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氧化石墨烯对新拌水泥浆体流变性的影响
引用本文:焦敏. 氧化石墨烯对新拌水泥浆体流变性的影响[J]. 硅酸盐通报, 2021, 40(7): 2159-2164
作者姓名:焦敏
作者单位:重庆工程学院土木工程学院,重庆 400056
基金项目:重庆市教育委员会2020年度市教委科学技术研究计划(KJQN202001909)
摘    要:随着纳米材料和技术不断发展,关于氧化石墨烯对水泥基材料改性作用的相关研究越来越受到重视.在此背景下,通过Anton Paar Rheolab QC型旋转黏度计研究了氧化石墨烯对新拌水泥浆体流变性的影响,并测试了浆体静态屈服应力、动态屈服应力和黏度系数以及触变环面积.结果表明:相同氧化石墨烯掺量下,随浆体静置时间延长,低...

关 键 词:氧化石墨烯  水泥浆体  静态流变性能  动态流变性能  触变性
收稿时间:2020-09-17

Influence of Graphene Oxide on Rheological Properties of Fresh Cement Paste
JIAO Min. Influence of Graphene Oxide on Rheological Properties of Fresh Cement Paste[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(7): 2159-2164
Authors:JIAO Min
Affiliation:College of Civil Engineering, Chongqing Institute of Engineering, Chongqing 400056, China
Abstract:With the continuous development of nano-materials and technology, more and more attention has been paid to the modification of cement-based materials by graphene oxide. In this context, the influence of graphene oxide on the rheological properties of fresh cement paste was studied by Anton Paar Rheolab QC rheometer, and the static yield stress, dynamic yield stress, viscosity coefficient and thixotropic ring area of the paste were measured. The results show that under the same content of graphene oxide, the longer the paste resting time is, the higher the static yield stress is. With the increase ofthe graphene oxide content, the paste microstructure establishment parameters, dynamic yield stress, and viscosity coefficient first increase and then decrease, while the thixotropic loop area shows an opposite changing trend.
Keywords:graphene oxide  cement paste  static rheological property  dynamic rheological property  thixotropy  
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