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Article(id=1319987041769730696, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986978137944236, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210785, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1630944000000, receivedDateStr=2021-09-07, revisedDate=1635350400000, revisedDateStr=2021-10-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1792639034930, onlineDateStr=2026-10-22, pubDate=1647705600000, pubDateStr=2022-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792639034930, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792639034930, creator=13701087609, updateTime=1792639034930, updator=13701087609, issue=Issue{id=1319986978137944236, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='3', pageStart='555', pageEnd='876', issueExtLink='null', onlineDate='null', pubDate='1647705600000', pubDateStr='2022-03-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792639019760, creator='13701087609', updateTime=1792639223744, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319987833767575858, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986978137944236, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319987833767575859, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986978137944236, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=839, endPage=848, ext={EN=ArticleExt(id=1319987041962668681, articleId=1319987041769730696, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Residual Mechanical Properties of Ultra-High Performance Concrete Doped with Copolymer Formaldehyde Fiber Exposed to High Temperature, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

The residual mechanical properties and microstructure of UHPC mixed with 6, 8, 12 mm copolymer formaldehyde fiber and steel fiber after high temperature were studied. The test results show that at 400 ℃, only plain concrete bursts. At 500 ℃, the steel fiber UHPC specimen burst, while the UHPC specimen with single copolymer formaldehyde fiber and mixed with two kinds of fiber can still maintain relatively integrity, and the latter has higher residual strength at high temperature. SEM and pore structure show that the copolymer formaldehyde fiber in UHPC can be closely bonded to the matrix after steam curing at high temperature. The pore formed by fiber melting at 165 ℃ can effectively relieve and release steam pressure, keep the concrete matrix intact and prevent it from cracking at 500 ℃. The research results reveal the mechanism of the copolymer formaldehyde fiber on the high temperature performance of concrete, which has great reference value for its application in UHPC.

, authors=Yuexiao HE1, Weirong HUANG1, Jiangchuan GUO1, Hang CHEN2, Maohao YAN2, Jiao WANG2, authorsList=Yuexiao HE, Weirong HUANG, Jiangchuan GUO, Hang CHEN, Maohao YAN, Jiao WANG, authorCompany=null, correspAuthors=Weirong HUANG, authorNote=

HE Yuexiao (1997-), male, Master candidate. E-mail:

, correspAuthorsNote=
HUANG Weirong (1970-), female, Master, Professor.
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研究了掺入6、8、12 mm共聚甲醛纤维及钢纤维的超高性能混凝土（UHPC）高温后残余力学性能及微观结构。结果表明：400 ℃时，仅素混凝土发生爆裂；500 ℃时单掺钢纤维UHPC试件发生爆裂，单掺共聚甲醛纤维及混掺2种纤维的UHPC试件仍能保持相对完整，后者高温残余强度较高。UHPC中共聚甲醛纤维在高温蒸汽养护后，能与基体紧密黏接，165 ℃后纤维熔化形成的孔洞能有效缓解并释放蒸汽压，保持混凝土基体完整，防止其在500 ℃发生高温爆裂。本工作揭示了共聚甲醛纤维在混凝土高温性能方面的作用机理，对其在UHPC中应用有参考价值。

, authors=何越骁1, 黄维蓉1, 郭江川1, 陈行2, 晏茂豪2, 王娇2, authorsList=何越骁, 黄维蓉, 郭江川, 陈行, 晏茂豪, 王娇, authorCompany=null, correspAuthors=黄维蓉, authorNote=

何越骁（1997—），男，硕士研究生。

, correspAuthorsNote=
黄维蓉（1970—），女，硕士，教授。
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共聚甲醛纤维超高性能混凝土高温后残余力学性能
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何越骁 1 , 黄维蓉 1 , 郭江川 1 , 陈行 2 , 晏茂豪 2 , 王娇 2
硅酸盐学报 | 研究论文 2022,50(3): 839-848
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硅酸盐学报 |研究论文 2022 , 50 (3) : 839 -848
共聚甲醛纤维超高性能混凝土高温后残余力学性能
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何越骁1 , 黄维蓉1, 郭江川1, 陈行2, 晏茂豪2, 王娇2
作者信息
  • 1．重庆交通大学材料科学与工程学院，重庆 400074
  • 2．重庆交通大学土木工程学院，重庆 400074
通讯作者:
黄维蓉（1970—），女，硕士，教授。
作者简介:

何越骁（1997—），男，硕士研究生。

Residual Mechanical Properties of Ultra-High Performance Concrete Doped with Copolymer Formaldehyde Fiber Exposed to High Temperature
Yuexiao HE1 , Weirong HUANG1, Jiangchuan GUO1, Hang CHEN2, Maohao YAN2, Jiao WANG2
Affiliations
  • 1.School of Material Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China
  • 2.School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China
    • Corresponding Author:
    HUANG Weirong (1970-), female, Master, Professor.

    HE Yuexiao (1997-), male, Master candidate. E-mail:

出版时间: 2022-03-20 doi: 10.14062/j.issn.0454-5648.20210785
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研究了掺入6、8、12 mm共聚甲醛纤维及钢纤维的超高性能混凝土（UHPC）高温后残余力学性能及微观结构。结果表明：400 ℃时，仅素混凝土发生爆裂；500 ℃时单掺钢纤维UHPC试件发生爆裂，单掺共聚甲醛纤维及混掺2种纤维的UHPC试件仍能保持相对完整，后者高温残余强度较高。UHPC中共聚甲醛纤维在高温蒸汽养护后，能与基体紧密黏接，165 ℃后纤维熔化形成的孔洞能有效缓解并释放蒸汽压，保持混凝土基体完整，防止其在500 ℃发生高温爆裂。本工作揭示了共聚甲醛纤维在混凝土高温性能方面的作用机理，对其在UHPC中应用有参考价值。

共聚甲醛纤维  /  超高性能混凝土  /  残余力学性能  /  高温性能

The residual mechanical properties and microstructure of UHPC mixed with 6, 8, 12 mm copolymer formaldehyde fiber and steel fiber after high temperature were studied. The test results show that at 400 ℃, only plain concrete bursts. At 500 ℃, the steel fiber UHPC specimen burst, while the UHPC specimen with single copolymer formaldehyde fiber and mixed with two kinds of fiber can still maintain relatively integrity, and the latter has higher residual strength at high temperature. SEM and pore structure show that the copolymer formaldehyde fiber in UHPC can be closely bonded to the matrix after steam curing at high temperature. The pore formed by fiber melting at 165 ℃ can effectively relieve and release steam pressure, keep the concrete matrix intact and prevent it from cracking at 500 ℃. The research results reveal the mechanism of the copolymer formaldehyde fiber on the high temperature performance of concrete, which has great reference value for its application in UHPC.

copolymer formaldehyde fiber  /  ultra-high performance concrete  /  residual mechanical properties  /  high temperature performance
何越骁, 黄维蓉, 郭江川, 陈行, 晏茂豪, 王娇. 共聚甲醛纤维超高性能混凝土高温后残余力学性能. 硅酸盐学报, 2022 , 50 (3) : 839 -848 . DOI: 10.14062/j.issn.0454-5648.20210785
Yuexiao HE, Weirong HUANG, Jiangchuan GUO, Hang CHEN, Maohao YAN, Jiao WANG. Residual Mechanical Properties of Ultra-High Performance Concrete Doped with Copolymer Formaldehyde Fiber Exposed to High Temperature[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (3) : 839 -848 . DOI: 10.14062/j.issn.0454-5648.20210785
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  • 广东省交通运输厅科技项目(科技-2017-02-012)
  • 材料与化工重庆市研究生联合培养基地基金(JDLHPYJD2019002)
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doi: 10.14062/j.issn.0454-5648.20210785
  • 接收时间：2021-09-07
  • 首发时间：2026-10-22
  • 出版时间：2022-03-20
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  • 收稿日期：2021-09-07
  • 修回日期：2021-10-28
基金
广东省交通运输厅科技项目(科技-2017-02-012)
材料与化工重庆市研究生联合培养基地基金(JDLHPYJD2019002)
作者信息
    1．重庆交通大学材料科学与工程学院，重庆 400074
    2．重庆交通大学土木工程学院，重庆 400074

通讯作者:

黄维蓉（1970—），女，硕士，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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