Determination of conversion factors for compressive strength of HPFRC measured on specimens of different dimensions

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of conversion factors for compressive strength of HPFRC measured on specimens of different dimensions

Popis výsledku v původním jazyce

Current development of high-strength concretes is aimed at using high-strength aggregate with maximum grain size of four or eight millimetres. Ultra-high-strength concretes with compressive strength higher than 150 MPa are commonly produced in laboratories nowadays. For such concretes, measuring compressive strength on classic cubes with dimensions 150 mm x 150 mm x 150 mm is not suitable, as for this size of specimen the applied load of compression testing machine must be several thousand kiloNewtons.Reaching such values of applied testing load is difficult. Utilisation of smaller specimens for concretes with lower grain size is possible and strengths determined in tests with these specimens can be adequately accurate. The main objective of this paper is to present the research that investigated relations of compressive strengths measured on differently sized specimens. Results obtained for standard specimens (150 mm x 150 mm x 150 mm) are compared to 100 mm x 100 mm x 100 mm cubes.

Název v anglickém jazyce

Determination of conversion factors for compressive strength of HPFRC measured on specimens of different dimensions

Popis výsledku anglicky

Current development of high-strength concretes is aimed at using high-strength aggregate with maximum grain size of four or eight millimetres. Ultra-high-strength concretes with compressive strength higher than 150 MPa are commonly produced in laboratories nowadays. For such concretes, measuring compressive strength on classic cubes with dimensions 150 mm x 150 mm x 150 mm is not suitable, as for this size of specimen the applied load of compression testing machine must be several thousand kiloNewtons.Reaching such values of applied testing load is difficult. Utilisation of smaller specimens for concretes with lower grain size is possible and strengths determined in tests with these specimens can be adequately accurate. The main objective of this paper is to present the research that investigated relations of compressive strengths measured on differently sized specimens. Results obtained for standard specimens (150 mm x 150 mm x 150 mm) are compared to 100 mm x 100 mm x 100 mm cubes.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the RILEM-fib-AFGC International Symposium on Ultra-High Performance Fibre-Reinforced Concrete

ISBN

978-2-35158-130-8

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

731-738

Název nakladatele

RILEM Publications SARL

Místo vydání

Bagneux

Místo konání akce

Marseille

Datum konání akce

1. 10. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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