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Study on Improvement of Vibration Compaction Performance of Fresh Mortar

Daiki Takehisa 1, Ichio Ide 2, Shin-ichiro Hashimoto 2, and Shigeyuki Date 2
1. Tokai University/Department of Civil Engineering, Hiratsuka City, Japan
2. FUJITA Corporation/Technology Development Division, Atsugi City, Japan
Fukuoka University/Department of Civil Engineering, Fukuoka City, Japan
Tokai University/Department of Civil Engineering, Hiratsuka City, Japan
Abstract—An influence of the difference in the particle size distribution of fine aggregate in mortar on plastic viscosity and packing properties under shaking was investigated. Furthermore, these effects on bleeding rate and liquefaction of fine aggregate with moisture by vibration were also investigated. As a result, if there is no significant difference in the shape and surface texture of the fine aggregate, the influence of fine aggregate type on the plastic viscosity under the vibration was relatively small, and the influence of particle size distribution on the filling property of mortar was also small. The mortar having a large plastic viscosity under vibration in each particle size distribution has a small bleeding amount. Bleeding also showed a close relationship with the time until liquefaction occurred when vibrating fine aggregate containing water.

Index Terms—Mortar, Size distribution of fine aggregate, vibration, plastic viscosity, filling property, bleeding, liquefaction phenomenon

Cite: Daiki Takehisa, Ichio Ide, Shin-ichiro Hashimoto, and Shigeyuki Date, "Study on Improvement of Vibration Compaction Performance of Fresh Mortar," International Journal of Structural and Civil Engineering Research, Vol. 7, No. 1, pp. 40-45, February 2018. doi: 10.18178/ijscer.7.1.40-45
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