Article(id=1222963540143624770, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221212, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1652025600000, receivedDateStr=2022-05-09, revisedDate=1656691200000, revisedDateStr=2022-07-02, acceptedDate=null, acceptedDateStr=null, onlineDate=1769506829534, onlineDateStr=2026-01-27, pubDate=1682352000000, pubDateStr=2023-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769506829534, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769506829534, creator=13701087609, updateTime=1769506829534, updator=13701087609, issue=Issue{id=1222963536863678929, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='4', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769506828752, creator=13701087609, updateTime=1769508076664, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222968771057279321, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222968771057279322, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=167, endPage=171, ext={EN=ArticleExt(id=1222963541871678054, articleId=1222963540143624770, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Characterization and Time-varying Properties of Grout-enriched Roller Compacted Concrete Slurry Containing Micro-silica Powder, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

To deal with the problems such as grouting pipe blocking and uneven diffusion of grout-enriched roller compacted concrete, the rheology, fluidity, stability, strength and time-varying properties of slurry containing micro-silica powder were studied. The entropy weight ideal point method was used to determine the optimal mix proportion by considering the working characteristics of the slurry and economic cost. The results show that adding micro-silica powder can reduce the bleeding rate and improve the compressive strength. When W/B=0.4, micro-silica powder reduces the yield stress and fluidity, and increases the plastic viscosity. When W/B =0.5-0.7, the yield stress and plastic viscosity increase with the addition of micro-silica powder. The rheology of slurry is related to the thickness of water film. With the increase of water-binder ratio, the effect of micro-silica powder on slurry’s performance gradually weakens. The yield stress increases linearly with time, and the plastic viscosity increases exponentially with time. Based on entropy weight ideal point method, the optimal mixture ratio of different schemes with fixed water-binder ratio can be obtained.

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针对变态混凝土注浆施工中出现浆液堵管、扩散不均等问题,研究了不同硅微粉掺量对浆液的流动性、流变性、稳定性、强度和时变特性的影响。采用熵权理想点法综合考虑浆液工作性及经济性确定最优配合比。试验结果表明,掺加硅微粉可改善浆液泌水率,提高抗压强度。水胶比0.4时,掺硅微粉使浆液屈服应力与流动度减小、塑性粘度增大;水胶比0.5~0.7时,流变参数随硅微粉掺量增加而增大,浆液流变性与水膜厚度呈线性相关。随水胶比增大,硅微粉对浆液性能的影响逐渐减弱。浆液屈服应力随时间呈线性增长趋势,塑性粘度呈指数增长。基于熵权理想点法,可得到固定水胶比下的最优配合比方案。

, correspAuthors=null, authorNote=null, correspAuthorsNote=
孙啸(1986-),男,博士、副教授、硕导,研究方向为工程施工新技术、新材料,E-mail:
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王铫(1998-),男,硕士研究生,研究方向为工程施工新技术与新材料,E-mail:

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王铫(1998-),男,硕士研究生,研究方向为工程施工新技术与新材料,E-mail:

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王铫(1998-),男,硕士研究生,研究方向为工程施工新技术与新材料,E-mail:

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含硅微粉变态混凝土浆液性能影响评价及时变演化规律
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王铫 , 孙啸 , 刘恒瑞 , 路学莹
水电能源科学 | 水利水电工程 2023,41(4): 167-171
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水电能源科学 | 水利水电工程 2023, 41(4): 167-171
含硅微粉变态混凝土浆液性能影响评价及时变演化规律
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王铫 , 孙啸 , 刘恒瑞, 路学莹
作者信息
  • 河海大学水利水电学院,江苏 南京 210098
  • 王铫(1998-),男,硕士研究生,研究方向为工程施工新技术与新材料,E-mail:

通讯作者:

孙啸(1986-),男,博士、副教授、硕导,研究方向为工程施工新技术、新材料,E-mail:
Characterization and Time-varying Properties of Grout-enriched Roller Compacted Concrete Slurry Containing Micro-silica Powder
Yao WANG , Xiao SUN , Heng-rui LIU, Xue-ying LU
Affiliations
  • College of Water Conservancy and Hydropower Engineering, Hohai Univeristy, Nanjing 210098, China
出版时间: 2023-04-25 doi: 10.20040/j.cnki.1000-7709.2023.20221212
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针对变态混凝土注浆施工中出现浆液堵管、扩散不均等问题,研究了不同硅微粉掺量对浆液的流动性、流变性、稳定性、强度和时变特性的影响。采用熵权理想点法综合考虑浆液工作性及经济性确定最优配合比。试验结果表明,掺加硅微粉可改善浆液泌水率,提高抗压强度。水胶比0.4时,掺硅微粉使浆液屈服应力与流动度减小、塑性粘度增大;水胶比0.5~0.7时,流变参数随硅微粉掺量增加而增大,浆液流变性与水膜厚度呈线性相关。随水胶比增大,硅微粉对浆液性能的影响逐渐减弱。浆液屈服应力随时间呈线性增长趋势,塑性粘度呈指数增长。基于熵权理想点法,可得到固定水胶比下的最优配合比方案。

硅微粉  /  工作特性  /  时变特性  /  熵权理想点法  /  最优配合比

To deal with the problems such as grouting pipe blocking and uneven diffusion of grout-enriched roller compacted concrete, the rheology, fluidity, stability, strength and time-varying properties of slurry containing micro-silica powder were studied. The entropy weight ideal point method was used to determine the optimal mix proportion by considering the working characteristics of the slurry and economic cost. The results show that adding micro-silica powder can reduce the bleeding rate and improve the compressive strength. When W/B=0.4, micro-silica powder reduces the yield stress and fluidity, and increases the plastic viscosity. When W/B =0.5-0.7, the yield stress and plastic viscosity increase with the addition of micro-silica powder. The rheology of slurry is related to the thickness of water film. With the increase of water-binder ratio, the effect of micro-silica powder on slurry’s performance gradually weakens. The yield stress increases linearly with time, and the plastic viscosity increases exponentially with time. Based on entropy weight ideal point method, the optimal mixture ratio of different schemes with fixed water-binder ratio can be obtained.

micro-silica powder  /  working characteristics  /  time-varying characteristics  /  entropy weight ideal method  /  optimum mix proportion
王铫, 孙啸, 刘恒瑞, 路学莹. 含硅微粉变态混凝土浆液性能影响评价及时变演化规律. 水电能源科学, 2023 , 41 (4) : 167 -171 . DOI: 10.20040/j.cnki.1000-7709.2023.20221212
Yao WANG, Xiao SUN, Heng-rui LIU, Xue-ying LU. Characterization and Time-varying Properties of Grout-enriched Roller Compacted Concrete Slurry Containing Micro-silica Powder[J]. Water Resources and Power, 2023 , 41 (4) : 167 -171 . DOI: 10.20040/j.cnki.1000-7709.2023.20221212
  • 国家自然科学基金青年基金项目(51909072)
2023年第41卷第4期
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doi: 10.20040/j.cnki.1000-7709.2023.20221212
  • 接收时间:2022-05-09
  • 首发时间:2026-01-27
  • 出版时间:2023-04-25
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  • 收稿日期:2022-05-09
  • 修回日期:2022-07-02
基金
国家自然科学基金青年基金项目(51909072)
作者信息
    河海大学水利水电学院,江苏 南京 210098

通讯作者:

孙啸(1986-),男,博士、副教授、硕导,研究方向为工程施工新技术、新材料,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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