Effect of Amorphous Silicon Dioxide Amount on the Mechanical Fracture Parameters of Cement Mortars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU118917" target="_blank" >RIV/00216305:26110/16:PU118917 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scientific.net/SSP.249.147" target="_blank" >https://www.scientific.net/SSP.249.147</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.249.147" target="_blank" >10.4028/www.scientific.net/SSP.249.147</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Amorphous Silicon Dioxide Amount on the Mechanical Fracture Parameters of Cement Mortars

Popis výsledku v původním jazyce

This paper presents selected results from a study concerning mechanical fracture parameters related to the formation of the solid structure of cement mortars. The tested mixtures were composed of an invariable quantity of cement (type CEM I 42.5 R) and an increasing amount of amorphous SiO2 (marked with a P), or a variable quantity of cement replaced by varied quantities of amorphous SiO2 (marked with an N). It was decided that the consistencies of the fresh mixtures should be identical: to ensure this, the water-cement ratio was increased as necessary. Quantification of the mechanical fracture parameters of the studied composites (fracture toughness, fracture energy, compressive strength, modulus of elasticity) was performed via the evaluation of fracture tests performed on beam specimens with an initial stress concentrator loaded in three-point bending. Subsequently, the results of the experiments in the form of load versus displacement diagrams were processed using the effective crack fracture model and the work of fracture method.

Název v anglickém jazyce

Effect of Amorphous Silicon Dioxide Amount on the Mechanical Fracture Parameters of Cement Mortars

Popis výsledku anglicky

This paper presents selected results from a study concerning mechanical fracture parameters related to the formation of the solid structure of cement mortars. The tested mixtures were composed of an invariable quantity of cement (type CEM I 42.5 R) and an increasing amount of amorphous SiO2 (marked with a P), or a variable quantity of cement replaced by varied quantities of amorphous SiO2 (marked with an N). It was decided that the consistencies of the fresh mixtures should be identical: to ensure this, the water-cement ratio was increased as necessary. Quantification of the mechanical fracture parameters of the studied composites (fracture toughness, fracture energy, compressive strength, modulus of elasticity) was performed via the evaluation of fracture tests performed on beam specimens with an initial stress concentrator loaded in three-point bending. Subsequently, the results of the experiments in the form of load versus displacement diagrams were processed using the effective crack fracture model and the work of fracture method.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA14-04522S" target="_blank" >GA14-04522S: Výzkum procesů při vytváření pevné struktury v soustavě oxid křemičitý-portlandský cement ve vztahu k vlastnostem pojiva</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Solid State Phenomena

ISBN

978-3-0383-5675-2

ISSN

1012-0394

e-ISSN

—

Počet stran výsledku

5

Strana od-do

147-151

Název nakladatele

Trans Tech Publications

Místo vydání

Switzerland

Místo konání akce

Litomyšl

Datum konání akce

25. 11. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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