Article(id=1319236728318185685, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236705027207343, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20220126, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1645632000000, receivedDateStr=2022-02-24, revisedDate=1649520000000, revisedDateStr=2022-04-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1792460146263, onlineDateStr=2026-10-20, pubDate=1666195200000, pubDateStr=2022-10-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792460146263, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792460146263, creator=13701087609, updateTime=1792460146263, updator=13701087609, issue=Issue{id=1319236705027207343, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='10', pageStart='2579', pageEnd='2808', issueExtLink='null', onlineDate='null', pubDate='1666195200000', pubDateStr='2022-10-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792460140711, creator='13701087609', updateTime=1792460672919, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319238937323884737, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236705027207343, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319238937323884738, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236705027207343, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2701, endPage=2711, ext={EN=ArticleExt(id=1319236728838279382, articleId=1319236728318185685, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Water Permeability of Mortar Investigated by Partial Bounce-Back Lattice Boltzmann Method, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

To clarify the mechanism of water transport in mortar, a three-phase model consisting of fine aggregate-interfacial transition zone (ITZ) -cement paste was developed to represent mortar, and then the water transport process in mortar was simulated by a partial bounce-back lattice Boltzmann method (PBB-LBM). The influences of aggregate volume fraction, the ITZ's thickness and pore structure on the water permeability of mortar were evaluated. The results show that mortar's water permeability declines at an increased aggregate content and it is always below cement paste's water permeability at a thin thickness of ITZ and a low porosity. Once the thickness of ITZ exceeds 150 μm or its effective porosity is two times greater than that of cement paste, the permeability of mortar is close to or even above the matrix's water permeability. This is attributed to the competitions among the ITZ effect, aggregate dilution effect and tortuous transport path in mortar.

, authors=Kai LI1, 2, Li XU1, 2, Lulu YANG1, 2, Caijun SHI1, 2, authorsList=Kai LI, Li XU, Lulu YANG, Caijun SHI, authorCompany=null, correspAuthors=Caijun SHI, authorNote=

LI Kai (1988-), male, Ph.D., Associate Professor. E-mail:

, correspAuthorsNote=
SHI Caijun (1963-), male, Ph.D., Professor. E-mail:
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为了揭示砂浆的水分传输机制,构建了细骨料-界面过渡区-水泥浆体的砂浆三相模型,采用部分反弹格子Boltzmann方法模拟了水分在砂浆内部的传输过程,研究了骨料体积分数、界面过渡区厚度及孔隙结构对砂浆水分渗透系数的影响。结果表明:当界面过渡区厚度较小、孔隙率较低时,砂浆的水分渗透系数随骨料含量的增大而降低且始终低于水泥浆体的水分渗透系数;当界面过渡区厚度增至150 μm或有效孔隙率超过水泥基体2倍时,砂浆的水分渗透系数会接近甚至超过水泥浆体的水分渗透系数。界面过渡区效应、骨料稀释作用以及迂曲传输路径的相互竞争是产生上述现象的根本原因。

, authors=李凯1, 2, 许立1, 2, 杨璐璐1, 2, 史才军1, 2, authorsList=李凯, 许立, 杨璐璐, 史才军, authorCompany=null, correspAuthors=史才军, authorNote=

李凯(1988—),男,博士,副教授。

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史才军(1963—),男,博士,教授。
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基于部分反弹格子Boltzmann方法研究砂浆水渗透性能
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李凯 1, 2 , 许立 1, 2 , 杨璐璐 1, 2 , 史才军 1, 2
硅酸盐学报 | 研究论文 2022,50(10): 2701-2711
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硅酸盐学报 |研究论文 2022 , 50 (10) : 2701 -2711
基于部分反弹格子Boltzmann方法研究砂浆水渗透性能
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李凯1, 2 , 许立1, 2, 杨璐璐1, 2, 史才军1, 2
作者信息
  • 1.湖南大学土木工程学院,绿色先进土木工程材料及应用技术湖南省重点实验室,长沙 410082
  • 2.湖南省绿色先进土木工程材料国际科技创新合作基地,长沙 410082
通讯作者:
史才军(1963—),男,博士,教授。
作者简介:

李凯(1988—),男,博士,副教授。

Water Permeability of Mortar Investigated by Partial Bounce-Back Lattice Boltzmann Method
Kai LI1, 2 , Li XU1, 2, Lulu YANG1, 2, Caijun SHI1, 2
Affiliations
  • 1.Key Laboratory for Green and Advanced Civil Engineering Materials and Application Technology of Hunan Province, College of Civil Engineering, Hunan University, Changsha 410082, China
  • 2.International Science and Technology Innovation Center for Green and Advanced Civil Engineering Materials of Hunan Province, Changsha 410082, China
  • Corresponding Author:
    SHI Caijun (1963-), male, Ph.D., Professor. E-mail:

    LI Kai (1988-), male, Ph.D., Associate Professor. E-mail:

出版时间: 2022-10-20 doi: 10.14062/j.issn.0454-5648.20220126
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为了揭示砂浆的水分传输机制,构建了细骨料-界面过渡区-水泥浆体的砂浆三相模型,采用部分反弹格子Boltzmann方法模拟了水分在砂浆内部的传输过程,研究了骨料体积分数、界面过渡区厚度及孔隙结构对砂浆水分渗透系数的影响。结果表明:当界面过渡区厚度较小、孔隙率较低时,砂浆的水分渗透系数随骨料含量的增大而降低且始终低于水泥浆体的水分渗透系数;当界面过渡区厚度增至150 μm或有效孔隙率超过水泥基体2倍时,砂浆的水分渗透系数会接近甚至超过水泥浆体的水分渗透系数。界面过渡区效应、骨料稀释作用以及迂曲传输路径的相互竞争是产生上述现象的根本原因。

砂浆  /  界面过渡区  /  格子Boltzmann方法  /  水分渗透系数

To clarify the mechanism of water transport in mortar, a three-phase model consisting of fine aggregate-interfacial transition zone (ITZ) -cement paste was developed to represent mortar, and then the water transport process in mortar was simulated by a partial bounce-back lattice Boltzmann method (PBB-LBM). The influences of aggregate volume fraction, the ITZ's thickness and pore structure on the water permeability of mortar were evaluated. The results show that mortar's water permeability declines at an increased aggregate content and it is always below cement paste's water permeability at a thin thickness of ITZ and a low porosity. Once the thickness of ITZ exceeds 150 μm or its effective porosity is two times greater than that of cement paste, the permeability of mortar is close to or even above the matrix's water permeability. This is attributed to the competitions among the ITZ effect, aggregate dilution effect and tortuous transport path in mortar.

mortar  /  interfacial transition zone  /  lattice Boltzmann method  /  water permeability
李凯, 许立, 杨璐璐, 史才军. 基于部分反弹格子Boltzmann方法研究砂浆水渗透性能. 硅酸盐学报, 2022 , 50 (10) : 2701 -2711 . DOI: 10.14062/j.issn.0454-5648.20220126
Kai LI, Li XU, Lulu YANG, Caijun SHI. Water Permeability of Mortar Investigated by Partial Bounce-Back Lattice Boltzmann Method[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (10) : 2701 -2711 . DOI: 10.14062/j.issn.0454-5648.20220126
  • 国家自然科学基金青年科学基金项目(51908207)
  • 国家自然科学基金面上项目(52178205)
  • 湖南省自然科学基金青年基金项目(2021JJ40075)
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2022年第50卷第10期
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doi: 10.14062/j.issn.0454-5648.20220126
  • 接收时间:2022-02-24
  • 首发时间:2026-10-20
  • 出版时间:2022-10-20
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  • 收稿日期:2022-02-24
  • 修回日期:2022-04-10
基金
国家自然科学基金青年科学基金项目(51908207)
国家自然科学基金面上项目(52178205)
湖南省自然科学基金青年基金项目(2021JJ40075)
作者信息
    1.湖南大学土木工程学院,绿色先进土木工程材料及应用技术湖南省重点实验室,长沙 410082
    2.湖南省绿色先进土木工程材料国际科技创新合作基地,长沙 410082

通讯作者:

史才军(1963—),男,博士,教授。
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2种不同金属材料的力学参数
科
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属数
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genus
种数
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species
占总种数比例
Percentage of
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属
Genus
种数
Number of
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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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