The study of ultrasonic pulse velocity on plain and reinforced damaged concrete

Kencanawati, Ni Nyoman and Akmaluddin, A and Anshari, Buan and Gazi, Ahmad and Shigeishi, Mitsuhiro (2018) The study of ultrasonic pulse velocity on plain and reinforced damaged concrete. MATEC Web of Conferences, 195 (2018). pp. 1-8. ISSN 2261-236X

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An ultrasonic pulse velocity (UPV) test is often applied to determine the quality of concrete structures. It is well known that there are several factors which can influence the reading of ultrasonic velocity in concrete. One of the factors is the presence of steel reinforcement. Therefore, this paper is intended to evaluate the ultrasonic pulse velocity propagation either in plain or reinforced damaged concrete. A study on sound concrete is also provided as a comparison. Three mixes of concrete were provided, with 25 MPa, 35 MPa, and 45 MPa target compressive strengths. The specimens were 200x200x200 mm cube concrete specimens and 100x150x1100 mm reinforced concrete beam specimens. Each specimen was examined for velocity readings in sound and damaged concrete (25% and 50% of maximum load). In all concrete grades of both plain and reinforced concrete, the ultrasonic velocity decreases as the damage level increases. During intact conditions, the velocity of reinforced concrete is around 4.5% higher than that of plain concrete. However, damaged reinforced concrete has a lower velocity than plain damaged concrete. Furthermore, a new equation for predicting ultrasonic pulse velocity in reinforced concrete is proposed.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Fakultas Teknik
Depositing User: Dr A Akmaluddin
Date Deposited: 28 Oct 2020 23:06
Last Modified: 28 Oct 2020 23:06

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