HYBRID ALKALI-ACTIVATED PORTLAND CEMENTS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F18%3APU129581" target="_blank" >RIV/00216305:26310/18:PU129581 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5281/zenodo.1405563" target="_blank" >http://dx.doi.org/10.5281/zenodo.1405563</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5281/zenodo.1405563" target="_blank" >10.5281/zenodo.1405563</a>

Jazyk výsledku

angličtina

Název v původním jazyce

HYBRID ALKALI-ACTIVATED PORTLAND CEMENTS

Popis výsledku v původním jazyce

The most promising way to improve the sustainability of cement is to produce blended Portland cements with supplementary cementitious materials. Blast furnace slag (BFS) is one of significant pozzolan sources used worldwide in blended cements which contributes to lowering the environmental impact of cement industry. On the other hand, the replacement of Portland clinker is connected with undesirable effects such as the reduction of early strength development. In order to overcome this disadvantage, the study deals with the development of hybrid cements in which the utilization of solid waste alkaline activator quickly awakens the pozzolanic properties of BFS. New types of blended alkali activated cements were designed to meet the European standard EN 197-1 and classified to the Blastfurnace CEM III cements in accordance with the mechanical, physical and chemical requirements. The alkali activation caused an increase of early compressive strength in comparison with reference cement and at the same time the initial setting time was delayed which is also interesting from the point of view of concrete production. Moreover, this non-traditional hybrid alkali-activated Blastfurnace cement provides considerable ecological and economical potential.

Název v anglickém jazyce

HYBRID ALKALI-ACTIVATED PORTLAND CEMENTS

Popis výsledku anglicky

The most promising way to improve the sustainability of cement is to produce blended Portland cements with supplementary cementitious materials. Blast furnace slag (BFS) is one of significant pozzolan sources used worldwide in blended cements which contributes to lowering the environmental impact of cement industry. On the other hand, the replacement of Portland clinker is connected with undesirable effects such as the reduction of early strength development. In order to overcome this disadvantage, the study deals with the development of hybrid cements in which the utilization of solid waste alkaline activator quickly awakens the pozzolanic properties of BFS. New types of blended alkali activated cements were designed to meet the European standard EN 197-1 and classified to the Blastfurnace CEM III cements in accordance with the mechanical, physical and chemical requirements. The alkali activation caused an increase of early compressive strength in comparison with reference cement and at the same time the initial setting time was delayed which is also interesting from the point of view of concrete production. Moreover, this non-traditional hybrid alkali-activated Blastfurnace cement provides considerable ecological and economical potential.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time

ISBN

978-2-35158-202-2

ISSN

—

e-ISSN

—

Počet stran výsledku

1144

Strana od-do

455-460

Název nakladatele

RILEM Publications

Místo vydání

Paris

Místo konání akce

Funchal

Datum konání akce

24. 10. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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