Article(id=1322612319922803269, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612265061306700, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.2020.05.20190486, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1562601600000, receivedDateStr=2019-07-09, revisedDate=1569686400000, revisedDateStr=2019-09-29, acceptedDate=null, acceptedDateStr=null, onlineDate=1793264950017, onlineDateStr=2026-10-29, pubDate=1589904000000, pubDateStr=2020-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793264950017, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793264950017, creator=13701087609, updateTime=1793264950017, updator=13701087609, issue=Issue{id=1322612265061306700, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='5', pageStart='615', pageEnd='786', issueExtLink='null', onlineDate='null', pubDate='1589904000000', pubDateStr='2020-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793264936938, creator='13701087609', updateTime=1793276961694, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322662700602208333, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612265061306700, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322662700602208334, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612265061306700, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=675, endPage=681, ext={EN=ArticleExt(id=1322612320094769734, articleId=1322612319922803269, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Characterization for Water Vapor Sorption and Organic Content of Silane-impregnated Cement-Based Materials, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Silane impregnation is commonly used as a durability protection measure for concrete. Cement-based materials impregnated with triethoxyisobutylsilane were analyzed by pyrolysis-gas chromatography-mass spectrometry (PGC-MS) to identify the characteristic structure and amount of impregnation. The main component of the pyrolysis fragments is isobutyl. The water vapor sorption isotherm (WVSI) was determined to investigate the interaction between moisture and the impregnated materials. There is no notable difference at a humidity of <30%, the pore condensation (adsorption) and "ink-bottle" effect (desorption) substantially decrease, and the adsorption/desorption rate increases due to the impregnation at a humidity of>60%. The Xenon lamp ageing (10 weeks) after laboratory accelerated ageing process does not change the silane content and the WVSI characteristics.

, authors=Wei JING1, Rui YANG2, Kefei LI1, authorsList=Wei JING, Rui YANG, Kefei LI, authorCompany=null, correspAuthors=Kefei LI, authorNote=

JING Wei (1996-), male, Master candidate. E-mail:

, correspAuthorsNote=
LI Kefei (1972-), male, Ph.D., Professor. Email:
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硅烷浸渍处理是混凝土常用的耐久性防护措施。使用异丁基三乙氧基硅烷浸渍处理水泥基材料,通过裂解-气相色谱-质谱(PGC-MS)表征浸渍于水泥基材料表面硅烷的特征结构与含量,发现其裂解碎片主要成分为异丁基;使用水蒸气等温脱吸附研究硅烷浸渍水泥基材料与水分相互作用特性,发现硅烷浸渍水泥基材料在低湿度区间的等温脱吸附性质没有显著变化,但浸渍处理有效抑制了相对湿度30%以上孔隙中水蒸气的凝聚和“墨水瓶效应”,同时使60%以上相对湿度区间的脱吸附速率常数显著增大。硅烷浸渍水泥基材料经历实验室氙灯老化10周后硅烷含量并未明显降低,其水蒸气脱吸附特性也未明显改变。

, authors=景炜1, 杨睿2, 李克非1, authorsList=景炜, 杨睿, 李克非, authorCompany=null, correspAuthors=李克非, authorNote=

景炜(1996—),男,硕士研究生。

, correspAuthorsNote=
李克非(1972—),男,博士,教授。
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景炜(1996—),男,硕士研究生。

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景炜(1996—),男,硕士研究生。

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硅烷浸渍水泥基材料水蒸气脱吸附性能与有机物含量的表征
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景炜 1 , 杨睿 2 , 李克非 1
硅酸盐学报 | 2020,48(5): 675-681
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硅酸盐学报 | 2020 , 48 (5) : 675 -681
硅烷浸渍水泥基材料水蒸气脱吸附性能与有机物含量的表征
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景炜1 , 杨睿2, 李克非1
作者信息
  • 1.清华大学土木工程系,北京 100084
  • 2.清华大学化学工程系,北京 100084
通讯作者:
李克非(1972—),男,博士,教授。
作者简介:

景炜(1996—),男,硕士研究生。

Characterization for Water Vapor Sorption and Organic Content of Silane-impregnated Cement-Based Materials
Wei JING1 , Rui YANG2, Kefei LI1
Affiliations
  • 1.Civil Engineering Department, Tsinghua University, Beijing 100084 , China
  • 2.Chemical Engineering Department, Tsinghua University, Beijing 100084, China
  • Corresponding Author:
    LI Kefei (1972-), male, Ph.D., Professor. Email:

    JING Wei (1996-), male, Master candidate. E-mail:

出版时间: 2020-05-20 doi: 10.14062/j.issn.0454-5648.2020.05.20190486
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硅烷浸渍处理是混凝土常用的耐久性防护措施。使用异丁基三乙氧基硅烷浸渍处理水泥基材料,通过裂解-气相色谱-质谱(PGC-MS)表征浸渍于水泥基材料表面硅烷的特征结构与含量,发现其裂解碎片主要成分为异丁基;使用水蒸气等温脱吸附研究硅烷浸渍水泥基材料与水分相互作用特性,发现硅烷浸渍水泥基材料在低湿度区间的等温脱吸附性质没有显著变化,但浸渍处理有效抑制了相对湿度30%以上孔隙中水蒸气的凝聚和“墨水瓶效应”,同时使60%以上相对湿度区间的脱吸附速率常数显著增大。硅烷浸渍水泥基材料经历实验室氙灯老化10周后硅烷含量并未明显降低,其水蒸气脱吸附特性也未明显改变。

水泥基材料  /  硅烷浸渍  /  裂解-气相色谱-质谱  /  水蒸气等温脱吸附

Silane impregnation is commonly used as a durability protection measure for concrete. Cement-based materials impregnated with triethoxyisobutylsilane were analyzed by pyrolysis-gas chromatography-mass spectrometry (PGC-MS) to identify the characteristic structure and amount of impregnation. The main component of the pyrolysis fragments is isobutyl. The water vapor sorption isotherm (WVSI) was determined to investigate the interaction between moisture and the impregnated materials. There is no notable difference at a humidity of <30%, the pore condensation (adsorption) and "ink-bottle" effect (desorption) substantially decrease, and the adsorption/desorption rate increases due to the impregnation at a humidity of>60%. The Xenon lamp ageing (10 weeks) after laboratory accelerated ageing process does not change the silane content and the WVSI characteristics.

cement-based materials  /  silane impregnation  /  pyrolysis-gas chromatography-mass spectrometry  /  water vaporsorption/desorption isotherm
景炜, 杨睿, 李克非. 硅烷浸渍水泥基材料水蒸气脱吸附性能与有机物含量的表征. 硅酸盐学报, 2020 , 48 (5) : 675 -681 . DOI: 10.14062/j.issn.0454-5648.2020.05.20190486
Wei JING, Rui YANG, Kefei LI. Characterization for Water Vapor Sorption and Organic Content of Silane-impregnated Cement-Based Materials[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (5) : 675 -681 . DOI: 10.14062/j.issn.0454-5648.2020.05.20190486
  • 国家重点研发计划(2017YFB0309904)
  • 浙江省交通厅交通工程建设科研计划项目(2018035)
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doi: 10.14062/j.issn.0454-5648.2020.05.20190486
  • 接收时间:2019-07-09
  • 首发时间:2026-10-29
  • 出版时间:2020-05-20
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出版历史
  • 收稿日期:2019-07-09
  • 修回日期:2019-09-29
基金
国家重点研发计划(2017YFB0309904)
浙江省交通厅交通工程建设科研计划项目(2018035)
作者信息
    1.清华大学土木工程系,北京 100084
    2.清华大学化学工程系,北京 100084

通讯作者:

李克非(1972—),男,博士,教授。
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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