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http://dx.doi.org/10.5762/KAIS.2011.12.9.4223

Evaluation of Field Application for the mix properties of the thixotropic grout  

Kim, Hak-Moon (Dept of Civil and Environmental Engineering, Dankook University)
Jang, Kyung-Jun (Dept of Civil and Environmental Engineering, Dankook University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.9, 2011 , pp. 4223-4238 More about this Journal
Abstract
The advantages of grouting are the simple instrument, the simple procedure of practice and the simple verification of grouting result. but the more grouting practice there is, the more damages of environment from grouting practice and grouting materials there are. so, the grouting materials and methods with the character of environment friendly are introduced in construction field, recently. This paper is to study of the physical characteristics that has thixotropic character and that consists of inorganic and polycarboxylate co-polymer. In study, various testing methods are performed such as a viscosity, a thixotropy, a compressive strength, a heavy metal detection and pH measurement in lab test and a low pressure injection test and a high pressure injection test in field with different soil type. As a result, a optimum mix ratio is proposed by analyzing the result of lab test. the field applicability is verified by checking a injection pressure, a grout volume and a hardened body of grout by excavating the practice site.
Keywords
Plasticity grout; Grouting; Plasticizer; Reinforced groud; Optimum mix ratio;
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