Flexural and Compressive Strength of the Cement Paste with Recycled Concrete Powder

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00306332" target="_blank" >RIV/68407700:21110/16:00306332 - isvavai.cz</a>
Result on the web
<a href="http://www.scientific.net/AMR.1144.65.pdf" target="_blank" >http://www.scientific.net/AMR.1144.65.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1144.65" target="_blank" >10.4028/www.scientific.net/AMR.1144.65</a>

Result language
angličtina
Original language name
Flexural and Compressive Strength of the Cement Paste with Recycled Concrete Powder
Original language description
In previous work focused on using recycled concrete powder as cement replacement the basic dependency of the mechanical properties on the amount of recycled concrete powder was defined. Influence of the amount of recycled concrete powder on the flexural and compressive strength was shown on 0, 33, 67 and 100 wt. % cement replacement. Based on the previous data the strength properties of the cement paste with recycled concrete powder below 33 wt. % was almost constant and strength properties were comparable with a reference sample made of cement only. After the recycled concrete powder in cement paste exceeded amount of 33 wt. % the flexural and compressive strength decreased rapidly. In case of 67 wt. % amount of recycled concrete powder the compressive strength decreased about 65 %. The aim of this article is to define critical amount of recycled concrete powder in cement paste when strength properties start decrease rapidly and cement replacement is no longer beneficial. This critical amount will be located somewhere between 30 and 50 wt. % of recycled concrete powder. Replacement below critical amount could lead to cost reduction of cement composites and also the negative impact of the cement production and concrete disposal on environmental could be reduced.
Czech name
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Czech description
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Modern Methods of Experimental and Computational Investigations in Area of Construction II
ISBN
978-3-0357-1092-2
ISSN
1022-6680
e-ISSN
—
Number of pages
5
Pages from-to
65-69
Publisher name
Trans Tech Publications Inc.
Place of publication
Pfaffikon
Event location
Praha
Event date
Sep 22, 2016
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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