LONG-TIME INVESTIGATION OF CEMENT PASTES WITH MICRONIZED OLD CONCRETE, INFLUENCE OF DIFFERENT TYPE OF MIXING APPROACH ON MECHANICAL PROPERTIES

LONG-TIME INVESTIGATION OF CEMENT PASTES WITH MICRONIZED OLD CONCRETE, INFLUENCE OF DIFFERENT TYPE OF MIXING APPROACH ON MECHANICAL PROPERTIES

The article focuses on the impact of different type of mixing approach on resulting mechanical properties of cement composites. The monitored parameters of the mixing approach were the speed of mixing and the method of mixing the individual components of the fresh mixture. The mechanical properties...

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Bibliographic Details
Main Authors: Zdeněk Prošek, Pavel Tesárek
Format: Article
Language:English
Published: CTU Central Library 2020-03-01
Series:Acta Polytechnica CTU Proceedings
Subjects:
cement composites, recycled old concrete, mixing approach, mechanical properties, long-time development
Online Access:https://ojs.cvut.cz/ojs/index.php/APP/article/view/6387
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spelling doaj-4e513ea3b35944f792b2b5d4cece70032020-11-25T01:29:02ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822020-03-01260717510.14311/APP.2020.26.00715005LONG-TIME INVESTIGATION OF CEMENT PASTES WITH MICRONIZED OLD CONCRETE, INFLUENCE OF DIFFERENT TYPE OF MIXING APPROACH ON MECHANICAL PROPERTIESZdeněk Prošek0Pavel Tesárek1Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech Republic Czech Technical University in Prague, UCEEB, Trinecká 1024, 273 43 Buštehrad, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicThe article focuses on the impact of different type of mixing approach on resulting mechanical properties of cement composites. The monitored parameters of the mixing approach were the speed of mixing and the method of mixing the individual components of the fresh mixture. The mechanical properties of the resulting composites were the main comparative parameter. The determined mechanical properties were dynamic modulus of elasticity, dynamic shear modulus, flexural strength and compressive strength. Dynamics moduli were detected using non-destructive resonance method during the whole experiment and compressive and flexural strength were determined by destructive method for 28 and 129 days old samples. Testing samples had dimensions equal to 40×40×160 mm.https://ojs.cvut.cz/ojs/index.php/APP/article/view/6387cement composites, recycled old concrete, mixing approach, mechanical properties, long-time development
collection DOAJ
language English
format Article
sources DOAJ
author Zdeněk Prošek
Pavel Tesárek
spellingShingle Zdeněk Prošek
Pavel Tesárek
LONG-TIME INVESTIGATION OF CEMENT PASTES WITH MICRONIZED OLD CONCRETE, INFLUENCE OF DIFFERENT TYPE OF MIXING APPROACH ON MECHANICAL PROPERTIES
Acta Polytechnica CTU Proceedings
cement composites, recycled old concrete, mixing approach, mechanical properties, long-time development
author_facet Zdeněk Prošek
Pavel Tesárek
author_sort Zdeněk Prošek
title LONG-TIME INVESTIGATION OF CEMENT PASTES WITH MICRONIZED OLD CONCRETE, INFLUENCE OF DIFFERENT TYPE OF MIXING APPROACH ON MECHANICAL PROPERTIES
title_short LONG-TIME INVESTIGATION OF CEMENT PASTES WITH MICRONIZED OLD CONCRETE, INFLUENCE OF DIFFERENT TYPE OF MIXING APPROACH ON MECHANICAL PROPERTIES
title_full LONG-TIME INVESTIGATION OF CEMENT PASTES WITH MICRONIZED OLD CONCRETE, INFLUENCE OF DIFFERENT TYPE OF MIXING APPROACH ON MECHANICAL PROPERTIES
title_fullStr LONG-TIME INVESTIGATION OF CEMENT PASTES WITH MICRONIZED OLD CONCRETE, INFLUENCE OF DIFFERENT TYPE OF MIXING APPROACH ON MECHANICAL PROPERTIES
title_full_unstemmed LONG-TIME INVESTIGATION OF CEMENT PASTES WITH MICRONIZED OLD CONCRETE, INFLUENCE OF DIFFERENT TYPE OF MIXING APPROACH ON MECHANICAL PROPERTIES
title_sort long-time investigation of cement pastes with micronized old concrete, influence of different type of mixing approach on mechanical properties
publisher CTU Central Library
series Acta Polytechnica CTU Proceedings
issn 2336-5382
publishDate 2020-03-01
description The article focuses on the impact of different type of mixing approach on resulting mechanical properties of cement composites. The monitored parameters of the mixing approach were the speed of mixing and the method of mixing the individual components of the fresh mixture. The mechanical properties of the resulting composites were the main comparative parameter. The determined mechanical properties were dynamic modulus of elasticity, dynamic shear modulus, flexural strength and compressive strength. Dynamics moduli were detected using non-destructive resonance method during the whole experiment and compressive and flexural strength were determined by destructive method for 28 and 129 days old samples. Testing samples had dimensions equal to 40×40×160 mm.
topic cement composites, recycled old concrete, mixing approach, mechanical properties, long-time development
url https://ojs.cvut.cz/ojs/index.php/APP/article/view/6387
work_keys_str_mv AT zdenekprosek longtimeinvestigationofcementpasteswithmicronizedoldconcreteinfluenceofdifferenttypeofmixingapproachonmechanicalproperties
AT paveltesarek longtimeinvestigationofcementpasteswithmicronizedoldconcreteinfluenceofdifferenttypeofmixingapproachonmechanicalproperties
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