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http://dx.doi.org/10.5762/KAIS.2018.19.12.279

A Study on the Grouting Effect of Ultrafine Cement in Rock Ground  

An, Jun-Hee (Division of R&D Team, JiSan Specialty Construction co., LTD.)
Park, Choon-Sik (Division of Civil, Enviremental and Chemical Engineering, Changwon National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.12, 2018 , pp. 279-286 More about this Journal
Abstract
The grouting method is to reinforce the ground by injecting the chemical solution for the strengthening of the ground. Cement grouting material has usually used portland cement for centuries ago, but the cement particle size is large and the injection effect is limited. This study analyzes the effect of ultrafine cement grouting in rock ground using 3S-1 grouting in rock ground and ordinary Portland cement (OPC). The results of tests were compared and analyzed from the Lugeon test, bore loading test (P.M.T.), and injection (P-Q) test. The use of ultrafine cement (3S-1) had a higher effect (K, 10-6cm/sec) than OPC. The reinforcement effect of 3S-1 was also confirmed. Ultrafine cement (3S-1) was 4~9 times more injectable than OPC. Therefore, it is more advantageous to use ultrafine cement (3S-1) than OPC.
Keywords
Grouting; Rock ground; Ultrafine Cement; 3S-1; OPC;
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