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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2004, Vol. 5 Issue (8): 928-931    DOI: 10.1631/jzus.2004.0928
Materials & Chemical Science     
Gel time of calcium acrylate grouting material
HAN Tong-chun
Institute of Geotechnical Engineering, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310027, China
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Abstract  Calcium acrylate is a polymerized grout, and can polymerize in an aqueous solution. The polymerization reaction utilizes ammonium persulfate as a catalyst and sodium thiosulfate as the activator. Based on the theory of reaction kinetics, this study on the relation between gel time and concentration of activator and catalyst showed that gel time of calcium acrylate is inversely proportional to activator and catalyst concentration. A formula of gel time is proposed, and an example is provided to verify the proposed formula.

Key words： Chemical grouting      Gel time      Reaction kinetics      Calcium acrylate      Polymerization reaction     
Received: 28 September 2003     
CLC:  TQ150.9  
  O646.5  
  X783  
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HAN Tong-chun
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HAN Tong-chun. Gel time of calcium acrylate grouting material. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2004, 5(8): 928-931.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2004.0928     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2004/V5/I8/928

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