[1]黄 鹤,蒋亚清,潘亭宏,等.大流动度水泥净浆流变模型研究[J].南京师大学报(自然科学版),2021,44(03):20-23.[doi:10.3969/j.issn.1001-4616.2021.03.004]
　Huang He,Jiang Yaqing,Pan Tinghong,et al.Research on the Rheological Model of Cement Paste with Large Fluidity[J].Journal of Nanjing Normal University(Natural Science Edition),2021,44(03):20-23.[doi:10.3969/j.issn.1001-4616.2021.03.004]
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大流动度水泥净浆流变模型研究()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第44卷
期数:
2021年03期
页码:
20-23
栏目:
·物理学·
出版日期:
2021-09-15

文章信息/Info

Title:
Research on the Rheological Model of Cement Paste with Large Fluidity
文章编号:
1001-4616(2021)03-0020-04
作者:
黄 鹤; 蒋亚清; 潘亭宏; 吉旭平
河海大学力学与材料学院,江苏 南京 211100
Author(s):
Huang He; Jiang Yaqing; Pan Tinghong; Ji Xuping
College of Mechanics and Materials of Hohai University,Nanjing 211100,China
关键词:
新拌水泥基材料; 流变性能; 流变模型; 聚羧酸减水剂
Keywords:
fresh cementitious materials; rheological properties; rheological model; polycarboxylic superplasticizers
分类号:
TU528
DOI:
10.3969/j.issn.1001-4616.2021.03.004
文献标志码:
A
摘要:
为研究掺聚羧酸减水剂的新拌水泥基材料流变参数模型,通过RST-SST型旋转式流变仪测定了大流动度水泥净浆的流变曲线,将经验模型与理论模型得到的流变参数进行比对. 结果表明:对大流动度水泥净浆,改进Bingham经验模型更加适用. Bingham模型得到的经验粘度值与浆体理论粘度更一致,其粘度参数可用于表征浆体粘度值. 改进Bingham模型中各参数与浆体理论粘度满足定量关系式:η=η1+100c.
Abstract:
This paper aims at studying the rheological parameters model of fresh cementitious materials with polycarboxylic superplasticizers. Rheological properties of the high fluidity cement paste were measured by RST-SST rotational rheometer,and the rheological parameters obtained from the empirical model were compared with those from the theoretical model.The results show that the modified Bingham model is more applicable to high fluidity cement paste,the empirical viscosity values obtained from the Bingham model are more consistent with the theoretical viscosity of the paste and its viscosity parameters can be used to characterise the viscosity values of the paste.The parameters in the modified Bingham model satisfy a quantitative relationship with the theoretical viscosity of the paste:η=η1+100c.

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备注/Memo

备注/Memo:
收稿日期:2021-03-15.
基金项目:国家自然科学基金重点项目(51738003).
通讯作者:蒋亚清,博士,教授,博士生导师,研究方向:新型环境友好材料. E-mail:yqjiang@hhu.edu.cn
更新日期/Last Update: 2021-09-15