Use of Concrete Dust as a Partial Cement Replacement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00340948" target="_blank" >RIV/68407700:21110/20:00340948 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21720/20:00340948

Výsledek na webu

<a href="https://doi.org/10.1063/5.0000432" target="_blank" >https://doi.org/10.1063/5.0000432</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0000432" target="_blank" >10.1063/5.0000432</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Use of Concrete Dust as a Partial Cement Replacement

Popis výsledku v původním jazyce

The paper examines the possibilities of using concrete dust as a partial replacement of cement binder. This dust was obtained as a by-product during the crushing of recycled concrete and therefore it is a raw material whose composition is directly dependent on the type and quality of the recycled material. The main motivation of this research was the effort to use this by-product and while contributing to reducing the environmental impact of cement production. In this research, cement was replaced with concrete dust from 0 to 50% to the cement content and after 28 days tested its compressive strength. Experiments have shown a negative effect when using concrete dust as a cement replacement. Primarily it was a high decrease in compressive strength, which was caused not only by cement replacement, but also by presence of organic substances in dust. This then resulted in foaming of the fresh mixture and subsequently a higher loss of strength. Thus, only a limited amount of concrete dust can be added to the concrete, for example to optimization of particle size distribution.

Název v anglickém jazyce

Use of Concrete Dust as a Partial Cement Replacement

Popis výsledku anglicky

The paper examines the possibilities of using concrete dust as a partial replacement of cement binder. This dust was obtained as a by-product during the crushing of recycled concrete and therefore it is a raw material whose composition is directly dependent on the type and quality of the recycled material. The main motivation of this research was the effort to use this by-product and while contributing to reducing the environmental impact of cement production. In this research, cement was replaced with concrete dust from 0 to 50% to the cement content and after 28 days tested its compressive strength. Experiments have shown a negative effect when using concrete dust as a cement replacement. Primarily it was a high decrease in compressive strength, which was caused not only by cement replacement, but also by presence of organic substances in dust. This then resulted in foaming of the fresh mixture and subsequently a higher loss of strength. Thus, only a limited amount of concrete dust can be added to the concrete, for example to optimization of particle size distribution.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/TH02030649" target="_blank" >TH02030649: Environmentálně efektivní stavební a demoliční odpad do konstrukcí (EESDOK)</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

SPECIAL CONCRETE AND COMPOSITES 2019: 16th International Conference

ISBN

978-0-7354-1961-2

ISSN

0094-243X

e-ISSN

1551-7616

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Lísek, Bystřice nad Pernštejnem

Datum konání akce

16. 10. 2019

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000557821500017