非破壊試験法(3)／評価・試験方法

[V-332] Relationship between compressive strength of early age concrete and properties of elastic wave propagation between steel plate and concrete

〇kou hiwatashi¹, kentaro ohno¹, atsushi ueno¹, kimitaka uji¹, noriyuki utagawa², shinnya kitagawa², jyunnichi hayakawa² (1.tokyo metropolitan university, 2.sato kogyo)

Keywords:Covering concrete, estimation of compressive strength in concrete, impact elastic wave method, ultrasonic method, spectral centroid frequency