K-Value Determination Options for Active Admixtures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F22%3APU147051" target="_blank" >RIV/00216305:26110/22:PU147051 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scientific.net/SSP.336.193" target="_blank" >https://www.scientific.net/SSP.336.193</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/p-5grkje" target="_blank" >10.4028/p-5grkje</a>

Jazyk výsledku

angličtina

Název v původním jazyce

K-Value Determination Options for Active Admixtures

Popis výsledku v původním jazyce

Concrete admixtures have been successfully used in cementitious composites (especially in concrete) for many years. Recently, however, their importance and usefulness has been increasing, especially with regard to the reduction of the clinker factor in concrete production. In the application of active admixtures in concrete, as a partial replacement of cement, k-value concepts are used in the design of concrete formulation and the calculation of the water coefficient. However, it is essentially a matter of determining the amount of total countable binder, i.e. the cement and part of the active admixture used to calculate the water coefficient. However, this concept does not address the activity of the admixture and the determination of the equivalent replacement of the cement by an admixture with a given hydraulic activity. The k-value concepts are poorly defined in the Czech standards. At present, the k-value only describes the effect of the addition of an active admixture on the value of the hydraulic coefficient, but does not take into account the dependence between the activity of the admixture and the replacement potential of a given cement type.

Název v anglickém jazyce

K-Value Determination Options for Active Admixtures

Popis výsledku anglicky

Concrete admixtures have been successfully used in cementitious composites (especially in concrete) for many years. Recently, however, their importance and usefulness has been increasing, especially with regard to the reduction of the clinker factor in concrete production. In the application of active admixtures in concrete, as a partial replacement of cement, k-value concepts are used in the design of concrete formulation and the calculation of the water coefficient. However, it is essentially a matter of determining the amount of total countable binder, i.e. the cement and part of the active admixture used to calculate the water coefficient. However, this concept does not address the activity of the admixture and the determination of the equivalent replacement of the cement by an admixture with a given hydraulic activity. The k-value concepts are poorly defined in the Czech standards. At present, the k-value only describes the effect of the addition of an active admixture on the value of the hydraulic coefficient, but does not take into account the dependence between the activity of the admixture and the replacement potential of a given cement type.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/FV40343" target="_blank" >FV40343: Konstrukční systémy zpevněných ploch a komunikací na bázi silikátů pro ekologické hospodaření se srážkovou vodou</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

Solid State Phenomena

ISBN

978-80-907611-6-2

ISSN

1662-9779

e-ISSN

—

Počet stran výsledku

8

Strana od-do

193-200

Název nakladatele

Scientific.net

Místo vydání

Switzerland

Místo konání akce

Praha

Datum konání akce

19. 5. 2022

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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