Article(id=1318974610364805747, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1318974603884606018, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20230151, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1678723200000, receivedDateStr=2023-03-14, revisedDate=1681142400000, revisedDateStr=2023-04-11, acceptedDate=null, acceptedDateStr=null, onlineDate=1792397652473, onlineDateStr=2026-10-19, pubDate=1683216000000, pubDateStr=2023-05-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792397652473, onlineIssueDateStr=2026-10-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792397652473, creator=13701087609, updateTime=1792397652473, updator=13701087609, issue=Issue{id=1318974603884606018, tenantId=1146029695717560320, journalId=1263187385517883426, year='2023', volume='51', issue='8', pageStart='1883', pageEnd='2118', issueExtLink='null', onlineDate='null', pubDate='1692460800000', pubDateStr='2023-08-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792397650929, creator='13701087609', updateTime=1792399225992, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1318981210261541260, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1318974603884606018, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1318981210261541261, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1318974603884606018, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1979, endPage=1986, ext={EN=ArticleExt(id=1318974610570326644, articleId=1318974610364805747, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Influence of Calcium Silicate Hydrate Seeds Modified by Polycarboxylate Superplasticizer on Cement Hydration Process, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

To study the promotion process of cement hydration by polycarboxylate superplasticizers modified calcium silicate hydrate (C-S-H/PCE) and understand the mechanism of C-S-H/PCE seeds promotion of cement hydration. Acrylic acid-based polycarboxylate superplasticizer (PCE-1) and silane-based polycarboxylate superplasticizer (PCE-2) were used to surface modify the hydrothermal synthesized calcium silicate hydrate (C-S-H/Unmodified) seeds, resulting in the polycarboxylate superplasticizer modified C-S-H seeds (C-S-H/PCE-1 and C-S-H/PCE-2). Subsequently, these three C-S-H seeds were added to the cement paste. The compressive strength, phase composition, and heat release curve of cement paste and the surface tension of C-S-H seeds were tested. The results showed that the surface modification of PCE-1 and PCE-2 resulted in an increase in the surface contact angle of C-S-H seeds from 36.9° to 41.1° and 42.9°, resulting in lattice mismatch of the sedimentary phase (hydration product) on the surface of the substrate material (C-S-H seeds) and inhibiting the epitaxial growth of cement hydration products on the surface of C-S-H seeds. PCE modification reduced the promoting effect of C-S-H seeds on the hydration process of Portland cement. Moreover, the degree of reduction in the hydration promoting effect of C-S-H/PCE-2 on Portland cement is significantly greater than that of C-S-H/PCE-1 crystal nucleus. Tests of the adsorption equilibrium of PCE in the pore solution indicated that the C-S-H/PCE seeds did not directly introduce new crystal nucleation sites but exposed new C-S-H surfaces through the desorption of PCE on the surface of C-S-H/PCE seeds. The desorption degree of PCE on the surface of C-S-H/PCE seeds determined the promoting effect of C-S-H/PCE seeds on cement hydration.

, authors=Xuechuang WANG1, Ziming WANG2, Xiao LIU2, Hongyao SUN3, Chunyang ZHENG1, authorsList=Xuechuang WANG, Ziming WANG, Xiao LIU, Hongyao SUN, Chunyang ZHENG, authorCompany=null, correspAuthors=null, authorNote=

WANG Xuechuan (1991-), male, Master, Engineer. E-mail:

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为研究聚羧酸减水剂改性水化硅酸钙晶核(C-S-H/PCE)对水泥水化的促进过程,了解C-S-H/PCE对水泥水化的促进作用机理,采用丙烯酸类型的聚羧酸减水剂(PCE-1)和硅烷类型的聚羧酸减水剂(PCE-2)对水热合成的水化硅酸钙(C-S-H/Unmodified)晶核进行表面处理得到聚羧酸减水剂改性水化硅酸钙晶核C-S-H/PCE-1和C-S-H/PCE-2,随后将不同C-S-H晶核添加到水泥净浆中。对C-S-H晶核表面张力和水泥净浆抗压强度、物相组成、水化放热曲线进行了测试,结果表明:PCE-1和PCE-2表面改性导致C-S-H晶核表面接触角从36.9°增加到41.1°和42.9°,造成了沉积相(水化产物)在衬底材料(晶核)表面的晶格失配,抑制了水泥水化产物在C-S-H晶核表面外延生长,降低了C-S-H晶核对硅酸盐水泥水化进程的促进作用,且C-S-H/PCE-2晶核对硅酸盐水泥水化促进作用降低程度明显大于C-S-H/PCE-1晶核。对水泥净浆空隙溶液中PCE的吸附平衡过程测试表明,C-S-H/PCE晶核并非直接引入了新的结晶成核位点,而是通过表面PCE的解吸附暴露出新C-S-H表面,且PCE在C-S-H/PCE晶核表面解吸附过程决定了C-S-H/PCE晶核对水泥水化促进效果。

, authors=王学川1, 王子明2, 刘晓2, 孙红尧3, 郑春扬1, authorsList=王学川, 王子明, 刘晓, 孙红尧, 郑春扬, authorCompany=null, correspAuthors=null, authorNote=

王学川(1991—),男,硕士,工程师。

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聚羧酸减水剂改性水化硅酸钙晶核对水泥水化进程的影响
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王学川 1 , 王子明 2 , 刘晓 2 , 孙红尧 3 , 郑春扬 1
硅酸盐学报 | 研究论文 2023,51(8): 1979-1986
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硅酸盐学报 |研究论文 2023 , 51 (8) : 1979 -1986
聚羧酸减水剂改性水化硅酸钙晶核对水泥水化进程的影响
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王学川1 , 王子明2, 刘晓2, 孙红尧3, 郑春扬1
作者信息
  • 1.江苏奥莱特新材料股份有限公司,江苏省(奥莱特)混凝土高分子助剂工程技术研究中心,南京 211505
  • 2.北京工业大学材料与制造学部,北京 100124
  • 3.南京水利科学研究院,南京 210029
作者简介:

王学川(1991—),男,硕士,工程师。

Influence of Calcium Silicate Hydrate Seeds Modified by Polycarboxylate Superplasticizer on Cement Hydration Process
Xuechuang WANG1 , Ziming WANG2, Xiao LIU2, Hongyao SUN3, Chunyang ZHENG1
Affiliations
  • 1.Jiangsu China ARIT New Materials Co., Ltd, Jiangsu Province Engineering Research Center (ARIT) of concrete polymer additives, Nanjing 211505, China
  • 2.Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
  • 3.Nanjing Hydraulic Research Institute, Nanjing 210029, China
  • WANG Xuechuan (1991-), male, Master, Engineer. E-mail:

出版时间: 2023-05-05 doi: 10.14062/j.issn.0454-5648.20230151
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为研究聚羧酸减水剂改性水化硅酸钙晶核(C-S-H/PCE)对水泥水化的促进过程,了解C-S-H/PCE对水泥水化的促进作用机理,采用丙烯酸类型的聚羧酸减水剂(PCE-1)和硅烷类型的聚羧酸减水剂(PCE-2)对水热合成的水化硅酸钙(C-S-H/Unmodified)晶核进行表面处理得到聚羧酸减水剂改性水化硅酸钙晶核C-S-H/PCE-1和C-S-H/PCE-2,随后将不同C-S-H晶核添加到水泥净浆中。对C-S-H晶核表面张力和水泥净浆抗压强度、物相组成、水化放热曲线进行了测试,结果表明:PCE-1和PCE-2表面改性导致C-S-H晶核表面接触角从36.9°增加到41.1°和42.9°,造成了沉积相(水化产物)在衬底材料(晶核)表面的晶格失配,抑制了水泥水化产物在C-S-H晶核表面外延生长,降低了C-S-H晶核对硅酸盐水泥水化进程的促进作用,且C-S-H/PCE-2晶核对硅酸盐水泥水化促进作用降低程度明显大于C-S-H/PCE-1晶核。对水泥净浆空隙溶液中PCE的吸附平衡过程测试表明,C-S-H/PCE晶核并非直接引入了新的结晶成核位点,而是通过表面PCE的解吸附暴露出新C-S-H表面,且PCE在C-S-H/PCE晶核表面解吸附过程决定了C-S-H/PCE晶核对水泥水化促进效果。

水化硅酸钙晶核  /  聚羧酸减水剂  /  水泥  /  水化进程  /  吸附

To study the promotion process of cement hydration by polycarboxylate superplasticizers modified calcium silicate hydrate (C-S-H/PCE) and understand the mechanism of C-S-H/PCE seeds promotion of cement hydration. Acrylic acid-based polycarboxylate superplasticizer (PCE-1) and silane-based polycarboxylate superplasticizer (PCE-2) were used to surface modify the hydrothermal synthesized calcium silicate hydrate (C-S-H/Unmodified) seeds, resulting in the polycarboxylate superplasticizer modified C-S-H seeds (C-S-H/PCE-1 and C-S-H/PCE-2). Subsequently, these three C-S-H seeds were added to the cement paste. The compressive strength, phase composition, and heat release curve of cement paste and the surface tension of C-S-H seeds were tested. The results showed that the surface modification of PCE-1 and PCE-2 resulted in an increase in the surface contact angle of C-S-H seeds from 36.9° to 41.1° and 42.9°, resulting in lattice mismatch of the sedimentary phase (hydration product) on the surface of the substrate material (C-S-H seeds) and inhibiting the epitaxial growth of cement hydration products on the surface of C-S-H seeds. PCE modification reduced the promoting effect of C-S-H seeds on the hydration process of Portland cement. Moreover, the degree of reduction in the hydration promoting effect of C-S-H/PCE-2 on Portland cement is significantly greater than that of C-S-H/PCE-1 crystal nucleus. Tests of the adsorption equilibrium of PCE in the pore solution indicated that the C-S-H/PCE seeds did not directly introduce new crystal nucleation sites but exposed new C-S-H surfaces through the desorption of PCE on the surface of C-S-H/PCE seeds. The desorption degree of PCE on the surface of C-S-H/PCE seeds determined the promoting effect of C-S-H/PCE seeds on cement hydration.

calcium silicate hydrate seeds  /  polycarboxylate superplasticizers  /  cement  /  hydration process  /  adsorption
王学川, 王子明, 刘晓, 孙红尧, 郑春扬. 聚羧酸减水剂改性水化硅酸钙晶核对水泥水化进程的影响. 硅酸盐学报, 2023 , 51 (8) : 1979 -1986 . DOI: 10.14062/j.issn.0454-5648.20230151
Xuechuang WANG, Ziming WANG, Xiao LIU, Hongyao SUN, Chunyang ZHENG. Influence of Calcium Silicate Hydrate Seeds Modified by Polycarboxylate Superplasticizer on Cement Hydration Process[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (8) : 1979 -1986 . DOI: 10.14062/j.issn.0454-5648.20230151
  • 国家自然科学基金项目(51578025)
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doi: 10.14062/j.issn.0454-5648.20230151
  • 接收时间:2023-03-14
  • 首发时间:2026-10-19
  • 出版时间:2023-05-05
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  • 收稿日期:2023-03-14
  • 修回日期:2023-04-11
基金
国家自然科学基金项目(51578025)
作者信息
    1.江苏奥莱特新材料股份有限公司,江苏省(奥莱特)混凝土高分子助剂工程技术研究中心,南京 211505
    2.北京工业大学材料与制造学部,北京 100124
    3.南京水利科学研究院,南京 210029
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2种不同金属材料的力学参数
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属
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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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