Pengaruh Jarak Transducer dan Tulangan pada Pengukuran Kedalaman Retak Beton Menggunakan Ultrasonic Pulse Velocity (UPV)

  • Fajar Surya Herlambang Politeknik Negeri Bali
  • Evin Yudhi Setyono Politeknik Negeri Bali

Abstract

One of the most frequent problems with concrete structures is cracking. The cause of cracking
can be various kinds and types of cracks generated also vary. Excessive load on a column can result in
cracks. The crack pattern usually extends along the longitudinal axis and does not spread. Because of this
clear pattern, the measurement of crack width and crack depth can be performed. One way to know the
depth of the crack is by UPV test. The UPV test is performed by releasing ultrasonic waves from the
transducer and measuring the wave velocity up to the receiver. This wave velocity is the main variable in
the analysis. Because there is a reinforcement inside the concrete, it is feared that the reinforcement will
affect the wave speed so that the analysis becomes inaccurate. Therefore, we conducted a study
comparing wave velocity on non-reinforced and reinforced concrete. The crack depth of the UPV test will
be analyzed by the equation of BS 1881. The test specimens for this study are in the form of blocks
consisting of non-reinforced beams and beams with deform and undeform reinforcement. Into the
conditioned crack is 10, 20, 30 mm at age 28 days and transducer distance are 10, 14, and 18 cm. It is
observed that the transducer distance takes effect on the crack depth estimation.
 

 

Published
2017-11-23
How to Cite
HERLAMBANG, Fajar Surya; SETYONO, Evin Yudhi. Pengaruh Jarak Transducer dan Tulangan pada Pengukuran Kedalaman Retak Beton Menggunakan Ultrasonic Pulse Velocity (UPV). Prosiding Sentrinov (Seminar Nasional Terapan Riset Inovatif), [S.l.], v. 3, n. 1, p. TS162-TS172, nov. 2017. ISSN 2477-2097. Available at: <http://proceeding.sentrinov.org/index.php/sentrinov/article/view/310>. Date accessed: 16 june 2021.