Characterization of alkali activated slag paste after exposure to high temperatures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F13%3APU104375" target="_blank" >RIV/00216305:26110/13:PU104375 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.conbuildmat.2013.06.070" target="_blank" >http://dx.doi.org/10.1016/j.conbuildmat.2013.06.070</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.conbuildmat.2013.06.070" target="_blank" >10.1016/j.conbuildmat.2013.06.070</a>

Result language

angličtina

Original language name

Characterization of alkali activated slag paste after exposure to high temperatures

Original language description

The paper covers results on the study of microstructural changes of alkali activated granulated blast furnace slag exposed to high temperatures. Paste prepared from slag activated with solid sodium silicate glass was subjected to temperatures in the range of 200?1200 C for the period of 1 h. The microstructural changes caused by the heat were investigated by means of SEM, HT-XRD analysis and FTIR and MAS NMR spectroscopy. Based on the latter two methods, only partial dehydration and decomposition of C-A-S-H phase can be observed up to 600 C. The principle changes in microstucture of alkali activated slag occur between 600 and 800 C, when the dehydration of C-A-S-H phase is complete and new phases start to crystallize, among which akermanite is dominant. Such a significant phase transformation is reflected in the morphology, pore distribution, and mechanical properties of the AAS paste.

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/ED2.1.00%2F03.0097" target="_blank" >ED2.1.00/03.0097: AdMaS - Advanced Materials, Structures and Technologies</a><br>

Continuities

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

Publication year

2013

Confidentiality

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

Name of the periodical

Construction and building materials

ISSN

0950-0618

e-ISSN

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Volume of the periodical

47

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

1479-1487

UT code for WoS article

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EID of the result in the Scopus database

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