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喷射混凝土液体速凝剂研究现状
收稿日期: 2016-11-17
修回日期: 2016-12-26
网络出版日期: 2017-06-08
Stateofart of Research on Liquid Accelerators for Shotcrete
Received date: 2016-11-17
Revised date: 2016-12-26
Online published: 2017-06-08
杨力远 , 田俊涛 , 杨艺博 , 孙良 . 喷射混凝土液体速凝剂研究现状[J]. 隧道建设, 2017 , 37(5) : 543 -552 . DOI: 10.3973/j.issn.1672-741X.2017.05.004
The stateoftheart of development of liquid accelerators in China and other countries is summarized. The liquid accelerator is classified into 4 types, namely, water glass, sodium and potassium aluminates, aluminum sulfate, sulfurfree and alkalifree, on basis of main accelerating components. The R & D and new achievements of liquid accelerators in China and other countries are introduced in terms of manufacturing, properties and accelerating mechanism. And then the problems of existing liquid accelerators, especially the sulfurfree and alkalifree accelerator, are proposed in aspects of mixing volume, price, storage stability and safety and environment protection. Finally, the research direction for liquid accelerator is recommended.
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