Hydration heat evolution of the cement paste with recycled concrete: Influence of grain size distribution of recycled concrete powder

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00312928" target="_blank" >RIV/68407700:21110/17:00312928 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Hydration heat evolution of the cement paste with recycled concrete: Influence of grain size distribution of recycled concrete powder

Original language description

The paper deals with the influence of level of grinding of the recycled concrete. Level of grinding mostly influenced on the hydration heat evolution of a cement paste. Measurement of hydration heat evolution is one of the ways to detect reactive properties of recycled concrete powder modified by high speed mill device. Basic characteristics that most influence the hydraulic properties of recycled concrete powder are grin size diagram and chemical composition of the original concrete. Non-hydrated inner part of cement grains could further react if it is exposed to water. In this experiment the recycled concrete from recycled railroad sleepers and structural layers of the D2 highway was used. Recycled concrete powder from highway was divided into 4 more variants which differ by grinding process during production. To detect difference in hydration process four mixtures of cement paste with different types of recycled concrete powder were made and further subjected to calorimetric measurement. The results were after compared with the hydration heat rate of reference cement paste. According to results the type of milling process had minor influence on hydraulic properties of recycled concrete powder compared with influence of origin of recycled concrete.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

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

2017

Confidentiality

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

Article name in the collection

Contemporary Materials and Technologies in Civil Engineering

ISBN

978-3-0357-1138-7

ISSN

1013-9826

e-ISSN

1662-9795

Number of pages

6

Pages from-to

37-42

Publisher name

Trans Tech Publications

Place of publication

Curich

Event location

Praha

Event date

Jun 15, 2016

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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