Analisis Prediksi Korosi Tulangan pada Beton Busa Bertulang dengan Metode Half Cell Potential Mapping

Fajri Fajri

Abstract


Half-cell potential mapping is a simple non-destructive test method for the corrosion of reinforcing steel. This study aim to analyze the prediction of reinforcing corrosion in reinforced foam concrete using the Haf-Cell Potential Mapping method. The test includes mapping of reinforcing steel and measuring corrosion potential. The speciment is beam of 15cm x 20cm x 80cm size. The main reinforcement is  4Ø10mm and stirrup Ø6-10cm, and concrete cover thickness of 20mm. Cement water rasio is  0,4; specifi gravity 1,6 and compressive strength of 25MPa. The specimens were immersed in a 3,5% sodium chloride solution and in well water as a control. Corrosion potential measurements were carried out every 2 weeks for 16 weeks. The results showed that the corrosion potential value increased due to the duration of immersion. The corrosion potential value of the speciment immersed in NaCl solution is.-300mV, the risk of corrosion is 90%. The corrosion potential value of the speciment immersed in well water is -200mV, the risk of corrosion is at 50%. Foam concrete soaked in seawater has a greater risk of corrosion than in well water. But the risk of foam concrete submerged in seawater is still smaller than conventional concrete submerged in seawater.


Keywords


beton busa, korosi, half-cell potential

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References


Amran, Y. H. M., Farzadnia, N., & Ali, A. A. A. (2015). Properties and applications of foamed concrete; A review. In Construction and Building Materials. https://doi.org/10.1016/j.conbuildmat.2015.10.112

Assouli, B., Ballivy, G., & Rivard, P. (2008). Influence of environmental parameters on application of standard ASTM C876-91: Half cell potential measurements. In Corrosion Engineering Science and Technology. https://doi.org/10.1179/174327807X214572

ASTM A 751-07a. (2007). Standard Test Methods , Practices , and Terminology for Chemical Analysis of Steel Products. Standards.

Broomfield, J. P. (2011). Corrosion of Steel in Concrete. In Uhlig’s Corrosion Handbook: Third Edition. https://doi.org/10.1002/9780470872864.ch49

Claisse, P. A. (2008). Corrosion of steel in concrete – understanding, investigation and repair 2nd edn. Broomfield J. P. , Taylor & Francis, London,.

Fontana, M. G. (1986). Corrosion engineering. Third edition.

Gopalakrishnan, R., Sounthararajan, V., Mohan, A., & Tholkapiyan, M. (2020). The strength and durability of fly ash and quarry dust light weight foam concrete. Materials Today: Proceedings, 22(3), 1117–1124. https://doi.org/https://doi.org/10.1016/j.matpr.2019.11.317

Kurt, M., Gül, M. S., Gül, R., Aydin, A. C., & Kotan, T. (2016). The effect of pumice powder on the self-compactability of pumice aggregate lightweight concrete. Construction and Building Materials, 103, 36–46. https://doi.org/https://doi.org/10.1016/j.conbuildmat.2015.11.043

Nugraha, P. (2007). Antoni. In Teknologi Beton.

Oyejobi, D. O., Jameel, M., Sulong, N. H. R., Raji, S. A., & Ibrahim, H. A. (2020). Prediction of optimum compressive strength of light-weight concrete containing Nigerian palm kernel shells. Journal of King Saud University - Engineering Sciences, 32(5), 303–309. https://doi.org/https://doi.org/10.1016/j.jksues.2019.04.001

Palanisamy, M., Kolandasamy, P., Awoyera, P., Gobinath, R., Muthusamy, S., Krishnasamy, T. R., & Viloria, A. (2020). Permeability properties of lightweight self-consolidating concrete made with coconut shell aggregate. Journal of Materials Research and Technology, 9(3), 3547–3557.

Rahmawati, C., & Meliyana, M. (2019). Potensi Limbah Karbit Sebagai Pengganti Semen Pada Bata Ringan. Seminar Nasional Multi Disiplin Ilmu Universitas Asahan, 627–635.

Rahmawati, C., Meliyana, M., Thufail, I., Muhtadin, M., & Faisal, M. (2020). Impact of Fire on Mechanical Properties of Lightweight Bricks Containing Calcium Carbide Residue. Jurnal Inotera, 5(2), 129–138.

Riadi, H., & Abdullah. (2015). Kajian Perilaku Geser Balok Beton Ringan Busa Dengan Penambahan Agregat Pasir Pozzolan . EMARA Indonesian Journal of Architecture.

Rommel, E., Karimah, R., & Ningsih, P. A. W. (2018). Pengaruh Pemakaian Serat Ijuk Dan Foam Agent Terhadap Sifat Mekanik Beton Busa. Seminar Nasional Teknologi Dan Rekayasa (SENTRA) 2018.

Schwalm, C., & Schütze, M. (2000). The corrosion behavior of several heat resistant materials in air + 2% CI2 at 300 to 800 °C Part 2 - Nickel base alloys. Werkstoffe Und Korrosion. https://doi.org/10.1002/(sici)1521-4176(200002)51:2<73::aid-maco73>3.0.co;2-v

Siddiq, S. (2008). BANGUNAN TAHAN GEMPA BERBASIS STANDAR NASIONAL INDONESIA. Jurnal Standardisasi. https://doi.org/10.31153/js.v8i2.664

Wasserman, R., & Bentur, A. (1997). Effect of lightweight fly ash aggregate microstructure on the strength of concretes. Cement and Concrete Research. https://doi.org/10.1016/S0008-8846(97)00019-7




DOI: https://doi.org/10.30601/jtsu.v7i1.1502

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Jurnal Teknik Sipil Unaya


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This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

© Jurnal Teknik Sipil Unaya : Published by Center for Research and Community Service (LPPM) University of Abulyatama, Aceh, Indonesia. 2019