Article(id=1245390006714479581, tenantId=1146029695717560320, journalId=1241701559352995854, issueId=1245390004252426256, articleNumber=null, orderNo=null, doi=10.13197/j.eeed.2024.0308, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1676304000000, receivedDateStr=2023-02-14, revisedDate=1677945600000, revisedDateStr=2023-03-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1774853715828, onlineDateStr=2026-03-30, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774853715828, onlineIssueDateStr=2026-03-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774853715828, creator=13701087609, updateTime=1774853715828, updator=13701087609, issue=Issue{id=1245390004252426256, tenantId=1146029695717560320, journalId=1241701559352995854, year='2024', volume='44', issue='3', pageStart='1', pageEnd='230', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774853715241, creator=13701087609, updateTime=1774854338522, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1245392618545332491, tenantId=1146029695717560320, journalId=1241701559352995854, issueId=1245390004252426256, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1245392618545332492, tenantId=1146029695717560320, journalId=1241701559352995854, issueId=1245390004252426256, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=84, endPage=95, ext={EN=ArticleExt(id=1245390006970332126, articleId=1245390006714479581, tenantId=1146029695717560320, journalId=1241701559352995854, language=EN, title=Study on flexural behavior of seawater sea-sand concrete filled plastic-lined steel tube composite members, columnId=null, journalTitle=Earthquake Engineering and Engineering Dynamics, columnName=null, runingTitle=null, highlight=null, articleAbstract=
A total of 12 seawater sea-sand concrete filled plastic-lined steel tube (SSC-PLST) specimens were tested by flexural loading and finite element modeling. The bending properties of the composite members and the influence of the plastic lining layer on the bending capacity of the composite members were studied. The effect of plastic lining on the load-carrying capacity of SSC-PLST members was investigated. The results show that, the failure pattern of SSC-PLST specimens is similar to that of conventional concrete filled steel tube (CFST) members, namely, the tension zone of steel tube yields and the concrete produces fine and dense flexural cracks, and the compression zone of steel tube buckles and the concrete at the corresponding position is crushed. The bending moment-deflection curve of SSC-PLST members is characterized by three stages, showing good load-carrying and deformation capacities. The contact stress between different components of SSC-PLST member is relatively small and unevenly distributed. The influence of plastic lining on the flexural capacity of SSC-PLST member is mainly related to the thickness of plastic layer, but is less affected by the strength of steel or concrete. Finally, a simplified calculation formula of load-carrying capacity for SSC-PLST flexural members is proposed, which can provide reference for the engineering application of this structural member.
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对12根衬塑钢管海水海砂混凝土(seawater sea-sand concrete filled plastic-lined steel tube,SSC-PLST)试件进行了受弯加载试验和有限元建模分析,研究该类构件的受弯性能及内衬塑料层对组合构件承载变形能力的影响规律。研究结果表明:SSC-PLST受弯构件的破坏形态具体表现为受压区钢管外凸屈曲、对应位置混凝土被压碎,受拉区钢管屈服、核心混凝土弯曲裂缝细而密,与普通钢管混凝土类似;试件的弯矩-挠度曲线呈三阶段特征,表现出良好的承载与变形性能。SSC-PLST构件不同部分之间的接触应力较小,且分布不均匀。内衬塑料对SSC-PLST构件受弯承载力的影响程度主要与塑料层厚度有关,受钢材强度和混凝土强度的影响较小。最终提出了SSC-PLST受弯构件承载力的简化计算公式,可为该结构构件的工程应用提供参考。
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1.School of Civil Engineering & Architecture, Xiamen University of Technology, Xiamen 361024, China
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1.厦门理工学院 土木工程与建筑学院,福建 厦门 361024
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吴毅彬(1982—),男,教授,博士,主要从事工程抗震与防灾、结构鉴定与加固研究。E-mail:53686090@qq.com
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吴毅彬(1982—),男,教授,博士,主要从事工程抗震与防灾、结构鉴定与加固研究。E-mail:53686090@qq.com
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Cross section of SSC-PLST member, figureFileSmall=CsujnjZAlB6p1qz9jVZA0g==, figureFileBig=HihPavTyTrCPLwIorw0/1g==, tableContent=null), ArticleFig(id=1245390015157612830, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图1, caption=
SSC-PLST构件截面示意, figureFileSmall=CsujnjZAlB6p1qz9jVZA0g==, figureFileBig=HihPavTyTrCPLwIorw0/1g==, tableContent=null), ArticleFig(id=1245390015405076787, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 2, caption=
Test setup, figureFileSmall=3h/ZvIIN8gocToobNb2Gng==, figureFileBig=9XvaS8hwPXvpK6P+fQE9dw==, tableContent=null), ArticleFig(id=1245390015497351479, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图2, caption=
试验装置, figureFileSmall=3h/ZvIIN8gocToobNb2Gng==, figureFileBig=9XvaS8hwPXvpK6P+fQE9dw==, tableContent=null), ArticleFig(id=1245390015593820479, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 3, caption=
Failure mode of specimens, figureFileSmall=UCacSSDSvfFKt2UJQFLkdA==, figureFileBig=N4bxK65b4G+wpqr2gb0cGg==, tableContent=null), ArticleFig(id=1245390015707066697, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图3, caption=
试件破坏形态, figureFileSmall=UCacSSDSvfFKt2UJQFLkdA==, figureFileBig=N4bxK65b4G+wpqr2gb0cGg==, tableContent=null), ArticleFig(id=1245390015811924309, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 4, caption=
Distribution of concrete cracks, figureFileSmall=lj6pLgnfa3x4r6UQjSZAMg==, figureFileBig=7QrJybcZEhpf1xIew4HjrA==, tableContent=null), ArticleFig(id=1245390015920976219, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图4, caption=
混凝土裂缝分布, figureFileSmall=lj6pLgnfa3x4r6UQjSZAMg==, figureFileBig=7QrJybcZEhpf1xIew4HjrA==, tableContent=null), ArticleFig(id=1245390016025833829, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 5, caption=
M-μm relation curves, figureFileSmall=Hm9HmxQPq1oyLwMLTR0vpw==, figureFileBig=7otuyNH0px57GhCtsMTLnw==, tableContent=null), ArticleFig(id=1245390016147468654, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图5, caption=
M-μm关系曲线, figureFileSmall=Hm9HmxQPq1oyLwMLTR0vpw==, figureFileBig=7otuyNH0px57GhCtsMTLnw==, tableContent=null), ArticleFig(id=1245390016290075001, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 6, caption=
M-ε relation curves, figureFileSmall=iO9K+XFzm65m3u6rygC6Jg==, figureFileBig=x/RGeq/175f+Xof5OS5L+g==, tableContent=null), ArticleFig(id=1245390016390738304, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图6, caption=
M-ε关系曲线, figureFileSmall=iO9K+XFzm65m3u6rygC6Jg==, figureFileBig=x/RGeq/175f+Xof5OS5L+g==, tableContent=null), ArticleFig(id=1245390016483012999, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 7, caption=
Strain distribution at mid-span cross section, figureFileSmall=o0vgWt2Xd5g+v/HfU0SI6g==, figureFileBig=Cp4JIMFWIo0igLSr76O/dA==, tableContent=null), ArticleFig(id=1245390016575287693, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图7, caption=
跨中截面纵向应变分布, figureFileSmall=o0vgWt2Xd5g+v/HfU0SI6g==, figureFileBig=Cp4JIMFWIo0igLSr76O/dA==, tableContent=null), ArticleFig(id=1245390016684339607, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 8, caption=
Comparison of M-μm curves with different fcu, figureFileSmall=iUjhvgd0+s3295HDessk5Q==, figureFileBig=9+Rf9LtE512OVJg4xvVNSA==, tableContent=null), ArticleFig(id=1245390016797585825, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图8, caption=
不同fcu时M-μm曲线对比, figureFileSmall=iUjhvgd0+s3295HDessk5Q==, figureFileBig=9+Rf9LtE512OVJg4xvVNSA==, tableContent=null), ArticleFig(id=1245390016877277610, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 9, caption=
Influence of fcu on Mu, figureFileSmall=W7T5vLsNwe4Zv+x5V5MPKA==, figureFileBig=iy6eA6Z58HC9ODu4h96WwA==, tableContent=null), ArticleFig(id=1245390016973746612, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图9, caption=
fcu对Mu的影响, figureFileSmall=W7T5vLsNwe4Zv+x5V5MPKA==, figureFileBig=iy6eA6Z58HC9ODu4h96WwA==, tableContent=null), ArticleFig(id=1245390017057632699, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 10, caption=
Comparison of deformation characteristics, figureFileSmall=9RD5VKS1JL3u5kmUYU8Zpw==, figureFileBig=EA0Erp5RQyUtGL5AMGAfEg==, tableContent=null), ArticleFig(id=1245390017183461830, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图10, caption=
变形形态对比, figureFileSmall=9RD5VKS1JL3u5kmUYU8Zpw==, figureFileBig=EA0Erp5RQyUtGL5AMGAfEg==, tableContent=null), ArticleFig(id=1245390017330262479, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 11, caption=
Tube-concrete contact stress, figureFileSmall=2cFg1/ClsWoycglxd1e0NQ==, figureFileBig=1swMDqrkKe+sYK+iEWEFfw==, tableContent=null), ArticleFig(id=1245390017418342870, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图11, caption=
钢管-混凝土接触应力, figureFileSmall=2cFg1/ClsWoycglxd1e0NQ==, figureFileBig=1swMDqrkKe+sYK+iEWEFfw==, tableContent=null), ArticleFig(id=1245390017523200479, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 12, caption=
Comparison of M-μm curves with different fy, figureFileSmall=tnN/NGBBhPTGhlsLRqNjbQ==, figureFileBig=eOdFAmZxp4fsWR8C0Sb8CQ==, tableContent=null), ArticleFig(id=1245390017632252393, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图12, caption=
不同fy时M-μm曲线对比, figureFileSmall=tnN/NGBBhPTGhlsLRqNjbQ==, figureFileBig=eOdFAmZxp4fsWR8C0Sb8CQ==, tableContent=null), ArticleFig(id=1245390017707749868, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 13, caption=
Mu-fy relation curves, figureFileSmall=9NlXNyazoHvG+mVRxpAi7g==, figureFileBig=yYqnQtexb4fo2cR7aLEY2g==, tableContent=null), ArticleFig(id=1245390017812607481, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图13, caption=
Mu-fy关系曲线, figureFileSmall=9NlXNyazoHvG+mVRxpAi7g==, figureFileBig=yYqnQtexb4fo2cR7aLEY2g==, tableContent=null), ArticleFig(id=1245390017930047999, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 14, caption=
Relationship between Mu/Mu0 and fy, figureFileSmall=6eJuKckYBxXl++7QPiEg+w==, figureFileBig=2X/9jnEwn1rIzraPSarbnw==, tableContent=null), ArticleFig(id=1245390018051682819, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图14, caption=
(Mu/Mu0)-fy关系, figureFileSmall=6eJuKckYBxXl++7QPiEg+w==, figureFileBig=2X/9jnEwn1rIzraPSarbnw==, tableContent=null), ArticleFig(id=1245390018194289164, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 15, caption=
Comparison of M-μm curves with different fcu, figureFileSmall=wfu11BdhaaSdFAP6I/6u6g==, figureFileBig=W+y4P0hVzYbwO2QHtC7/wQ==, tableContent=null), ArticleFig(id=1245390018303341073, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图15, caption=
不同fcu时M-μm曲线对比, figureFileSmall=wfu11BdhaaSdFAP6I/6u6g==, figureFileBig=W+y4P0hVzYbwO2QHtC7/wQ==, tableContent=null), ArticleFig(id=1245390018420781586, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 16, caption=
Mu-fcu relation curves, figureFileSmall=SHqcXWgVqfEFWDCzU4B72g==, figureFileBig=IEtx7kFH2ub/d9B92n6sQw==, tableContent=null), ArticleFig(id=1245390018508861976, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图16, caption=
Mu-fcu关系曲线, figureFileSmall=SHqcXWgVqfEFWDCzU4B72g==, figureFileBig=IEtx7kFH2ub/d9B92n6sQw==, tableContent=null), ArticleFig(id=1245390018622108190, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 17, caption=
Relationship between Mu/Mu0 and fcu, figureFileSmall=c4SM16y9v+o3tc67yud/dA==, figureFileBig=dh08E6/EQ4FmwHKNTHZu5A==, tableContent=null), ArticleFig(id=1245390018743743011, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图17, caption=
Mu/Mu0-fcu关系, figureFileSmall=c4SM16y9v+o3tc67yud/dA==, figureFileBig=dh08E6/EQ4FmwHKNTHZu5A==, tableContent=null), ArticleFig(id=1245390018856989226, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Fig. 18, caption=
Relationship between Mu/Mu0 and tp/D, figureFileSmall=oc+kLG+u5FkqSQ76kavtLw==, figureFileBig=+eiQzGJEa8E7bK7Zxq/csQ==, tableContent=null), ArticleFig(id=1245390018961846835, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=图18, caption=
Mu/Mu0与tp/D的关系, figureFileSmall=oc+kLG+u5FkqSQ76kavtLw==, figureFileBig=+eiQzGJEa8E7bK7Zxq/csQ==, tableContent=null), ArticleFig(id=1245390019066704442, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Table 1, caption=
Specimen parameters and main test results
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试件编号 | 钢管类型 | fcu/MPa | tp/mm | My/(kN•m) | μm,y/mm | Mu/(kN•m) | μm,u/mm | Mp/(kN•m) | μm,p/mm |
|---|
| CT40-1 | 碳素钢管 | 40.1 | 0 | 32.0 | 4.45 | 38.6 | 7.51 | 47.9 | 73.58 |
| CT40-2 | 碳素钢管 | 40.1 | 0 | 31.8 | 4.51 | 41.6 | 9.78 | 50.3 | 74.75 |
| CT60-1 | 碳素钢管 | 62.1 | 0 | 35.8 | 4.97 | 46.6 | 12.01 | 53.9 | 75.03 |
| CT60-2 | 碳素钢管 | 62.1 | 0 | 34.1 | 4.59 | 45.8 | 17.19 | 52.6 | 75.11 |
| PL40-1 | 衬塑钢管 | 40.1 | 2.5 | 32.5 | 4.89 | 49.1 | 16.84 | 58.6 | 75.06 |
| PL40-2 | 衬塑钢管 | 40.1 | 2.5 | 28.9 | 4.42 | 49.2 | 16.12 | 55.7 | 75.12 |
| PL60-1 | 衬塑钢管 | 62.1 | 2.5 | 32.9 | 4.27 | 53.3 | 14.56 | 61.7 | 75.08 |
| PL60-2 | 衬塑钢管 | 62.1 | 2.5 | 31.1 | 4.13 | 52.9 | 11.19 | 62.9 | 75.13 |
| CT-h-1 | 碳素钢管 | — | 0 | 30.2 | 5.35 | 34.5 | 9.10 | 34.6 | 17.83 |
| CT-h-2 | 碳素钢管 | — | 0 | 28.3 | 4.56 | 34.2 | 9.35 | 35.2 | 18.12 |
| PL-h-1 | 衬塑钢管 | — | 2.5 | 30.9 | 4.42 | 43.9 | 9.37 | 43.9 | 23.24 |
| PL-h-2 | 衬塑钢管 | — | 2.5 | 27.8 | 4.38 | 42.9 | 8.98 | 42.9 | 22.38 |
), ArticleFig(id=1245390019179950656, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=表1, caption=
试件参数及主要试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试件编号 | 钢管类型 | fcu/MPa | tp/mm | My/(kN•m) | μm,y/mm | Mu/(kN•m) | μm,u/mm | Mp/(kN•m) | μm,p/mm |
|---|
| CT40-1 | 碳素钢管 | 40.1 | 0 | 32.0 | 4.45 | 38.6 | 7.51 | 47.9 | 73.58 |
| CT40-2 | 碳素钢管 | 40.1 | 0 | 31.8 | 4.51 | 41.6 | 9.78 | 50.3 | 74.75 |
| CT60-1 | 碳素钢管 | 62.1 | 0 | 35.8 | 4.97 | 46.6 | 12.01 | 53.9 | 75.03 |
| CT60-2 | 碳素钢管 | 62.1 | 0 | 34.1 | 4.59 | 45.8 | 17.19 | 52.6 | 75.11 |
| PL40-1 | 衬塑钢管 | 40.1 | 2.5 | 32.5 | 4.89 | 49.1 | 16.84 | 58.6 | 75.06 |
| PL40-2 | 衬塑钢管 | 40.1 | 2.5 | 28.9 | 4.42 | 49.2 | 16.12 | 55.7 | 75.12 |
| PL60-1 | 衬塑钢管 | 62.1 | 2.5 | 32.9 | 4.27 | 53.3 | 14.56 | 61.7 | 75.08 |
| PL60-2 | 衬塑钢管 | 62.1 | 2.5 | 31.1 | 4.13 | 52.9 | 11.19 | 62.9 | 75.13 |
| CT-h-1 | 碳素钢管 | — | 0 | 30.2 | 5.35 | 34.5 | 9.10 | 34.6 | 17.83 |
| CT-h-2 | 碳素钢管 | — | 0 | 28.3 | 4.56 | 34.2 | 9.35 | 35.2 | 18.12 |
| PL-h-1 | 衬塑钢管 | — | 2.5 | 30.9 | 4.42 | 43.9 | 9.37 | 43.9 | 23.24 |
| PL-h-2 | 衬塑钢管 | — | 2.5 | 27.8 | 4.38 | 42.9 | 8.98 | 42.9 | 22.38 |
), ArticleFig(id=1245390019289002565, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Table 2, caption=
Measured material mechanical properties of steel
, figureFileSmall=null, figureFileBig=null, tableContent=
| 钢材种类 | fy/MPa | fu/MPa | Es/GPa | δ/% |
|---|
| 碳素钢管 | 330 | 395 | 202 | 28.1 |
| 衬塑钢管 | 352 | 422 | 204 | 27.2 |
), ArticleFig(id=1245390019368694345, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=表2, caption=
钢材实测材料力学性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| 钢材种类 | fy/MPa | fu/MPa | Es/GPa | δ/% |
|---|
| 碳素钢管 | 330 | 395 | 202 | 28.1 |
| 衬塑钢管 | 352 | 422 | 204 | 27.2 |
), ArticleFig(id=1245390019444191822, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=EN, label=Table 3, caption=
Mixing ratio of SSC
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| 混凝土类型 | 水 | 水泥 | 粗骨料 | 细骨料 | 外加剂 | 减水剂 |
|---|
| C40 | 198 | 471 | 1114 | 572 | 25粉煤灰 | — |
| C60 | 178 | 554 | 1130 | 608 | 43粉煤灰+35硅灰 | 12 |
), ArticleFig(id=1245390019515494995, tenantId=1146029695717560320, journalId=1241701559352995854, articleId=1245390006714479581, language=CN, label=表3, caption=
海水海砂混凝土配合比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 混凝土类型 | 水 | 水泥 | 粗骨料 | 细骨料 | 外加剂 | 减水剂 |
|---|
| C40 | 198 | 471 | 1114 | 572 | 25粉煤灰 | — |
| C60 | 178 | 554 | 1130 | 608 | 43粉煤灰+35硅灰 | 12 |
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