PROPERTIES AND MICROSTRUCTURE OF CEMENT PASTE INCLUDING RECYCLED CONCRETE POWDER
The disposal and further recycling of concrete is being investigated worldwide, because the issue of complete recycling has not yet been fully resolved. A fundamental difficulty faced by researchers is the reuse of the recycled concrete fines which are very small (< 1 mm). Currently, full rec...
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doaj-12a58105160a4a63b84721cd996230e62020-11-24T21:09:01ZengCTU Central LibraryActa Polytechnica1210-27091805-23632017-02-01571495710.14311/AP.2017.57.00493560PROPERTIES AND MICROSTRUCTURE OF CEMENT PASTE INCLUDING RECYCLED CONCRETE POWDERJaroslav TopičZdenek ProšekThe disposal and further recycling of concrete is being investigated worldwide, because the issue of complete recycling has not yet been fully resolved. A fundamental difficulty faced by researchers is the reuse of the recycled concrete fines which are very small (< 1 mm). Currently, full recycling of such waste fine fractions is highly energy intensive and resulting in production of CO<sub>2</sub>. Because of this, the only recycling methods that can be considered as sustainable and environmentally friendly are those which involve recycled concrete powder (RCP) in its raw form. This article investigates the performance of RCP with the grain size < 0.25 mm as a potential binder replacement, and also as a microfiller in cement-based composites. Here, the RCP properties are assessed, including how mechanical properties and the microstructure are influenced by increasing the amount of the RCP in a cement paste (≤ 25 wt%).https://ojs.cvut.cz/ojs/index.php/ap/article/view/3559recycled concrete, recycled concrete powder, recycled concrete fines, mechanical properties, cement replacement |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jaroslav Topič Zdenek Prošek |
spellingShingle |
Jaroslav Topič Zdenek Prošek PROPERTIES AND MICROSTRUCTURE OF CEMENT PASTE INCLUDING RECYCLED CONCRETE POWDER Acta Polytechnica recycled concrete, recycled concrete powder, recycled concrete fines, mechanical properties, cement replacement |
author_facet |
Jaroslav Topič Zdenek Prošek |
author_sort |
Jaroslav Topič |
title |
PROPERTIES AND MICROSTRUCTURE OF CEMENT PASTE INCLUDING RECYCLED CONCRETE POWDER |
title_short |
PROPERTIES AND MICROSTRUCTURE OF CEMENT PASTE INCLUDING RECYCLED CONCRETE POWDER |
title_full |
PROPERTIES AND MICROSTRUCTURE OF CEMENT PASTE INCLUDING RECYCLED CONCRETE POWDER |
title_fullStr |
PROPERTIES AND MICROSTRUCTURE OF CEMENT PASTE INCLUDING RECYCLED CONCRETE POWDER |
title_full_unstemmed |
PROPERTIES AND MICROSTRUCTURE OF CEMENT PASTE INCLUDING RECYCLED CONCRETE POWDER |
title_sort |
properties and microstructure of cement paste including recycled concrete powder |
publisher |
CTU Central Library |
series |
Acta Polytechnica |
issn |
1210-2709 1805-2363 |
publishDate |
2017-02-01 |
description |
The disposal and further recycling of concrete is being investigated worldwide, because the issue of complete recycling has not yet been fully resolved. A fundamental difficulty faced by researchers is the reuse of the recycled concrete fines which are very small (< 1 mm). Currently, full recycling of such waste fine fractions is highly energy intensive and resulting in production of CO<sub>2</sub>. Because of this, the only recycling methods that can be considered as sustainable and environmentally friendly are those which involve recycled concrete powder (RCP) in its raw form. This article investigates the performance of RCP with the grain size < 0.25 mm as a potential binder replacement, and also as a microfiller in cement-based composites. Here, the RCP properties are assessed, including how mechanical properties and the microstructure are influenced by increasing the amount of the RCP in a cement paste (≤ 25 wt%). |
topic |
recycled concrete, recycled concrete powder, recycled concrete fines, mechanical properties, cement replacement |
url |
https://ojs.cvut.cz/ojs/index.php/ap/article/view/3559 |
work_keys_str_mv |
AT jaroslavtopic propertiesandmicrostructureofcementpasteincludingrecycledconcretepowder AT zdenekprosek propertiesandmicrostructureofcementpasteincludingrecycledconcretepowder |
_version_ |
1716758891363041280 |