Article(id=1156908299879801722, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156908295593223005, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2308222, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1697990400000, receivedDateStr=2023-10-23, revisedDate=1721318400000, revisedDateStr=2024-07-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1753758033008, onlineDateStr=2025-07-29, pubDate=1736265600000, pubDateStr=2025-01-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753758033008, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753758033008, creator=13701087609, updateTime=1753758033008, updator=13701087609, issue=Issue{id=1156908295593223005, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='1', pageStart='1', pageEnd='438', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753758031985, creator=13701087609, updateTime=1765425680602, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1205845960933049001, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156908295593223005, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1205845960933049002, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156908295593223005, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=329, endPage=338, ext={EN=ArticleExt(id=1156908300655747966, articleId=1156908299879801722, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Microscopic Simulation of Chloride Ion Transport Behavior in Recycled Concrete under Dry-Wet Cycles, columnId=1156262729917780302, journalTitle=Science Technology and Engineering, columnName=Papers·Architectural Science, runingTitle=null, highlight=null, articleAbstract=
Based on Monte Carlo method, Python and Abaqus interface were used for secondary development, and an interfacial transition zone was generated to distinguish between natural coarse aggregates and new and old interfacial transition zone(ITZ) and recycled aggregate concrete (RAC) 2D meso-five phase model of new and old mortar. An improved moisture-chloride ion coupling model under dry-wet cycles was proposed, and the computational results of this model were compared and validated against physical experiments, with good agreement. This model was then applied to analyze the effects of dry-wet cycle periods, ITZ permeability, water-cement ratio, and natural aggregate volume fraction on chloride ion transport properties. The numerical results show that as the number of dry-wet cycles increases, the diffusion depth and concentration of chloride ions in RAC also increases. When the ratio of ITZ diffusion coefficient to the new mortar diffusion coefficient increases, the chloride ion concentration in the diffusion region increases significantly, especially at the front end of the diffusion zone. In addition, there is a positive correlation between RAC materials with different water-cement ratios and chloride ion transport capacity, with little variation in chloride ion transport performance within the high water-cement ratio range. Finally, the volume fraction of recycled aggregates has a significant impact on the chloride ion permeability of RAC, indicating that the ITZ and new and old mortar have an important influence on the transport of chloride ions.
, correspAuthors=Cheng ZHAO, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Xi-xuan BAI, Ding-yang LU, Cheng ZHAO, Qiao WANG), CN=ArticleExt(id=1156908401272906401, articleId=1156908299879801722, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=干湿循环下再生混凝土氯离子传输行为的细观模拟, columnId=1156262730517565784, journalTitle=科学技术与工程, columnName=论文·建筑科学, runingTitle=null, highlight=null, articleAbstract=
基于蒙特卡洛法,利用Python与Abaqus接口进行二次开发,生成区分天然粗骨料,新、旧界面过渡区(interfacial transition zone,ITZ)和新、旧砂浆的再生混凝土(recycled aggregate concrete,RAC)二维细观五相模型。提出改进的干湿循环下水分-氯离子耦合模型,并将该模型的计算结果与物理试验进行对比验证,结果吻合较好。将该模型应用于分析干湿循环周期、ITZ渗透率、水胶比和天然骨料体积分数对氯离子传输性能的影响规律。结果表明,在干湿循环次数增加的情况下,RAC中氯离子的扩散深度和浓度也会随之增加。当ITZ扩散系数与新砂浆扩散系数的比值增大时,氯离子的扩散区域中氯离子浓度增加明显,尤其是在扩散区的前端位置氯离子浓度增加最为显著。此外,不同水灰比的RAC材料与氯离子的传输能力之间存在正相关关系,高水灰比范围内氯离子传输性能变化较小。最后,再生骨料体积分数对RAC的抗氯离子渗透性能产生显著影响,这说明ITZ和新旧砂浆对氯离子的传输具有重要影响。
, correspAuthors=赵程, authorNote=null, correspAuthorsNote=
* 赵程(1991—),男,汉族,湖北荆州人,博士,讲师。研究方向:混凝土结构耐久性,大体积混凝土温度控制,水泥基材料固碳与固废循环利用。E-mail:
zc2021@wit.edu.cn。
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白希选(1986—),男,汉族,河南濮阳人,博士,副教授。研究方向:再生混凝土。E-mail:baixx87@163.com。
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白希选(1986—),男,汉族,河南濮阳人,博士,副教授。研究方向:再生混凝土。E-mail:baixx87@163.com。
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Journal of Chinese Society for Corrosion and Protection,
2023,
43(5): 1111-1118., articleTitle=Multi-phase mesoscopic numerical simulation of chloride ion diffusion in recycled aggregate concrete, refAbstract=null)], funds=[Fund(id=1205908628104610313, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, awardId=Q20221514, language=CN, fundingSource=湖北省教育厅科学研究计划(Q20221514), fundOrder=null, country=null), Fund(id=1205908628171719178, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, awardId=2022022202015022, language=CN, fundingSource=武汉重点研发计划(2022022202015022), fundOrder=null, country=null), Fund(id=1205908628247216651, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, awardId=2023020402010593, language=CN, fundingSource=武汉重点研发计划(2023020402010593), fundOrder=null, country=null), Fund(id=1205908628326908428, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, awardId=2023020201020436, language=CN, fundingSource=武汉市知识创新专项曙光计划(2023020201020436), fundOrder=null, country=null), Fund(id=1205908628385628685, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, awardId=CX2022204, language=CN, fundingSource=武汉工程大学研究生教育创新基金(CX2022204), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1205908623398601168, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, xref=null, ext=[AuthorCompanyExt(id=1205908623406989777, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, companyId=1205908623398601168, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. School of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan 430074, China), AuthorCompanyExt(id=1205908623415378386, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, companyId=1205908623398601168, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.武汉工程大学土木工程与建筑学院, 武汉 430074)]), AuthorCompany(id=1205908623478292947, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, xref=null, ext=[AuthorCompanyExt(id=1205908623486681556, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, companyId=1205908623478292947, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430072, China), AuthorCompanyExt(id=1205908623490875861, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, companyId=1205908623478292947, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.武汉大学水利水电学院, 武汉 430072)])], figs=[ArticleFig(id=1205908625474781687, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=EN, label=Fig.1, caption=
Five-phase structure schematic diagram of RAC, figureFileSmall=KpbwIHJffzeJhPc6yb5fsg==, figureFileBig=5uQNgDVaDhLiClOrEWwtYA==, tableContent=null), ArticleFig(id=1205908625546084856, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=CN, label=图1, caption=
RAC五相结构示意图, figureFileSmall=KpbwIHJffzeJhPc6yb5fsg==, figureFileBig=5uQNgDVaDhLiClOrEWwtYA==, tableContent=null), ArticleFig(id=1205908625659331065, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=EN, label=Fig.2, caption=
RAC free triangular mesh partition, figureFileSmall=3H0PuRYqitS+XyDRzvY8NA==, figureFileBig=n9U7mJSe313B9aMPB84Vrg==, tableContent=null), ArticleFig(id=1205908625747411450, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=CN, label=图2, caption=
RAC自由三角形网格划分, figureFileSmall=3H0PuRYqitS+XyDRzvY8NA==, figureFileBig=n9U7mJSe313B9aMPB84Vrg==, tableContent=null), ArticleFig(id=1205908625814520315, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=EN, label=Fig.3, caption=
The numerical analysis simulation results of chloride ion diffusion under dry-wet cycling conditions compared with experimental data, figureFileSmall=ifqMZt8l6wln92/0awBinQ==, figureFileBig=zkuV+V2/d97VHcVmTGsqwQ==, tableContent=null), ArticleFig(id=1205908626993119740, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=CN, label=图3, caption=
干湿循环作用下氯离子扩散过程数值分析模拟结果与试验数据对比, figureFileSmall=ifqMZt8l6wln92/0awBinQ==, figureFileBig=zkuV+V2/d97VHcVmTGsqwQ==, tableContent=null), ArticleFig(id=1205908627068617213, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=EN, label=Fig.4, caption=
Chloride ion concentration distribution in recycled concrete under different dry-wet cycling periods, figureFileSmall=D51E4fSAiGOkt2QorblvrA==, figureFileBig=qlTN8Jas+vSli1x9CDGWfA==, tableContent=null), ArticleFig(id=1205908627181863422, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=CN, label=图4, caption=
不同干湿循环周期下再生混凝土中氯离子浓度分布, figureFileSmall=D51E4fSAiGOkt2QorblvrA==, figureFileBig=qlTN8Jas+vSli1x9CDGWfA==, tableContent=null), ArticleFig(id=1205908627248972287, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=EN, label=Fig.5, caption=
Chloride ion concentration in erosion cross-sections under different dry-wet cycles, figureFileSmall=Qd4oYzlf3FicwFJzmw+obQ==, figureFileBig=RGD71jMDPYmmV+ezzKxSdg==, tableContent=null), ArticleFig(id=1205908627341246976, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=CN, label=图5, caption=
不同干湿循环下侵蚀截面氯离子浓度, figureFileSmall=Qd4oYzlf3FicwFJzmw+obQ==, figureFileBig=RGD71jMDPYmmV+ezzKxSdg==, tableContent=null), ArticleFig(id=1205908627408355841, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=EN, label=Fig.6, caption=
Chloride ion concentration-depth profile in regenerated concrete with different ITZ relative diffusion coefficients under wet-dry cycling conditions, figureFileSmall=Oe59M3wzduA9LpLbHVF6Ew==, figureFileBig=RkwzykzSQRt690GCZG3NoQ==, tableContent=null), ArticleFig(id=1205908627475464706, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=CN, label=图6, caption=
干湿循环作用下不同ITZ渗透率的再生混凝土中氯离子浓度-深度曲线, figureFileSmall=Oe59M3wzduA9LpLbHVF6Ew==, figureFileBig=RkwzykzSQRt690GCZG3NoQ==, tableContent=null), ArticleFig(id=1205908627609682435, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=EN, label=Fig.7, caption=
Chloride ion concentration-depth curve in regenerated concrete with different water-cement ratios under wet-dry cycling, figureFileSmall=cz4q37HHOh/7lCw3JedSPQ==, figureFileBig=yR/lufGfjgL8zDiko2a7mg==, tableContent=null), ArticleFig(id=1205908627664208388, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=CN, label=图7, caption=
干湿循环作用下不同水灰比的再生混凝土中氯离子浓度-深度曲线, figureFileSmall=cz4q37HHOh/7lCw3JedSPQ==, figureFileBig=yR/lufGfjgL8zDiko2a7mg==, tableContent=null), ArticleFig(id=1205908627735511557, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=EN, label=Fig.8, caption=
Chloride ion concentration distribution in recycled concrete with different volume fractions of recycled aggregates under dry-wet cycling action, figureFileSmall=vdero5dEQ1Ip6/CRUSs1xw==, figureFileBig=WBNpSnYsHFDsiniupifDtQ==, tableContent=null), ArticleFig(id=1205908627802620422, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=CN, label=图8, caption=
干湿循环作用下不同再生骨料体积分数的再生混凝土中氯离子浓度分布, figureFileSmall=vdero5dEQ1Ip6/CRUSs1xw==, figureFileBig=WBNpSnYsHFDsiniupifDtQ==, tableContent=null), ArticleFig(id=1205908627869729287, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=EN, label=Table 1, caption=
Coupled model calculation parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 参数值 | 含义 |
| tref[27] | 28 d | 参考养护时间 |
| Tref[27] | 273.15 K | 参考温度 |
| W/B | 0.4 | 水灰比 |
| N | 14 | 干湿循环次数 |
| Cs | 0.5 | 边界氯化钠溶液浓度 |
| Dp | 1.07×10-10 m2/s | 氯化钠在孔隙溶液中的扩散系数 |
| m | 0.2 | 时间衰减指数 |
| θm[28] | 0.95 | 湿润过程边界水饱和度 |
| θd[28] | 0.7 | 干燥过程边界水饱和度 |
| θ0 | 0.7 | RAC初始饱和度 |
| Cf0 | 0 | RAC初始氯离子浓度 |
), ArticleFig(id=1205908627949421064, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156908299879801722, language=CN, label=表1, caption=
耦合模型计算参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 参数值 | 含义 |
| tref[27] | 28 d | 参考养护时间 |
| Tref[27] | 273.15 K | 参考温度 |
| W/B | 0.4 | 水灰比 |
| N | 14 | 干湿循环次数 |
| Cs | 0.5 | 边界氯化钠溶液浓度 |
| Dp | 1.07×10-10 m2/s | 氯化钠在孔隙溶液中的扩散系数 |
| m | 0.2 | 时间衰减指数 |
| θm[28] | 0.95 | 湿润过程边界水饱和度 |
| θd[28] | 0.7 | 干燥过程边界水饱和度 |
| θ0 | 0.7 | RAC初始饱和度 |
| Cf0 | 0 | RAC初始氯离子浓度 |
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