Possibilities of using ultrasound for the technological control of concrete of hollow-core slabs

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• 作者：Vladimir Guilherme Haach ; ^{vghaach@sc.usp.br} ; Lucas Marrara Juliani ^{lucasjuliani@hotmail.com}
• 关键词：Non-destructive tests ; Ultrasound ; Dynamic elastic modulus ; Hollow-core slab ; Precast concrete
• 刊名：Construction and Building Materials
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：133
• 期：Complete
• 页码：409-415
• 全文大小：864 K
• 卷排序：133

文摘

Ultrasonic tests provide reliable compressive strength vs. elastic modulus curves. Ultrasonic tests can improve the technological control in precast factories. The direct transmission method provides results with small dispersion. Elastic modulus of cylinders and hollow-core slabs were equivalents.