DETERMINATION OF HIGH PERFORMANCE CONCRETE STRENGTH BY MEANS OF IMPACT HAMMER

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F09%3APU82798" target="_blank" >RIV/00216305:26110/09:PU82798 - 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

DETERMINATION OF HIGH PERFORMANCE CONCRETE STRENGTH BY MEANS OF IMPACT HAMMER

Popis výsledku v původním jazyce

Currently, in civil engineering, high performance concrete i.e. concretes whose minimum compression strength is equal or more than 65 MPa are increasingly used. Side effect of it is need for determination of their construction strength. In particular, recently built high performance structures suffer from sampling of drill cores. Therefore, noninvasive impact hammers - to be specific Schmitt impact hammer - were used for determination of structural concrete strength. However, efficiency of calibration correlation using impact hammer volume indicated in standards (e.g. EN 137914, CSN 731373) or by impact hammer manufacturers is disputable since these correlations were developed at the time such concretes were uncommon. This paper indicated calibration correlations as elaborated for high performance concretes class C 55/67 to C 80/95; 2 to 60 days old, for Schmidt impact hammer type N & L. Calibration correlations generated feature high degree of correlation and practical utility. Moreov

Název v anglickém jazyce

DETERMINATION OF HIGH PERFORMANCE CONCRETE STRENGTH BY MEANS OF IMPACT HAMMER

Popis výsledku anglicky

Currently, in civil engineering, high performance concrete i.e. concretes whose minimum compression strength is equal or more than 65 MPa are increasingly used. Side effect of it is need for determination of their construction strength. In particular, recently built high performance structures suffer from sampling of drill cores. Therefore, noninvasive impact hammers - to be specific Schmitt impact hammer - were used for determination of structural concrete strength. However, efficiency of calibration correlation using impact hammer volume indicated in standards (e.g. EN 137914, CSN 731373) or by impact hammer manufacturers is disputable since these correlations were developed at the time such concretes were uncommon. This paper indicated calibration correlations as elaborated for high performance concretes class C 55/67 to C 80/95; 2 to 60 days old, for Schmidt impact hammer type N & L. Calibration correlations generated feature high degree of correlation and practical utility. Moreov

Druh

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

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

The e-Journal of Nondestructive Testing

ISSN

1435-4934

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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