Specimen size effect on compressive and flexural strength of high-strength fibre-reinforced concrete containing coarse aggregate

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00315865" target="_blank" >RIV/68407700:21110/18:00315865 - isvavai.cz</a>

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S1359836816316882" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1359836816316882</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compositesb.2017.11.032" target="_blank" >10.1016/j.compositesb.2017.11.032</a>

Result language

angličtina

Original language name

Specimen size effect on compressive and flexural strength of high-strength fibre-reinforced concrete containing coarse aggregate

Original language description

It is a well-known fact that the size of the sample influences values of mechanical properties of concrete measured during the tests. However, the comparison of results of various researchers clearly shows that the importance of this effect varies for different types of concrete. The paper presents outcomes of extensive experimental study focused on determination of relations between the size of the specimen and results of mechanical tests of high-strength fibre-reinforced concrete (HSFRC) with coarse aggregate (maximum aggregate size 16 mm). The main observed parameter was compressive strength. Six different HSFRC mixes having the expected compressive strength between 100 and 175 MPa were investigated. Cube samples of four sizes – 40, 100, 150 and 200 mm – were examined. The results proved that the size dependence of compressive strength diminishes with increasing strength of concrete. For very high strength materials (more than 130 MPa), the results were almost size independent. Additionally, flexural strength of two high-strength concrete mixes was measured on prismatic specimens of two different sizes. The results indicated that flexural strength of HSFRC with coarse aggregate is size dependent without regard to expected compressive strength. Conversion factors for the tested type of material were proposed for both compressive and flexural strength measurements.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2018

Confidentiality

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

Name of the periodical

Composites Part B: Engineering

ISSN

1359-8368

e-ISSN

1879-1069

Volume of the periodical

2018

Issue of the periodical within the volume

138

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

77-86

UT code for WoS article

000428973500008

EID of the result in the Scopus database

2-s2.0-85035072898