About: ETTRINGITE AND THAUMASITE FORMATION CONDITIONS IN CONCRETE STRUCTURES

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About: ETTRINGITE AND THAUMASITE FORMATION CONDITIONS IN CONCRETE STRUCTURES Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The significance of specific analytical study of cementitious materials (matrix and filling material) becomes very interesting and important during several last years. This study is focused on mineral composition of matrix in concrete, and in particular on petrographic character of aggregates. Aggregates of these samples can be divided into different groups, which mean that aggregates were formed in different geological environments or they were artificially prepared. In several samples was verified that ASR reaction precedes sulphate reaction. Because phthanites (Paleozoic silica rock) and porcelanites were observed in aggregates it had to be verified formation of ASR reaction products. Results were obtained from study of highway concrete, colcrete, expanded-clay concrete and reinforced concrete from a historical bridge structure. In samples of highway and reinforced concrete thaumasite and ettringite were observed, while in lightweight concrete only ettringite occurred. The significance of specific analytical study of cementitious materials (matrix and filling material) becomes very interesting and important during several last years. This study is focused on mineral composition of matrix in concrete, and in particular on petrographic character of aggregates. Aggregates of these samples can be divided into different groups, which mean that aggregates were formed in different geological environments or they were artificially prepared. In several samples was verified that ASR reaction precedes sulphate reaction. Because phthanites (Paleozoic silica rock) and porcelanites were observed in aggregates it had to be verified formation of ASR reaction products. Results were obtained from study of highway concrete, colcrete, expanded-clay concrete and reinforced concrete from a historical bridge structure. In samples of highway and reinforced concrete thaumasite and ettringite were observed, while in lightweight concrete only ettringite occurred. (en)
Title	ETTRINGITE AND THAUMASITE FORMATION CONDITIONS IN CONCRETE STRUCTURES ETTRINGITE AND THAUMASITE FORMATION CONDITIONS IN CONCRETE STRUCTURES (en)
skos:prefLabel	ETTRINGITE AND THAUMASITE FORMATION CONDITIONS IN CONCRETE STRUCTURES ETTRINGITE AND THAUMASITE FORMATION CONDITIONS IN CONCRETE STRUCTURES (en)
skos:notation	RIV/00216224:14310/07:00024839!RIV10-GA0-14310___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA103/00/0607), P(GA103/02/0990)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Gregerová, Miroslava
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	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	420566
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/07:00024839
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Thaumasite; ettringite; concrete; degradation; petrography; aggregate (en)
http://linked.open.../riv/klicoveSlovo	degradation aggregate concrete ettringite petrography Thaumasite
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[12597036B777]
http://linked.open...i/riv/nazevZdroje	Acta Geologica Universitatis Comenianae
http://linked.open...in/vavai/riv/obor	DB
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Salt transport in the porous structure of concrete and conditions of efflorescence formation on its surface Research into non-force effects and aggressive environment affecting the ageing of historical structures with special emphasis on Charles bridge in Prague
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	1/2007
http://linked.open...iv/tvurceVysledku	Gregerová, Miroslava
issn	1335-2830
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	14310

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