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《材料导报》期刊社  2017, Vol. 31 Issue (21): 106-113    https://doi.org/10.11896/j.issn.1005-023X.2017.021.015
  材料综述 |
混凝土低温早强剂研究现状*
张丰1, 2, 白银1, 2, 蔡跃波1, 2, 杜杰贵3, 宁逢伟1, 2
1 南京水利科学研究院,南京 210029;
2 水文水资源与水利工程科学国家重点实验室,南京 210024;
3 云南省大山包一级公路建设指挥部,昭通 657000
Research Status of Low Temperature Early Strength Agents for Concrete
ZHANG Feng1,2, BAI Yin1,2, CAI Yuebo1,2, DU Jiegui3, NING Fengwei1,2
1 Nanjing Hydraulic Research Institute, Nanjing 210029;
2 State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210024;
3 Construction Headquarters of Dashanbao Arterial Road in Yunnan Province, Zhaotong 657000
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摘要 在冬期施工或有早强要求的混凝土工程中掺早强剂,对加快工程进度、提高混凝土质量等有重要作用,其掺量一般不超过水泥质量的5%。目前传统早强组分已不能满足绿色、高性能混凝土的要求,且之前研究多在常温下进行,而低温(尤其是5 ℃)环境下的研究相对较少,同时低温早强效果相对有限,低温下的作用机理也不明确。随着工程建设的进一步发展,开发既满足低温早强要求又有良好工作性的低温早强剂是今后的一个重要研究方向。在分类总结各常见早强组分的性能特点、存在问题及作用机理的基础上,介绍了低温条件下早强剂的研究、应用现状,为后续低温早强剂的研制指明方向。
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张丰
白银
蔡跃波
杜杰贵
宁逢伟
关键词:  混凝土  早强剂  低温  机理    
Abstract: In winter construction or concrete engineering with early strength requirements, early strength agent plays an important role in speeding up the construction schedule and improving the quality of concrete, and its content is generally not more than 5% of the mass of cement. At present, the traditional early strength components are unable to meet the requirements of green and high performance concrete. Most of the previous studies about early strength agent are conducted at room temperature, while the research of early strength agent in low temperature environment (especially 5 ℃) is relatively insufficient, and low temperature early strength effect is relatively limited, the mechanism of low temperature early strength is also not clear. With the further development of engineering construction, it is an important research direction to develop low temperature early strength agent which meets the requirements of low temperature early strength and good workability. Based on the classification summary of the performance characteristics, existing problems and action mechanisms of the common early strength components, this paper introduces the research and application of early strength agent in low temperature, and also point out the development direction of low temperature early strength agent.
Key words:  concrete    early strength agent    low temperature    mechanism
               出版日期:  2017-11-10      发布日期:  2018-05-08
ZTFLH:  TQ172  
基金资助: 云南省交通运输厅行业科技攻关项目(云交科教[2016]56号一(三));中央级公益性科研院所基本科研业务费专项资金(Y416003)
通讯作者:  蔡跃波,男,1958年生,教授,博士研究生导师,主要从事水工材料及大坝安全管理的研究 E-mail:ybcai@nhri.cn   
作者简介:  张丰:男,1989年生,博士研究生,主要从事水工材料及混凝土耐久性的研究 E-mail:zhangfeng19891128@163.com
引用本文:    
张丰, 白银, 蔡跃波, 杜杰贵, 宁逢伟. 混凝土低温早强剂研究现状*[J]. 《材料导报》期刊社, 2017, 31(21): 106-113.
ZHANG Feng, BAI Yin, CAI Yuebo, DU Jiegui, NING Fengwei. Research Status of Low Temperature Early Strength Agents for Concrete. Materials Reports, 2017, 31(21): 106-113.
链接本文:  
http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2017.021.015  或          http://www.mater-rep.com/CN/Y2017/V31/I21/106
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