摘要
综合阐述了三乙醇胺作用机理的研究进展,并将目前研究中涉及到的三乙醇胺作用机理归纳为:催化作用、粘结-吸湿-分散作用、乳化作用以及增溶作用;对由三乙醇胺早强剂衍生得到的两类复合外加剂——TEA-无机复合外加剂和TEA-无机-减水剂复合外加剂的主要组成成分与功能特性进行归类整理,并简述其作用机理;通过对比两种复合外加剂的研究现状,提出复合外加剂的开发应以高效、高性能、高环保、高相容、低价格等作为出发点;最后,通过将TEA与速凝剂进行对比分析,发现TEA具有与速凝剂相似的功能特性,TEA及其衍生的复合外加剂在隧道工程中具有潜在的应用价值。
This paper summaries the current research progresses on the action mechanism of triethanolamine,which is summarized into catalysis,bonding-hygroscopicity-dispersion,emulsification and solubilization.It also classifies the main components and functional properties of two types of compound admixtures derived from trietha⁃nolamine early strength agents:TEA-inorganic compound admixture and TEA-inorganic water reducer compound admixture,and provides a brief description of their action mechanisms;by comparing the research status of the two compound admixtures,this paper proposes that the development of compound admixtures should take the following features as the starting point:high efficiency,high performance,high level of environmental protection,high compat⁃ibility,and low price,etc.Finally,by comparing TEA with setting accelerator,it is found that TEA has similar func⁃tional properties to setting accelerator and that TEA and its derived compound admixtures have potential application prospects in tunnelling.
作者
叶飞
何彪
田崇明
王思宇
王坚
宋桂锋
YE Fei;HE Biao;TIAN Chongming;WANG Siyu;WANG Jian;SONG Guifeng(School of Highway,Chang′an University,Xi′an 710064;Yunnan Laman Expressway Co.Ltd.,Xishuanbanna 666300)
出处
《现代隧道技术》
CSCD
北大核心
2021年第4期67-78,共12页
Modern Tunnelling Technology
基金
国家自然科学基金面上项目(51878060).
关键词
喷射混凝土外加剂
三乙醇胺
促凝-缓凝特性
早强特性
复合外加剂
Shotcrete admixtures
Triethanolamine
Accelerating-delaying properties
Early-strength properties Compound admixtures
