Study And Application Of Modified Epoxy Resin Grouting Material

The chemical grouting technique is widely applied in many kinds of engineerings, such as hydropower, tunnel, subway, mineral mountain, coal, transportation...etc.The technique has characteristics of fleetness, economy, special and dependable etc.and develop its original effect well in civil engineering of waterproofing process, treatment to leakage, structural reinforcement. Chemical grouting materials contain a lot of specieses, each there is characteristics. According to to the investigation result of the current chemical grouting material, make sure the way to research and be applied of modified chemical grouting material.A lot of indoor and in-suti test to the properties of the chemical grouting material, especially the properties requested by actual engineering has proceeded.Active-diluent of furfural-acetone, low poison hardener.surfactant and a series of formula have been selected by experiment.CW series material has low glue degree,time last of it harden can be adjust, surface tension and contact angle of the material is low. the strength of harden material is high, and the properties of this materials and the repairing techniques are advantageous to that of the others.By theoretical exploration on mechanism of permeation, investigate the movement regulation of the material in the object be treated .that make grouting technolgy can be suported by theories: absorb-permeate mechanism of the liquid in the soil proceed to experiment, intermittent grouting method was made according to the result of experiment; establish the proliferation control theories model of Modified Epoxy Resin in the not even crack system;to match between material characteristic and craft,to reach the goal of construction in the special and complicated cases,can be directed by the theories.The characteristic of chemical grouting material should combind with construstion method directed by the theories, it is necessity guarantee for the good result in some special cases. By CW series material, various complicated engineerings have beensuccessfully handled,such as the treatment of concrete fine cracks in Three Gorges Project(TGP), foundation reinforcement to the fault in in Three Gorges Project(TGP),and the seepage control and reinforcement for the dam base of JIANGYA Hydropower-station. These illustrations are provided to proof the advantages of Modified Epoxy Resin and its technique.