Mechanical Properties of the Cement Paste with Fine Ground Recycled Concrete Depending on the Microstructure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00306393" target="_blank" >RIV/68407700:21110/16:00306393 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1144.22" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/AMR.1144.22</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1144.22" target="_blank" >10.4028/www.scientific.net/AMR.1144.22</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical Properties of the Cement Paste with Fine Ground Recycled Concrete Depending on the Microstructure

Popis výsledku v původním jazyce

This article deals with the usage of recycled concrete, which arises from the demolition of concrete structures. The work is focused on the development of mechanical properties (Young's modulus) depending on the microstructure of composite cement based materials with different percentage of fine ground recycled concrete as a partial substitute of the filler in the cement mixture, which under certain circumstances also functions as a binder component. To assess of the microstructure there were used images from the optical and scanning electron microscopy. There were used four mixtures of the cement pastes containing 0, 33, 50 and 67 wt. % of finely ground recycled concrete. Development of Young's modulus was measured by nondestructive method. The results showed that of the captured images of surfaces of individual mixtures with increasing amounts of fine ground recycled concrete is seen an increasing amount of pores, which results in a loss of cohesion of the cement matrix and decrease of the Young's modulus.

Název v anglickém jazyce

Mechanical Properties of the Cement Paste with Fine Ground Recycled Concrete Depending on the Microstructure

Popis výsledku anglicky

This article deals with the usage of recycled concrete, which arises from the demolition of concrete structures. The work is focused on the development of mechanical properties (Young's modulus) depending on the microstructure of composite cement based materials with different percentage of fine ground recycled concrete as a partial substitute of the filler in the cement mixture, which under certain circumstances also functions as a binder component. To assess of the microstructure there were used images from the optical and scanning electron microscopy. There were used four mixtures of the cement pastes containing 0, 33, 50 and 67 wt. % of finely ground recycled concrete. Development of Young's modulus was measured by nondestructive method. The results showed that of the captured images of surfaces of individual mixtures with increasing amounts of fine ground recycled concrete is seen an increasing amount of pores, which results in a loss of cohesion of the cement matrix and decrease of the Young's modulus.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GA15-12420S" target="_blank" >GA15-12420S: Modifikace povrchů polymerní a skleněné mikro-výztuže pro aplikace ve stavebnictví</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

Modern Methods of Experimental and Computational Investigations in Area of Construction II

ISBN

978-3-0357-1092-2

ISSN

1022-6680

e-ISSN

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Počet stran výsledku

6

Strana od-do

22-27

Název nakladatele

Trans Tech Publications Inc.

Místo vydání

Pfaffikon

Místo konání akce

Praha

Datum konání akce

22. 9. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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