*Tohru Makita¹, Yoshio Koketsu², Tohru Sugiyama², Kiyohisa Ono³, Yasushi Kamihigashi¹ (1. Central Nipponn Expressway Co., Ltd., 2. JERA Co., Inc. , 3. Central-NEXCO Technical Marketing Co., Ltd.)

*Shinnya Suzuki¹, Yuko Ogawa¹, Kenji Kawai¹ (1. Hiroshima University)

*Masanori Maruoka¹, Fujiwara Hiromi¹ (1. Utsunomiya University)

*Masaru Tsukidi¹, Tomoki Kobori¹, Satoshi Fujiwara¹, Nobukazu Nito¹ (1. DC CO.,LTD)

*Taisuke Ibaraki¹, Masao Ishida¹, Yuusuke Isii¹, Satoshi Hujiwara² (1. Taiheiyo Cement Corporation, 2. DC Corporation)

*Tomoyuki Chousa¹, Tomiyama Satoru¹, Fujiwara Satoshi¹, Nito Nobukazu¹ (1. D.C. Co., Ltd.)

*Shunta Sawamoto¹, Motohiro Kadota¹, Katsunori Yokoi², Takuya Kondo², Shoji Shimomura³, Shigeo Hashimura³ (1. Kochi Natinal College of Technology Advanced Course, 2. Kochi Natinal College of Technology, 3. DaiohShinyo)

*Ikimori Yuta¹, Eizou Takesita², Yasuhiro Nagasio², Chunhe Li¹ (1. Miyazaki University, 2. Taiheiyo materials corporation)