Thermal analysis and phase formation of eco-friendly cold-bonded high-calcium fly ash–calcium hydroxide lightweight aggregate at various curing time

© 2019, Akadémiai Kiadó, Budapest, Hungary. The research on fly ash lightweight aggregate has been of great interest recently due to its potential for use as a substitute for natural aggregate in concrete mixes. In this work, thermogravimetric analysis of cold-bonded high-calcium fly ash lightweight...

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Main Authors: Chalermphan Narattha, Arnon Chaipanich
Format: Journal
Published: 2020
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/67679
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-676792020-04-02T15:18:23Z Thermal analysis and phase formation of eco-friendly cold-bonded high-calcium fly ash–calcium hydroxide lightweight aggregate at various curing time Chalermphan Narattha Arnon Chaipanich Chemistry Physics and Astronomy © 2019, Akadémiai Kiadó, Budapest, Hungary. The research on fly ash lightweight aggregate has been of great interest recently due to its potential for use as a substitute for natural aggregate in concrete mixes. In this work, thermogravimetric analysis of cold-bonded high-calcium fly ash lightweight aggregate with and without minor use of calcium hydroxide was investigated. Calcium hydroxide was used at 5 and 10% to replace part of fly ash. Thermogravimetric analysis measurements were carried out on samples at 0, 3 and 28 days. The results showed that calcium silicate hydrate phase in fly ash–calcium hydroxide mix is higher than reference fly ash mix. This is due to the reaction of calcium hydroxide which helps accelerate the pozzolanic reaction of fly ash. Calcium silicate hydrate was also shown to increase with curing time. Moreover, calcium hydroxide and minor calcium carbonate peaks can also be seen in all mixes while the highest amount of calcium hydroxide was found in the 90FA10CH mix. 2020-04-02T14:59:54Z 2020-04-02T14:59:54Z 2019-11-01 Journal 15882926 13886150 2-s2.0-85073935114 10.1007/s10973-019-08806-4 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85073935114&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/67679
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Chemistry
Physics and Astronomy
spellingShingle Chemistry
Physics and Astronomy
Chalermphan Narattha
Arnon Chaipanich
Thermal analysis and phase formation of eco-friendly cold-bonded high-calcium fly ash–calcium hydroxide lightweight aggregate at various curing time
description © 2019, Akadémiai Kiadó, Budapest, Hungary. The research on fly ash lightweight aggregate has been of great interest recently due to its potential for use as a substitute for natural aggregate in concrete mixes. In this work, thermogravimetric analysis of cold-bonded high-calcium fly ash lightweight aggregate with and without minor use of calcium hydroxide was investigated. Calcium hydroxide was used at 5 and 10% to replace part of fly ash. Thermogravimetric analysis measurements were carried out on samples at 0, 3 and 28 days. The results showed that calcium silicate hydrate phase in fly ash–calcium hydroxide mix is higher than reference fly ash mix. This is due to the reaction of calcium hydroxide which helps accelerate the pozzolanic reaction of fly ash. Calcium silicate hydrate was also shown to increase with curing time. Moreover, calcium hydroxide and minor calcium carbonate peaks can also be seen in all mixes while the highest amount of calcium hydroxide was found in the 90FA10CH mix.
format Journal
author Chalermphan Narattha
Arnon Chaipanich
author_facet Chalermphan Narattha
Arnon Chaipanich
author_sort Chalermphan Narattha
title Thermal analysis and phase formation of eco-friendly cold-bonded high-calcium fly ash–calcium hydroxide lightweight aggregate at various curing time
title_short Thermal analysis and phase formation of eco-friendly cold-bonded high-calcium fly ash–calcium hydroxide lightweight aggregate at various curing time
title_full Thermal analysis and phase formation of eco-friendly cold-bonded high-calcium fly ash–calcium hydroxide lightweight aggregate at various curing time
title_fullStr Thermal analysis and phase formation of eco-friendly cold-bonded high-calcium fly ash–calcium hydroxide lightweight aggregate at various curing time
title_full_unstemmed Thermal analysis and phase formation of eco-friendly cold-bonded high-calcium fly ash–calcium hydroxide lightweight aggregate at various curing time
title_sort thermal analysis and phase formation of eco-friendly cold-bonded high-calcium fly ash–calcium hydroxide lightweight aggregate at various curing time
publishDate 2020
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85073935114&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/67679
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