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http://dx.doi.org/10.7843/kgs.2017.33.9.23

Evaluation of the Groutability through Microcrack and Viscosity Measurement Methods for Grouting Materials  

Jin, Hyun-Woo (Dept. of Smart City & Construction Engrg., Korea Univ. of Science and Technology)
Ryu, Byung-Hyun (Geotechnical Engrg. Research Institute, Korea Institute of Civil Engrg. and Building Technology)
Lee, Jang-Guen (Geotechnical Engrg. Research Institute, Korea Institute of Civil Engrg. and Building Technology, Dept. of Smart City Construction Engrg., Korea Univ. of Science and Technology)
Publication Information
Journal of the Korean Geotechnical Society / v.33, no.9, 2017 , pp. 23-34 More about this Journal
Abstract
In order to develop urban underground spaces, even microcracks should be reinforced. In this paper, the grouting injection performance for microcracks was investigated considering the viscosity and particle size of the grouting materials, injection pressure, and crack width. There are two types of typical grouting materials used for filling micro-cracks. One is a chemical liquid grouting material which is a solution type and the other is a cementitious grouting material which is a suspension type. The injection performance of the grouting materials for microcracks is generally influenced by the viscosity, and the injection performance of the cementitious grouting material is additionally affected by the particle size. From laboratory tests, the viscosity was calculated inversely to provide a suitable viscosity measurement method for each grouting material. The groutability ratio based on the relationship between the crack width and the particle size was evaluated to estimate the grouting feasibility of the cementitous grouting material through microcracks.
Keywords
Grouting; Microcrack; Viscosity; Particle size; Groutability; Laboratory test;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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