Modified Disk-Shaped Compact Tension Test for Measuring Concrete Fracture Properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00479145" target="_blank" >RIV/68081723:_____/17:00479145 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26110/17:PU124997

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s40069-017-0189-4" target="_blank" >http://dx.doi.org/10.1007/s40069-017-0189-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s40069-017-0189-4" target="_blank" >10.1007/s40069-017-0189-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modified Disk-Shaped Compact Tension Test for Measuring Concrete Fracture Properties

Popis výsledku v původním jazyce

new approach for measuring the specific fracture energy of concrete denoted modified disk-shaped compact tension (MDCT) test is presented. The procedure is based on previous ideas regarding the use of compact tension specimens for studying the fracture behavior of concrete but implies significant modifications of the specimen morphology in order to avoid premature failures (such as the breakage of concrete around the pulling load holes). The manufacturing and test performance is improved and simplified, enhancing the reliability of the material characterization. MDCT specimens are particularly suitable when fracture properties of already casted concrete structures are required. To evaluate the applicability of the MDCT test to estimate the size-independent specific fracture energy of concrete (G(F) ), the interaction between the fracture process zone of concrete and the boundary of the MDCT specimens at the end of the test is properly analyzed. Further, the experimental results of G(F) obtained by MDCT tests for normal- and high-strength self-compacting concrete mixes are compared with those obtained using the well-established three-point bending test. The procedure proposed furnishes promising results, and the G(F) values obtained are reliable enough for the specimen size range studied in this work.

Název v anglickém jazyce

Modified Disk-Shaped Compact Tension Test for Measuring Concrete Fracture Properties

Popis výsledku anglicky

new approach for measuring the specific fracture energy of concrete denoted modified disk-shaped compact tension (MDCT) test is presented. The procedure is based on previous ideas regarding the use of compact tension specimens for studying the fracture behavior of concrete but implies significant modifications of the specimen morphology in order to avoid premature failures (such as the breakage of concrete around the pulling load holes). The manufacturing and test performance is improved and simplified, enhancing the reliability of the material characterization. MDCT specimens are particularly suitable when fracture properties of already casted concrete structures are required. To evaluate the applicability of the MDCT test to estimate the size-independent specific fracture energy of concrete (G(F) ), the interaction between the fracture process zone of concrete and the boundary of the MDCT specimens at the end of the test is properly analyzed. Further, the experimental results of G(F) obtained by MDCT tests for normal- and high-strength self-compacting concrete mixes are compared with those obtained using the well-established three-point bending test. The procedure proposed furnishes promising results, and the G(F) values obtained are reliable enough for the specimen size range studied in this work.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20306 - Audio engineering, reliability analysis

Projekt

<a href="/cs/project/GA16-18702S" target="_blank" >GA16-18702S: Problematika porušování v blízkosti rozhraní plniva a matrice kompozitů na silikátové bázi (AMIRI)</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

International Journal of Concrete Structures and Materials

ISSN

1976-0485

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

KR - Korejská republika

Počet stran výsledku

14

Strana od-do

215-228

Kód UT WoS článku

000404397200003

EID výsledku v databázi Scopus

2-s2.0-85021314072