Influence of triethanolamine on reactivity of hydrated matrix in sodium silicate self-healing system and the mechanism
•TEA was incorporated to increase the reactivity of hydrated cement.•The self-healing efficiency of sodium silicate system was improved by the complex between TEA and Ca2+.•TEA enhanced the micromechanical properties of self-healing product. A suitable binding agent proposed in literatures or patent...
Gespeichert in:
Veröffentlicht in: | Construction & building materials 2018-10, Vol.185, p.445-452 |
---|---|
Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 452 |
---|---|
container_issue | |
container_start_page | 445 |
container_title | Construction & building materials |
container_volume | 185 |
creator | Hu, Miaomiao Guo, Jintang Xu, Yang Fan, Jinjie Cao, Lei Wang, Meiyu Feng, Yakai |
description | •TEA was incorporated to increase the reactivity of hydrated cement.•The self-healing efficiency of sodium silicate system was improved by the complex between TEA and Ca2+.•TEA enhanced the micromechanical properties of self-healing product.
A suitable binding agent proposed in literatures or patents is sodium silicate, which achieves self-healing by formation of calcium silicate hydrate (C-S-H) in cracks. We systematically investigated the influences of triethanolamine (TEA) on the stimulated C-S-H, sodium silicate/hydrated cement and real self-healing system. Results suggest that TEA addition induces the C-S-H to arrange in order and forms sponge-like structure. In sodium silicate/hydrated cement sample, the morphology of C-S-H is simultaneously affected by the heterogeneous nucleation and restriction effect of hydrated cement particles, and the reticulate structure is observed. It is believed that the formation of TEA-Ca2+ facilitated the dissolution of solid Ca from hydration products, hence increases the chemical reactivity of hydrated cement matrix and the actual binding ability is improved due to the increment of high density C-S-H. Finally, the improved performance of self-healed area was demonstrated by optical microscope, SEM and Raman analysis, meanwhile the promotion in micromechanical properties of C-S-H was studied by AFM. |
doi_str_mv | 10.1016/j.conbuildmat.2018.07.040 |
format | Article |
fullrecord | <record><control><sourceid>gale_cross</sourceid><recordid>TN_cdi_gale_infotracmisc_A554288590</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A554288590</galeid><els_id>S0950061818317124</els_id><sourcerecordid>A554288590</sourcerecordid><originalsourceid>FETCH-LOGICAL-c463t-30fa4c1c2e0fb2e8010ecaf31a3acf9e26ae460e63f51cd03ef2eb8ad671134b3</originalsourceid><addsrcrecordid>eNqNkU-LFDEQxYMoOK5-h4hXu630n0z3cRl0XVjwoueQTirdNXSnJUkPzrc3w3jYhTlIQQoqv_cK6jH2UUApQMgvx9KsfthototOZQWiK2FfQgOv2E50-76AtpKv2Q76FgqQonvL3sV4BABZyWrHTo_ezRt6g3x1PAXCNGm_znohn0eeB9Qm0YnS-QJMZxt0QsvztkB_OHkeV0vbwiPNZPIXjzi7YkI9kx95PMeEC9fe8jQhX9Bkd4rLe_bG6Tnih3_9jv369vXn4Xvx9OPh8XD_VJhG1qmowenGCFMhuKHCDgSg0a4WutbG9VhJjY0ElLVrhbFQo6tw6LSVeyHqZqjv2Ker76hnVOTdmoI2C0Wj7tu2qbqu7SFTxQ1qRI9Bz6tHR3n8gi9v8LksLmRuCj4_EwxbzMeN-Yk0TimOeovxJd5fcRPWGAM69TvQosNZCVCX2NVRPYtdXWJXsFc59qw9XLWYz3oiDCoauuRrKaBJyq70Hy5_AdSPvkw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Influence of triethanolamine on reactivity of hydrated matrix in sodium silicate self-healing system and the mechanism</title><source>Elsevier ScienceDirect Journals</source><creator>Hu, Miaomiao ; Guo, Jintang ; Xu, Yang ; Fan, Jinjie ; Cao, Lei ; Wang, Meiyu ; Feng, Yakai</creator><creatorcontrib>Hu, Miaomiao ; Guo, Jintang ; Xu, Yang ; Fan, Jinjie ; Cao, Lei ; Wang, Meiyu ; Feng, Yakai</creatorcontrib><description>•TEA was incorporated to increase the reactivity of hydrated cement.•The self-healing efficiency of sodium silicate system was improved by the complex between TEA and Ca2+.•TEA enhanced the micromechanical properties of self-healing product.
A suitable binding agent proposed in literatures or patents is sodium silicate, which achieves self-healing by formation of calcium silicate hydrate (C-S-H) in cracks. We systematically investigated the influences of triethanolamine (TEA) on the stimulated C-S-H, sodium silicate/hydrated cement and real self-healing system. Results suggest that TEA addition induces the C-S-H to arrange in order and forms sponge-like structure. In sodium silicate/hydrated cement sample, the morphology of C-S-H is simultaneously affected by the heterogeneous nucleation and restriction effect of hydrated cement particles, and the reticulate structure is observed. It is believed that the formation of TEA-Ca2+ facilitated the dissolution of solid Ca from hydration products, hence increases the chemical reactivity of hydrated cement matrix and the actual binding ability is improved due to the increment of high density C-S-H. Finally, the improved performance of self-healed area was demonstrated by optical microscope, SEM and Raman analysis, meanwhile the promotion in micromechanical properties of C-S-H was studied by AFM.</description><identifier>ISSN: 0950-0618</identifier><identifier>EISSN: 1879-0526</identifier><identifier>DOI: 10.1016/j.conbuildmat.2018.07.040</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Analysis ; Building materials durability ; Calcium silicate hydrate (C-S-H) ; Cement matrix ; Cements (Building materials) ; Chemical properties ; Complexation ; Mechanical properties ; Self-healing ; Triethanolamine</subject><ispartof>Construction & building materials, 2018-10, Vol.185, p.445-452</ispartof><rights>2018 Elsevier Ltd</rights><rights>COPYRIGHT 2018 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c463t-30fa4c1c2e0fb2e8010ecaf31a3acf9e26ae460e63f51cd03ef2eb8ad671134b3</citedby><cites>FETCH-LOGICAL-c463t-30fa4c1c2e0fb2e8010ecaf31a3acf9e26ae460e63f51cd03ef2eb8ad671134b3</cites><orcidid>0000-0002-4649-788X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.conbuildmat.2018.07.040$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Hu, Miaomiao</creatorcontrib><creatorcontrib>Guo, Jintang</creatorcontrib><creatorcontrib>Xu, Yang</creatorcontrib><creatorcontrib>Fan, Jinjie</creatorcontrib><creatorcontrib>Cao, Lei</creatorcontrib><creatorcontrib>Wang, Meiyu</creatorcontrib><creatorcontrib>Feng, Yakai</creatorcontrib><title>Influence of triethanolamine on reactivity of hydrated matrix in sodium silicate self-healing system and the mechanism</title><title>Construction & building materials</title><description>•TEA was incorporated to increase the reactivity of hydrated cement.•The self-healing efficiency of sodium silicate system was improved by the complex between TEA and Ca2+.•TEA enhanced the micromechanical properties of self-healing product.
A suitable binding agent proposed in literatures or patents is sodium silicate, which achieves self-healing by formation of calcium silicate hydrate (C-S-H) in cracks. We systematically investigated the influences of triethanolamine (TEA) on the stimulated C-S-H, sodium silicate/hydrated cement and real self-healing system. Results suggest that TEA addition induces the C-S-H to arrange in order and forms sponge-like structure. In sodium silicate/hydrated cement sample, the morphology of C-S-H is simultaneously affected by the heterogeneous nucleation and restriction effect of hydrated cement particles, and the reticulate structure is observed. It is believed that the formation of TEA-Ca2+ facilitated the dissolution of solid Ca from hydration products, hence increases the chemical reactivity of hydrated cement matrix and the actual binding ability is improved due to the increment of high density C-S-H. Finally, the improved performance of self-healed area was demonstrated by optical microscope, SEM and Raman analysis, meanwhile the promotion in micromechanical properties of C-S-H was studied by AFM.</description><subject>Analysis</subject><subject>Building materials durability</subject><subject>Calcium silicate hydrate (C-S-H)</subject><subject>Cement matrix</subject><subject>Cements (Building materials)</subject><subject>Chemical properties</subject><subject>Complexation</subject><subject>Mechanical properties</subject><subject>Self-healing</subject><subject>Triethanolamine</subject><issn>0950-0618</issn><issn>1879-0526</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>N95</sourceid><recordid>eNqNkU-LFDEQxYMoOK5-h4hXu630n0z3cRl0XVjwoueQTirdNXSnJUkPzrc3w3jYhTlIQQoqv_cK6jH2UUApQMgvx9KsfthototOZQWiK2FfQgOv2E50-76AtpKv2Q76FgqQonvL3sV4BABZyWrHTo_ezRt6g3x1PAXCNGm_znohn0eeB9Qm0YnS-QJMZxt0QsvztkB_OHkeV0vbwiPNZPIXjzi7YkI9kx95PMeEC9fe8jQhX9Bkd4rLe_bG6Tnih3_9jv369vXn4Xvx9OPh8XD_VJhG1qmowenGCFMhuKHCDgSg0a4WutbG9VhJjY0ElLVrhbFQo6tw6LSVeyHqZqjv2Ker76hnVOTdmoI2C0Wj7tu2qbqu7SFTxQ1qRI9Bz6tHR3n8gi9v8LksLmRuCj4_EwxbzMeN-Yk0TimOeovxJd5fcRPWGAM69TvQosNZCVCX2NVRPYtdXWJXsFc59qw9XLWYz3oiDCoauuRrKaBJyq70Hy5_AdSPvkw</recordid><startdate>20181010</startdate><enddate>20181010</enddate><creator>Hu, Miaomiao</creator><creator>Guo, Jintang</creator><creator>Xu, Yang</creator><creator>Fan, Jinjie</creator><creator>Cao, Lei</creator><creator>Wang, Meiyu</creator><creator>Feng, Yakai</creator><general>Elsevier Ltd</general><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>N95</scope><scope>XI7</scope><orcidid>https://orcid.org/0000-0002-4649-788X</orcidid></search><sort><creationdate>20181010</creationdate><title>Influence of triethanolamine on reactivity of hydrated matrix in sodium silicate self-healing system and the mechanism</title><author>Hu, Miaomiao ; Guo, Jintang ; Xu, Yang ; Fan, Jinjie ; Cao, Lei ; Wang, Meiyu ; Feng, Yakai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c463t-30fa4c1c2e0fb2e8010ecaf31a3acf9e26ae460e63f51cd03ef2eb8ad671134b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Analysis</topic><topic>Building materials durability</topic><topic>Calcium silicate hydrate (C-S-H)</topic><topic>Cement matrix</topic><topic>Cements (Building materials)</topic><topic>Chemical properties</topic><topic>Complexation</topic><topic>Mechanical properties</topic><topic>Self-healing</topic><topic>Triethanolamine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hu, Miaomiao</creatorcontrib><creatorcontrib>Guo, Jintang</creatorcontrib><creatorcontrib>Xu, Yang</creatorcontrib><creatorcontrib>Fan, Jinjie</creatorcontrib><creatorcontrib>Cao, Lei</creatorcontrib><creatorcontrib>Wang, Meiyu</creatorcontrib><creatorcontrib>Feng, Yakai</creatorcontrib><collection>CrossRef</collection><collection>Gale Business: Insights</collection><collection>Business Insights: Essentials</collection><jtitle>Construction & building materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hu, Miaomiao</au><au>Guo, Jintang</au><au>Xu, Yang</au><au>Fan, Jinjie</au><au>Cao, Lei</au><au>Wang, Meiyu</au><au>Feng, Yakai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of triethanolamine on reactivity of hydrated matrix in sodium silicate self-healing system and the mechanism</atitle><jtitle>Construction & building materials</jtitle><date>2018-10-10</date><risdate>2018</risdate><volume>185</volume><spage>445</spage><epage>452</epage><pages>445-452</pages><issn>0950-0618</issn><eissn>1879-0526</eissn><abstract>•TEA was incorporated to increase the reactivity of hydrated cement.•The self-healing efficiency of sodium silicate system was improved by the complex between TEA and Ca2+.•TEA enhanced the micromechanical properties of self-healing product.
A suitable binding agent proposed in literatures or patents is sodium silicate, which achieves self-healing by formation of calcium silicate hydrate (C-S-H) in cracks. We systematically investigated the influences of triethanolamine (TEA) on the stimulated C-S-H, sodium silicate/hydrated cement and real self-healing system. Results suggest that TEA addition induces the C-S-H to arrange in order and forms sponge-like structure. In sodium silicate/hydrated cement sample, the morphology of C-S-H is simultaneously affected by the heterogeneous nucleation and restriction effect of hydrated cement particles, and the reticulate structure is observed. It is believed that the formation of TEA-Ca2+ facilitated the dissolution of solid Ca from hydration products, hence increases the chemical reactivity of hydrated cement matrix and the actual binding ability is improved due to the increment of high density C-S-H. Finally, the improved performance of self-healed area was demonstrated by optical microscope, SEM and Raman analysis, meanwhile the promotion in micromechanical properties of C-S-H was studied by AFM.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.conbuildmat.2018.07.040</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-4649-788X</orcidid></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0950-0618 |
ispartof | Construction & building materials, 2018-10, Vol.185, p.445-452 |
issn | 0950-0618 1879-0526 |
language | eng |
recordid | cdi_gale_infotracmisc_A554288590 |
source | Elsevier ScienceDirect Journals |
subjects | Analysis Building materials durability Calcium silicate hydrate (C-S-H) Cement matrix Cements (Building materials) Chemical properties Complexation Mechanical properties Self-healing Triethanolamine |
title | Influence of triethanolamine on reactivity of hydrated matrix in sodium silicate self-healing system and the mechanism |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-19T19%3A11%3A58IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Influence%20of%20triethanolamine%20on%20reactivity%20of%20hydrated%20matrix%20in%20sodium%20silicate%20self-healing%20system%20and%20the%20mechanism&rft.jtitle=Construction%20&%20building%20materials&rft.au=Hu,%20Miaomiao&rft.date=2018-10-10&rft.volume=185&rft.spage=445&rft.epage=452&rft.pages=445-452&rft.issn=0950-0618&rft.eissn=1879-0526&rft_id=info:doi/10.1016/j.conbuildmat.2018.07.040&rft_dat=%3Cgale_cross%3EA554288590%3C/gale_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rft_galeid=A554288590&rft_els_id=S0950061818317124&rfr_iscdi=true |