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Open Access

ARTICLE

Effects of Repair Grouting and Jacketing on Corrosion Concrete Using Ultrasonic Method

Rivky Afanda1, Ahmad Zaki1,2,*
1 Magister of Civil Engineering, Universitas Muhammadiyah Yogyakarta, Bantul, 55183, Indonesia
2 Department of Civil Engineering, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta, Bantul, 55183, Indonesia
* Corresponding Author: Ahmad Zaki. Email: email

Structural Durability & Health Monitoring https://doi.org/10.32604/sdhm.2024.053084

Received 24 April 2024; Accepted 15 July 2024; Published online 04 December 2024

Abstract

Concrete is one of the most important elements in building construction. However, concrete used in construction is susceptible to damage due to corrosion. The influence of corrosive substances causes changes in the reinforcing steel and affects the strength of the structure. The repair method is one approach to overcome this problem. This research aims to determine the effect of grouting and jacketing repairs on corroded concrete. The concrete used has dimensions of 15 cm × 15 cm × 60 cm with planned corrosion variations of 50%, 60%, and 70%. The test objects were tested using the Non-Destructive Testing (NDT) method using Ultrasonic Pulse Velocity (UPV). The test results show that the average speed of normal concrete is 5070 m/s, while the lowest average speed is 3070 m/s on the 70% planned corrosion test object. The test object was then given a load of 1600 kgf. At this stage, there is a decrease in speed and wave shape with the lowest average speed obtained at 2753 m/s. The repair method is an effort to restore concrete performance by using grouting and jacketing. Grouting is done by injecting mortar material into it. Jacketing involves adding thickness to the existing concrete layer with additional layers of concrete. After improvements were made, there was an improvement in the UPV test, with a peak speed value of 4910 m/s. Repairing concrete by filling cracks can improve concrete continuity and reduce waveform distortion, thereby increasing wave propagation speed.

Keywords

Corrosion; concrete; repair; grouting; jacketing; non-destructive testing (NDT); ultrasonic pulse velocity (UPV)

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