Analysis of the influence of supplementary cementitious materials used in UHPC on modulus of elasticity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00333707" target="_blank" >RIV/68407700:21110/19:00333707 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/522/1/012010" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/522/1/012010</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/522/1/012010" target="_blank" >10.1088/1757-899X/522/1/012010</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of the influence of supplementary cementitious materials used in UHPC on modulus of elasticity

Popis výsledku v původním jazyce

The paper presents the results of static and dynamic modulus of elasticity measurements that were conducted on high-performance concretes with partial replacement of cement by supplementary cementitious materials (SCM). Metakaolin, microsilica and fly ash were used as SCM, the replacement levels were 10 %, 20 % and 30 % of cement weight. The tests were conducted on cylindrical samples 100 mm in diameter and 200 mm in height. Dynamic modulus was measured at the age of 1, 3, 7, 14, 21 and 28 days with the use of non-destructive ultrasound pulse method. Static modulus was determined by destructive compression test. The highest values were reached for fly ash at 20 % and 30 % replacements. Samples containing metakaolin had always lower modulus than the reference concrete. The coefficients for recalculation of dynamic modulus to static modulus were derived as 0.95 for reference concrete, 0.80 for metakaolin concrete, 0.85 for microsilica concrete and 0.90 for fly ash concrete.

Název v anglickém jazyce

Analysis of the influence of supplementary cementitious materials used in UHPC on modulus of elasticity

Popis výsledku anglicky

The paper presents the results of static and dynamic modulus of elasticity measurements that were conducted on high-performance concretes with partial replacement of cement by supplementary cementitious materials (SCM). Metakaolin, microsilica and fly ash were used as SCM, the replacement levels were 10 %, 20 % and 30 % of cement weight. The tests were conducted on cylindrical samples 100 mm in diameter and 200 mm in height. Dynamic modulus was measured at the age of 1, 3, 7, 14, 21 and 28 days with the use of non-destructive ultrasound pulse method. Static modulus was determined by destructive compression test. The highest values were reached for fly ash at 20 % and 30 % replacements. Samples containing metakaolin had always lower modulus than the reference concrete. The coefficients for recalculation of dynamic modulus to static modulus were derived as 0.95 for reference concrete, 0.80 for metakaolin concrete, 0.85 for microsilica concrete and 0.90 for fly ash concrete.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA17-19463S" target="_blank" >GA17-19463S: Analýza závislostí mezi mikrostrukturou a makroskopickými vlastnostmi ultravysokohodnotných betonů</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Smart Material Research 2018

ISBN

—

ISSN

1757-899X

e-ISSN

1757-899X

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

IOP Publishing Ltd.

Místo vydání

Bristol

Místo konání akce

Sydney

Datum konání akce

15. 11. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—