About: Porosity and Specific Surface Area of Roman Cement Pastes.

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About: Porosity and Specific Surface Area of Roman Cement Pastes. 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 hydration process of the natural cements studied involves two principle reactions.1) Formation of crystalline AFm and AFt phases, which dominates the initial stage of hydration during which the pastes attain their initial strength values. 2) Hydration of belite resulting in the formation of amorphous calcium silicate hydrates - the C-S-H gel - which dominates the late stage of hydration and accounts for the materials final high strength and excellent durability which makes stucco hard and durable. However, when used for on-site applications, due to the short or improper curing, application of the water-repellent treatment, the hydration could be restricted. Different hydration mechanism was found for Rosednale cement which differ in little AFm content which cause slow setting, lower early strength. Therefore, the hydration mechanism is predominantely based on alfa´- belite. The role of the MgO in the hydration process must be further elucidated. The hydration process of the natural cements studied involves two principle reactions.1) Formation of crystalline AFm and AFt phases, which dominates the initial stage of hydration during which the pastes attain their initial strength values. 2) Hydration of belite resulting in the formation of amorphous calcium silicate hydrates - the C-S-H gel - which dominates the late stage of hydration and accounts for the materials final high strength and excellent durability which makes stucco hard and durable. However, when used for on-site applications, due to the short or improper curing, application of the water-repellent treatment, the hydration could be restricted. Different hydration mechanism was found for Rosednale cement which differ in little AFm content which cause slow setting, lower early strength. Therefore, the hydration mechanism is predominantely based on alfa´- belite. The role of the MgO in the hydration process must be further elucidated. (en)
Title	Porosity and Specific Surface Area of Roman Cement Pastes. Porosity and Specific Surface Area of Roman Cement Pastes. (en)
skos:prefLabel	Porosity and Specific Surface Area of Roman Cement Pastes. Porosity and Specific Surface Area of Roman Cement Pastes. (en)
skos:notation	RIV/00216275:25110/09:00009442!RIV10-MSM-25110___
http://linked.open...avai/riv/aktivita	V
http://linked.open...avai/riv/aktivity	V
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Tišlová, Renata
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	Univerzita Pardubice / Fakulta restaurování
http://linked.open...dnocenehoVysledku	334300
http://linked.open...ai/riv/idVysledku	RIV/00216275:25110/09:00009442
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	mercury porosimetry; pore size distribution; surface area; cement paste; roman cement (en)
http://linked.open.../riv/klicoveSlovo	surface area cement paste roman cement mercury porosimetry pore size distribution
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[015BF1230543]
http://linked.open...i/riv/nazevZdroje	Cement and Concrete Research
http://linked.open...in/vavai/riv/obor	AL
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	39
http://linked.open...iv/tvurceVysledku	Tišlová, Renata
issn	0008-8846
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	25110

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