Návrh zkušebního vzorku cementového kompozitu pro stanovení lomové houževnatosti v ohybu

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F13%3A00208228" target="_blank" >RIV/68407700:21110/13:00208228 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

Proposal of test specimen of cement composite for determining fracture toughness in bending

Original language description

Fracture toughness of cement-based composites is usually tested on samples with dimensions of 150x150x700 mm, weighing about 40 kg. These samples are not only expensive for the amount of material, but also their preparation involves difficult manipulation to create an indentation (notch) by using a diamond-coated blade, which can only be performed by qualified personnel. A new sample with a special initial crack was developed for our experiments, whose mass is a quarter of the weight of the original sample and that does not require machine intensive techniques for creating (cutting) notch. The aim of this work is to prove the possibility to obtain valid fracture toughness values of quality consistent with the theory of fracture mechanics by using thisnew sample.

Czech name

Proposal of test specimen of cement composite for determining fracture toughness in bending

Czech description

Fracture toughness of cement-based composites is usually tested on samples with dimensions of 150x150x700 mm, weighing about 40 kg. These samples are not only expensive for the amount of material, but also their preparation involves difficult manipulation to create an indentation (notch) by using a diamond-coated blade, which can only be performed by qualified personnel. A new sample with a special initial crack was developed for our experiments, whose mass is a quarter of the weight of the original sample and that does not require machine intensive techniques for creating (cutting) notch. The aim of this work is to prove the possibility to obtain valid fracture toughness values of quality consistent with the theory of fracture mechanics by using thisnew sample.

Type

D - Article in proceedings

CEP classification

JN - Civil engineering

OECD FORD branch

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Project

<a href="/en/project/LH12168" target="_blank" >LH12168: Behaviour of High-Performance Fiber-Reinforced Cementitious Composites Subjected to Extreme Loading</a><br>

Continuities

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

Publication year

2013

Confidentiality

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

Article name in the collection

Juniorstav 2013

ISBN

978-80-214-4670-0

ISSN

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e-ISSN

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Number of pages

5

Pages from-to

1-5

Publisher name

Vysoké učení technické v Brně, Fakulta stavební

Place of publication

Brno

Event location

Brno

Event date

Feb 7, 2013

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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