Article(id=1319222810904482472, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319222668956643677, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20220694, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1661443200000, receivedDateStr=2022-08-26, revisedDate=1663776000000, revisedDateStr=2022-09-22, acceptedDate=null, acceptedDateStr=null, onlineDate=1792456828094, onlineDateStr=2026-10-20, pubDate=1684512000000, pubDateStr=2023-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792456828094, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792456828094, creator=13701087609, updateTime=1792456828094, updator=13701087609, issue=Issue{id=1319222668956643677, tenantId=1146029695717560320, journalId=1263187385517883426, year='2023', volume='51', issue='5', pageStart='1091', pageEnd='1372', issueExtLink='null', onlineDate='null', pubDate='1684512000000', pubDateStr='2023-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792456794251, creator='13701087609', updateTime=1792456976356, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319223432827490920, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319222668956643677, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319223432827490921, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319222668956643677, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1344, endPage=1354, ext={EN=ArticleExt(id=1319222811164529321, articleId=1319222810904482472, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Durability Assessment and Life Prediction of Concrete by Entropy Weight Method, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

Wet-dry cycles of fly ash (FA) and cellulose fiber double-doped concrete with sulphate in Nazi Gorge water conservancy pivot project were investigated. The durability value (D), a durability index that can comprehensively reflect the mass, compressive strength and splitting strength of concrete were established based on an entropy weight method. The effects of sulphate mass fraction and fly ash admixture on the D were analyzed. A grey model-back propagation (GM-BP) neural network was constructed to reveal the time-varying law of the D. The results show that the D can reflect the effects of sodium sulphate mass fraction and fly ash admixture on the durability of concrete. At 180 day, the D loss is proportional to sodium sulphate solution mass fraction within 10% (mass fraction). The GM-BP neural network can predict the time-varying law of the D under salt intrusion-wet and dry cycles more accurately than the GM.

, authors=Yuan QIN1, Gao LV1, Ke GUAN2, Heng ZHOU3, authorsList=Yuan QIN, Gao LV, Ke GUAN, Heng ZHOU, authorCompany=null, correspAuthors=null, authorNote=

QIN Yuan (1983-), male, Ph.D., Professor. E-mail:

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以纳子峡水利枢纽工程为背景,进行了粉煤灰、纤维素纤维双掺混凝土硫酸盐干湿循环试验。基于熵权法建立了可以综合反映混凝土质量、抗压强度和抗劈拉强度的耐久性指标耐久性值(D),分析了硫酸钠溶液质量分数和粉煤灰掺量对D值的影响,并构建了Grey Models—Back Propagation(GM-BP)神经网络,用以揭示混凝土D值的时变规律,得到了不同条件下混凝土的预期寿命。结果表明:D值可以反映出硫酸钠溶液质量分数和粉煤灰掺量对混凝土耐久性的影响。180 d时,混凝土D值损失在10%(质量分数)内与硫酸钠溶液质量分数成正比;粉煤灰最佳掺量在10%掺量梯度下为20%;在数据量较小时,GM-BP神经网络相比于GM模型可以更加精确地预测混凝土在盐侵—干湿循环下D值的时变规律。

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覃源(1983—),男,博士,教授。

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基于熵权法的混凝土耐久性评价及寿命预测
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覃源 1 , 吕杲 1 , 关科 2 , 周恒 3
硅酸盐学报 | 研究论文 2023,51(5): 1344-1354
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硅酸盐学报 |研究论文 2023 , 51 (5) : 1344 -1354
基于熵权法的混凝土耐久性评价及寿命预测
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覃源1 , 吕杲1, 关科2, 周恒3
作者信息
  • 1.西安理工大学,省部共建西北旱区生态水利国家重点实验室,西安 710048
  • 2.上海勘测设计研究院有限公司,上海 200434
  • 3.中国电建集团西北勘测设计研究院有限公司,西安 710065
作者简介:

覃源(1983—),男,博士,教授。

Durability Assessment and Life Prediction of Concrete by Entropy Weight Method
Yuan QIN1 , Gao LV1, Ke GUAN2, Heng ZHOU3
Affiliations
  • 1.State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China
  • 2.Shanghai Survey and Design Institute Corporation Limited, Shanghai 100084, China
  • 3.Power China Northwest of Engineering Corporation Limited, Xi'an 710065, China
  • QIN Yuan (1983-), male, Ph.D., Professor. E-mail:

出版时间: 2023-05-20 doi: 10.14062/j.issn.0454-5648.20220694
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以纳子峡水利枢纽工程为背景,进行了粉煤灰、纤维素纤维双掺混凝土硫酸盐干湿循环试验。基于熵权法建立了可以综合反映混凝土质量、抗压强度和抗劈拉强度的耐久性指标耐久性值(D),分析了硫酸钠溶液质量分数和粉煤灰掺量对D值的影响,并构建了Grey Models—Back Propagation(GM-BP)神经网络,用以揭示混凝土D值的时变规律,得到了不同条件下混凝土的预期寿命。结果表明:D值可以反映出硫酸钠溶液质量分数和粉煤灰掺量对混凝土耐久性的影响。180 d时,混凝土D值损失在10%(质量分数)内与硫酸钠溶液质量分数成正比;粉煤灰最佳掺量在10%掺量梯度下为20%;在数据量较小时,GM-BP神经网络相比于GM模型可以更加精确地预测混凝土在盐侵—干湿循环下D值的时变规律。

混凝土  /  硫酸盐侵蚀  /  耐久性  /  熵权法  /  寿命预测

Wet-dry cycles of fly ash (FA) and cellulose fiber double-doped concrete with sulphate in Nazi Gorge water conservancy pivot project were investigated. The durability value (D), a durability index that can comprehensively reflect the mass, compressive strength and splitting strength of concrete were established based on an entropy weight method. The effects of sulphate mass fraction and fly ash admixture on the D were analyzed. A grey model-back propagation (GM-BP) neural network was constructed to reveal the time-varying law of the D. The results show that the D can reflect the effects of sodium sulphate mass fraction and fly ash admixture on the durability of concrete. At 180 day, the D loss is proportional to sodium sulphate solution mass fraction within 10% (mass fraction). The GM-BP neural network can predict the time-varying law of the D under salt intrusion-wet and dry cycles more accurately than the GM.

concrete  /  sulphate attack  /  durability  /  entropy weight method  /  life prediction
覃源, 吕杲, 关科, 周恒. 基于熵权法的混凝土耐久性评价及寿命预测. 硅酸盐学报, 2023 , 51 (5) : 1344 -1354 . DOI: 10.14062/j.issn.0454-5648.20220694
Yuan QIN, Gao LV, Ke GUAN, Heng ZHOU. Durability Assessment and Life Prediction of Concrete by Entropy Weight Method[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (5) : 1344 -1354 . DOI: 10.14062/j.issn.0454-5648.20220694
  • 国家自然科学基金项目(52079109)
  • 国家自然科学基金项目(52279139)
  • 陕西省科技创新团队(2022TD-01)
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2023年第51卷第5期
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doi: 10.14062/j.issn.0454-5648.20220694
  • 接收时间:2022-08-26
  • 首发时间:2026-10-20
  • 出版时间:2023-05-20
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  • 收稿日期:2022-08-26
  • 修回日期:2022-09-22
基金
国家自然科学基金项目(52079109)
国家自然科学基金项目(52279139)
陕西省科技创新团队(2022TD-01)
作者信息
    1.西安理工大学,省部共建西北旱区生态水利国家重点实验室,西安 710048
    2.上海勘测设计研究院有限公司,上海 200434
    3.中国电建集团西北勘测设计研究院有限公司,西安 710065
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https://castjournals.cast.org.cn/joweb/gsyxb/CN/10.14062/j.issn.0454-5648.20220694
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2种不同金属材料的力学参数
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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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