混和剤 (2)

[V-566] Quality Evaluation Using Non-destructive Tests at Placement Joint of Concrete Structures with over 35 degree Hot Weather Concrete Using Slump-retaining Type Admixture

*Haruka Mori¹, Akira Hosoda¹, Ryoichi Ashizawa², Masae Ohashi², Kenzo Watanabe², Shuji Yanai², Takumi Sugamata³, Shinichi Koizumi³, Nobuaki Ago³, Tatsuya Tsutsui⁴ (1. Yokohama National University , 2. Kajima Corporation, 3. Pozzolith Solutions Ltd., 4. Kokusai-kigyo)

Keywords:Hot weather concrete, Slump retaining, Placement joint, Quality evaluation, Air permeability test, Surface water absorption test