Delayed setting time for alkali-activated slag composites using activator containing SiO2 and Na2O

Delayed setting time for alkali-activated slag composites using activator containing SiO2 and Na2O

This study examines the influence of SiO and Na O mix proportions on the properties of alkali-activated slag (AAS) pastes. In order to solve the rapid setting problem associated with AAS, phosphoric or silicic acid is commonly added to the alkaline activator. The retarding effect of these additions...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Materials science--Poland 2022-04, Vol.39 (4), p.570-579
Hauptverfasser: Hung, Chi-Che, Lin, Wei-Ting, Yeih, Wei-Chung, Chang, Jiang-Jhy
Format: Artikel
Sprache:eng
Schlagworte:
alkali-activated materials
microstructures
setting time
silicate-based activator
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 579
container_issue 4
container_start_page 570
container_title Materials science--Poland
container_volume 39
creator Hung, Chi-Che
Lin, Wei-Ting
Yeih, Wei-Chung
Chang, Jiang-Jhy
description This study examines the influence of SiO and Na O mix proportions on the properties of alkali-activated slag (AAS) pastes. In order to solve the rapid setting problem associated with AAS, phosphoric or silicic acid is commonly added to the alkaline activator. The retarding effect of these additions suggests a close relationship between pH and setting time. In this study, AAS pastes with various SiO and Na O dosages were analyzed. Regression analysis was carried out using pH value and setting time to identify the main parameters affecting the setting time. Results showed that the alkali modulus (i.e., the weight ratio of SiO over Na O) is correlated with the pH value. Specifically, the initial and final setting times were significantly reduced under lower SiO and Na O dosages. Therefore, a higher alkali modulus prolonged the setting time.
doi_str_mv 10.2478/msp-2021-0045
format Article
fullrecord <record><control><sourceid>walterdegruyter</sourceid><recordid>TN_cdi_walterdegruyter_journals_10_2478_msp_2021_0045394570</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_2478_msp_2021_0045394570</sourcerecordid><originalsourceid>FETCH-LOGICAL-u910-e6bffe9a3d2811cf915b0d066afaa3a8ffc5909b7b63f9c46804142ae9c251cd3</originalsourceid><addsrcrecordid>eNotkEtrwzAMx81gsNL1uLu_gDf5kYfZaXRPKMthPewWFMcO7vIosbPRb7-EVhcJ6a-_xI-QOw73QmX5QxeOTIDgDEAlV2QlIJeMS_V9QzYhHGCONE9A8RWpnm2LJ1vTYGP0fUOj7yx1w0ix_cHWMzTR_2JcFC021AzdcQg-2kCnsOgv83nBDH1E3y_NL18Iin1NP1EUt-TaYRvs5pLXZP_6st--s13x9rF92rFJc2A2rZyzGmUtcs6N0zypoIY0RYcoMXfOJBp0lVWpdNqoNJ__VwKtNiLhppZr8ni2_cM22rG2zTid5qI8DNPYz4dLDuWCp5zxlAuecsEjtUoykP9o8V5A</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Delayed setting time for alkali-activated slag composites using activator containing SiO2 and Na2O</title><source>Walter De Gruyter: Open Access Journals</source><source>EZB-FREE-00999 freely available EZB journals</source><source>Free Full-Text Journals in Chemistry</source><creator>Hung, Chi-Che ; Lin, Wei-Ting ; Yeih, Wei-Chung ; Chang, Jiang-Jhy</creator><creatorcontrib>Hung, Chi-Che ; Lin, Wei-Ting ; Yeih, Wei-Chung ; Chang, Jiang-Jhy</creatorcontrib><description>This study examines the influence of SiO and Na O mix proportions on the properties of alkali-activated slag (AAS) pastes. In order to solve the rapid setting problem associated with AAS, phosphoric or silicic acid is commonly added to the alkaline activator. The retarding effect of these additions suggests a close relationship between pH and setting time. In this study, AAS pastes with various SiO and Na O dosages were analyzed. Regression analysis was carried out using pH value and setting time to identify the main parameters affecting the setting time. Results showed that the alkali modulus (i.e., the weight ratio of SiO over Na O) is correlated with the pH value. Specifically, the initial and final setting times were significantly reduced under lower SiO and Na O dosages. Therefore, a higher alkali modulus prolonged the setting time.</description><identifier>EISSN: 2083-134X</identifier><identifier>DOI: 10.2478/msp-2021-0045</identifier><language>eng</language><publisher>Sciendo</publisher><subject>alkali-activated materials ; microstructures ; setting time ; silicate-based activator</subject><ispartof>Materials science--Poland, 2022-04, Vol.39 (4), p.570-579</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://sciendo.com/pdf/10.2478/msp-2021-0045$$EPDF$$P50$$Gwalterdegruyter$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://sciendo.com/article/10.2478/msp-2021-0045$$EHTML$$P50$$Gwalterdegruyter$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,27924,27925,76164,76165</link.rule.ids></links><search><creatorcontrib>Hung, Chi-Che</creatorcontrib><creatorcontrib>Lin, Wei-Ting</creatorcontrib><creatorcontrib>Yeih, Wei-Chung</creatorcontrib><creatorcontrib>Chang, Jiang-Jhy</creatorcontrib><title>Delayed setting time for alkali-activated slag composites using activator containing SiO2 and Na2O</title><title>Materials science--Poland</title><description>This study examines the influence of SiO and Na O mix proportions on the properties of alkali-activated slag (AAS) pastes. In order to solve the rapid setting problem associated with AAS, phosphoric or silicic acid is commonly added to the alkaline activator. The retarding effect of these additions suggests a close relationship between pH and setting time. In this study, AAS pastes with various SiO and Na O dosages were analyzed. Regression analysis was carried out using pH value and setting time to identify the main parameters affecting the setting time. Results showed that the alkali modulus (i.e., the weight ratio of SiO over Na O) is correlated with the pH value. Specifically, the initial and final setting times were significantly reduced under lower SiO and Na O dosages. Therefore, a higher alkali modulus prolonged the setting time.</description><subject>alkali-activated materials</subject><subject>microstructures</subject><subject>setting time</subject><subject>silicate-based activator</subject><issn>2083-134X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNotkEtrwzAMx81gsNL1uLu_gDf5kYfZaXRPKMthPewWFMcO7vIosbPRb7-EVhcJ6a-_xI-QOw73QmX5QxeOTIDgDEAlV2QlIJeMS_V9QzYhHGCONE9A8RWpnm2LJ1vTYGP0fUOj7yx1w0ix_cHWMzTR_2JcFC021AzdcQg-2kCnsOgv83nBDH1E3y_NL18Iin1NP1EUt-TaYRvs5pLXZP_6st--s13x9rF92rFJc2A2rZyzGmUtcs6N0zypoIY0RYcoMXfOJBp0lVWpdNqoNJ__VwKtNiLhppZr8ni2_cM22rG2zTid5qI8DNPYz4dLDuWCp5zxlAuecsEjtUoykP9o8V5A</recordid><startdate>20220426</startdate><enddate>20220426</enddate><creator>Hung, Chi-Che</creator><creator>Lin, Wei-Ting</creator><creator>Yeih, Wei-Chung</creator><creator>Chang, Jiang-Jhy</creator><general>Sciendo</general><scope/></search><sort><creationdate>20220426</creationdate><title>Delayed setting time for alkali-activated slag composites using activator containing SiO2 and Na2O</title><author>Hung, Chi-Che ; Lin, Wei-Ting ; Yeih, Wei-Chung ; Chang, Jiang-Jhy</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-u910-e6bffe9a3d2811cf915b0d066afaa3a8ffc5909b7b63f9c46804142ae9c251cd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>alkali-activated materials</topic><topic>microstructures</topic><topic>setting time</topic><topic>silicate-based activator</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hung, Chi-Che</creatorcontrib><creatorcontrib>Lin, Wei-Ting</creatorcontrib><creatorcontrib>Yeih, Wei-Chung</creatorcontrib><creatorcontrib>Chang, Jiang-Jhy</creatorcontrib><jtitle>Materials science--Poland</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hung, Chi-Che</au><au>Lin, Wei-Ting</au><au>Yeih, Wei-Chung</au><au>Chang, Jiang-Jhy</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Delayed setting time for alkali-activated slag composites using activator containing SiO2 and Na2O</atitle><jtitle>Materials science--Poland</jtitle><date>2022-04-26</date><risdate>2022</risdate><volume>39</volume><issue>4</issue><spage>570</spage><epage>579</epage><pages>570-579</pages><eissn>2083-134X</eissn><abstract>This study examines the influence of SiO and Na O mix proportions on the properties of alkali-activated slag (AAS) pastes. In order to solve the rapid setting problem associated with AAS, phosphoric or silicic acid is commonly added to the alkaline activator. The retarding effect of these additions suggests a close relationship between pH and setting time. In this study, AAS pastes with various SiO and Na O dosages were analyzed. Regression analysis was carried out using pH value and setting time to identify the main parameters affecting the setting time. Results showed that the alkali modulus (i.e., the weight ratio of SiO over Na O) is correlated with the pH value. Specifically, the initial and final setting times were significantly reduced under lower SiO and Na O dosages. Therefore, a higher alkali modulus prolonged the setting time.</abstract><pub>Sciendo</pub><doi>10.2478/msp-2021-0045</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier EISSN: 2083-134X
ispartof Materials science--Poland, 2022-04, Vol.39 (4), p.570-579
issn 2083-134X
language eng
recordid cdi_walterdegruyter_journals_10_2478_msp_2021_0045394570
source Walter De Gruyter: Open Access Journals; EZB-FREE-00999 freely available EZB journals; Free Full-Text Journals in Chemistry
subjects alkali-activated materials
microstructures
setting time
silicate-based activator
title Delayed setting time for alkali-activated slag composites using activator containing SiO2 and Na2O
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-28T23%3A28%3A29IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-walterdegruyter&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Delayed%20setting%20time%20for%20alkali-activated%20slag%20composites%20using%20activator%20containing%20SiO2%20and%20Na2O&rft.jtitle=Materials%20science--Poland&rft.au=Hung,%20Chi-Che&rft.date=2022-04-26&rft.volume=39&rft.issue=4&rft.spage=570&rft.epage=579&rft.pages=570-579&rft.eissn=2083-134X&rft_id=info:doi/10.2478/msp-2021-0045&rft_dat=%3Cwalterdegruyter%3E10_2478_msp_2021_0045394570%3C/walterdegruyter%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true