About: Critical Aspects of Nano-Indentation Technique in Application to Hardened Cement Paste

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Several open questions related to the experimental protocol and processing of data acquired by the nano-indentation technique are investigated. The volume fractions of mechanically different phases obtained from statistical analysis are shown to be different from those obtained by back-scattered electron image analysis and X-ray diffraction method on the same paste. Judging from transmission electron microscope images, the representative volume element of low-density calcium-silicate hydrates can be considered to be around 500 nm, whereas for high-density C-S-H it is about 100 nm. This raises the question how the appropriate penetration depth for NI experiments should be selected. Changing the maximum load from 1 mN to 5 mN, the effect of penetration depth on the experimental results is studied. As an alternative, a %22manual%22 indentation method is proposed. Several open questions related to the experimental protocol and processing of data acquired by the nano-indentation technique are investigated. The volume fractions of mechanically different phases obtained from statistical analysis are shown to be different from those obtained by back-scattered electron image analysis and X-ray diffraction method on the same paste. Judging from transmission electron microscope images, the representative volume element of low-density calcium-silicate hydrates can be considered to be around 500 nm, whereas for high-density C-S-H it is about 100 nm. This raises the question how the appropriate penetration depth for NI experiments should be selected. Changing the maximum load from 1 mN to 5 mN, the effect of penetration depth on the experimental results is studied. As an alternative, a %22manual%22 indentation method is proposed. (en)
Title	Critical Aspects of Nano-Indentation Technique in Application to Hardened Cement Paste Critical Aspects of Nano-Indentation Technique in Application to Hardened Cement Paste (en)
skos:prefLabel	Critical Aspects of Nano-Indentation Technique in Application to Hardened Cement Paste Critical Aspects of Nano-Indentation Technique in Application to Hardened Cement Paste (en)
skos:notation	RIV/68407700:21110/11:00171624!RIV12-MSM-21110___
http://linked.open...avai/predkladatel	Fakulta stavební
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6840770003)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Kopecký, Lubomír Jirásek, Milan Davydov, Denis
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	192263
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/11:00171624
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	calcium-silicate hydrate; elastic modulus; micromechanics; mechanical properties; statistical nanoindentation (en)
http://linked.open.../riv/klicoveSlovo	calcium-silicate hydrate elastic modulus mechanical properties micromechanics statistical nanoindentation
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[811E1CFDF2E6]
http://linked.open...i/riv/nazevZdroje	Cement and Concrete Research
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	41
http://linked.open...iv/tvurceVysledku	Davydov, Denis Jirásek, Milan Kopecký, Lubomír
http://linked.open...ain/vavai/riv/wos	000285900500003
http://linked.open...n/vavai/riv/zamer	Rozvoj algoritmů počítačových simulací a jejich aplikace v inženýrství
issn	0008-8846
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.cemconres.2010.09.001
http://localhost/t...ganizacniJednotka	21110
is http://linked.open...avai/riv/vysledek of	Critical Aspects of Nano-Indentation Technique in Application to Hardened Cement Paste Critical Aspects of Nano-Indentation Technique in Application to Hardened Cement Paste

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