Porosity and Specific Surface Area of Roman Cement Pastes.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25110%2F09%3A00009442" target="_blank" >RIV/00216275:25110/09:00009442 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Porosity and Specific Surface Area of Roman Cement Pastes.

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Porosity and Specific Surface Area of Roman Cement Pastes.

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

AL - Umění, architektura, kulturní dědictví

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Cement and Concrete Research

ISSN

0008-8846

e-ISSN

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Svazek periodika

39

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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