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[VI-955] Construction results of CSG using super retarder at Naruse Dam

〇Atsushi Oi¹, Yasunobu Nasuno¹, Takayuki Kambe¹, Yusaku Fujita¹, Goro Sakai¹, Shunichi Kuronuma², Aoi Onodera² (1.Kajima Corporation, 2.Tohoku Regional Development Bureau)

Keywords:Trapezoid-shaped CSG dam, change over time, Super retarder, Addition rate, Smectite mixed layer minerals