摘要
The viscosity evolution for different temperatures was studied experimentally.A time-varying viscosity model was derived and the influence of the initial temperature on gel time was analyzed.The experimental results show that the viscosity of polymer grout increases exponentially with time.It can be divided into two phases.Before gelation,the viscosity variable quantity is very small.At the gel point,there is a sudden increase in viscosity.The initial viscosity and gel time decrease with the increasing initial temperature within a certain range,The study contributes to deepening understanding of the rheological properties of polymer grout,which can provide some references for polymer grouting construction.
基金
Funded by the National Key Research and Development Plan(Nos.2017YFC0504503 and 2018YFB1600200)
the Program for Science and Technology Innovation Talents in Universities of Henan Province(No.19HASTIT041)
the National Natural Science Foundation of China(Nos.51908514,51878624,51878622,and U1404525)
the Natural Science Foundation of Henan Province(No.202300410746)
the Key Research Projects of Higher Education in Henan Province(No.18A580001)
the Program for Innovative Research Team(in Science and Technology)at the University of Henan Province(No.18IRTSTHN007)
the Major Scientific and Technological Special Project in Henan(No.181100310400)。
