Shrinkage of the cement pastes with different amount of finely ground recycled concrete

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00240979" target="_blank" >RIV/68407700:21110/15:00240979 - isvavai.cz</a>

Result on the web

<a href="http://www.ijarse.com/images/fullpdf/1450106099_19_Research_Paper.pdf" target="_blank" >http://www.ijarse.com/images/fullpdf/1450106099_19_Research_Paper.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Shrinkage of the cement pastes with different amount of finely ground recycled concrete

Original language description

Complete recycling of the old concrete is very problematic mainly because of fine fraction (< 1 mm). Some studies focus on using recycled concrete powder as thermal activated binder or alternative raw material for manufacture of the Portland clinker. But those approaches are not sustainable and environmental-friendly. Use recycled concrete powder as cement replacement or filler seems to be a better way. This study deals with influence of finely ground recycled concrete (FGRC) on shrinkage of cement pastes. Finely ground recycled concrete was produced by LAVARIS Ltd. by using high speed mill. The old concrete was obtained from old railway sleepers. Four sets of cement paste with different amount (0, 33, 67, 100 wt. %) of FGRC were prepared. Increasing amount of FGRC negatively influenced shrinkage of the cement paste. It is mainly caused by increasing w/c ratio due to higher water demands of FGRC. Improvement could be achieved by using high amount of superplastizers.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JN - Civil engineering

OECD FORD branch

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Project

<a href="/en/project/TA04031256" target="_blank" >TA04031256: Development of mechanically activated materials based on recyclable concrete for progressive stabilized or cold recycled structural layers</a><br>

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

International Journal of Advance Research in Science and Engineering

ISSN

2319-8354

e-ISSN

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Volume of the periodical

04

Issue of the periodical within the volume

02

Country of publishing house

IN - INDIA

Number of pages

5

Pages from-to

157-161

UT code for WoS article

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EID of the result in the Scopus database

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