ...
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Cwirzen, A.Laboratory of Building Materials Technology, Faculty of Engineering and Architecture, Helsinki University of Technology, Espoo
(författare)
Properties of high yield synthesised carbon nano fibres/portland cement composite
- Artikel/kapitelEngelska2009
Förlag, utgivningsår, omfång ...
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Thomas Telford Ltd.2009
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:ltu-4189
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https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-4189URI
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https://doi.org/10.1680/adcr.8.00021DOI
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Språk:engelska
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Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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Upprättat; 2009; 20160222 (andcwi)
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The compressive strength and electrical resistivity of hardened pastes produced either from nanomodified Portland sulfate-resistant cement (CHH) or a mixture of nanomodified and pristine sulfate-resistant cements were determined. The nanomodification included grow carbon nanotubes (CNTs) and carbon nanofibres (CNFs) on the cement particles. Pastes having a water-to-binder ratio of 0-5 were produced. The test results revealed that partial replacement of sulfate-resistant cement by CHH cement decreased the electrical resistivity of the 28 day old specimens but worsened the mechanical properties. The lower compressive strength was attributed to a lower degree of hydration of the CHH cement. The addition of a mixture of surfactants enabled the production of specimens consisting entirely of CHH cement. The hardened material obtained was characterised by a nearly doubled compressive strength in comparison with the reference specimens made from pristine sulfate-resistant cement. This was attributed to a high degree of hydration as well as reinforcing action of the CNTs and CNFs. The electrical resistivity was lowered by one order of magnitude classifying this material as a semiconductor.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Habermehl-Cwirzen, K.Laboratory of Building Materials Technology, Faculty of Engineering and Architecture, Helsinki University of Technology, Espoo(Swepub:ltu)karhab
(författare)
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Shandakov, D.Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo
(författare)
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Nasibulina, L. I.Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo
(författare)
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Nasibulin, A. G.Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo
(författare)
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Mudimela, P. R.Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo
(författare)
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Kauppinen, E. I.Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo
(författare)
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Penttala, V.Laboratory of Building Materials Technology, Faculty of Engineering and Architecture, Helsinki University of Technology, Espoo
(författare)
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Laboratory of Building Materials Technology, Faculty of Engineering and Architecture, Helsinki University of Technology, EspooDepartment of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Advances in Cement Research: Thomas Telford Ltd.21:4, s. 141-1460951-71971751-7605
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