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Submitted
August 12, 2023
Accepted
August 26, 2023
Published
March 25, 2024
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Abstract

The use of concrete on land and around the sea has different treatments, which affect the strength of concrete. In carrying out concrete treatment, pay attention to not only the quality of the water used but also the time and depth of the concrete immersion to produce good quality concrete. This study aims to determine the effect of immersion time and depth using fresh water and seawater on the concrete of compressive strength and to obtain the most optimal depth and time with seawater immersion. The quality of the concrete plan is 42 MPa with cylinder samples with a diameter of 15 cm and a height of 30 cm as many as 70 samples. Immersion is carried out with a treatment duration of 21 days, 28 days, and 56 days with variations in immersion depths of 0, 1/3h, 1/2h, and h. The data needed for this study are the results of compressive strength testing and absorption testing results on concrete, The immersion method used in this study is the water curing method. The research process carried out is by testing the physical properties of aggregates, calculating mix design and material requirement analysis, making test objects and testing fresh concrete, carrying out concrete treatment with water curing immersion methods with fresh water and seawater, conducting absorption and compressive strength testing, and analyzing data. The results showed that the compressive strength of concrete with differences in depth and time using seawater greatly affects the strength of concrete so that it produces higher compressive strength compared to fresh water. This hypothesis is caused by alkaline conditions that can strengthen the reaction of Ca (OH) 2, the formation of Friedel salts in concrete due to chloride content in seawater, and the influence of Sika Viscocrete 3115 N which can withstand carbonation in concrete. So based on all results, concrete with the most optimal seawater immersion at a depth of 1/2h with immersion for 56 days is 73.56MPa with a percentage increase of  19% compared to freshwater immersion.

Keywords

high-quality concrete, compressive strength of concrete, concrete treatment, seawater, immersion time, immersion depth

Article Details

References

  1. Guo, Q., Chen, L., Zhao, H., Admilson, J., & Zhang, W. (2018). The effect of mixing and curing sea water on concrete strength at different ages. In MATEC Web of Conferences (Vol. 142, p. 02004). EDP Sciences.
  2. Wila, A. T., Hunggurami, E., & Nasjono, J. K. (2022). Pengaruh Perawatan Water-Curing Dengan Variasi
  3. Lama Perawatan Dan Tinggi Perendaman Terhadap Kuat Tekan Beton. Jurnal Teknik Sipil, 11(2), 183-188.
  4. Uzda, R., Setiady, M. L., & Suat, R. A. (2021). Studi Ekperimental Variasi Curring Air Laut Terhadap Uji Kuat Tekan Beton Menggunakan Air Laut. KERN: Jurnal Ilmiah Teknik Sipil, 7(1), 35-40.
  5. Nasional. B.S (2000). SNI 03-6468-2000. Tata Cara Perencanaan Campuran Tinggi dengan Semen Portland dengan Abu Terbang. Badan Standarisasi Nasional.
  6. Nasional. B.S (2000). SNI 03-2843-2000. Tata Cara Pembuatan Beton Normal. Badan Standarisasi Nasional
  7. Mulyono, T., 2004. Teknologi Beton, Andi, Yogykakarta.
  8. Nawy, Edward G., 1985. Beton Bertulang. Suatu Pendekatan Dasar, Terjemahan oleh Bambang Suryoatmono, 1990, PT ERESCO, Bandung.
  9. Nasional. B.S (2002). SNI 03-6820-2002. Spesifikasi Agregat Halus untuk Pekerjaan Adukan dan Plesteran dengan Bahan Dasar Semen. Badan Standarisasi Nasional
  10. Standard, A.S.T.M.(2003). ASTM C33M. Standard Specification for Concrete Aggregates, Annual Books of ASTM Standards USA: Association of Standard Testing Materials.
  11. Mulyono, T., 2015, Teknologi Beton : Dari Teori ke
  12. Praktek, UNJ, Jakarta
  13. Tjokrodimuljo, 2007. Teknologi Beton. Biro penerbit, Yogyakarta
  14. Mulyono, T., 2005. Teknologi Beton, Andi, Yogykakarta.
  15. Nasional. B.S (2002). SNI 03-6861.1-2002. Spesifikasi Bahan Bangunan Bagian A (Bahan Bangunan Bukan Logam). Badan Standarisasi Nasional
  16. Standard, A.S.T.M.(2020). ASTM C494-82. Standard Specification for Chemical Admixtures, Annual Books of ASTM Standards USA: Association of Standard Testing Materials
  17. Nasional. B.S (2011). SNI 03-1971-2011. Metode Pengujian Kadar Air Agregat. Badan Standarisasi Nasional
  18. Nasional. B.S (2008). SNI 2816: 2014. Metode Uji Bahan Organik dalam Agregat Halus untuk Beton. Badan Standarisasi Nasional
  19. Nasional. B.S (2014). SNI 2816: 2014. Metode Uji Bahan Organik dalam Agregat Halus untuk Beton. Badan Standarisasi Nasional
  20. Nasional. B.S (2008). SNI 1973:2008. Cara Uji Berat Isi, Volume Produksi Campuran, dan Kadar Udara Beton. Badan Standarisasi Nasional
  21. Standard, A.S.T.M.(2017). ASTM C-29M-03. S Standard Test Method for Bulk Density (Unit Weight) and Voids in Aggregates, Annual Books of ASTM Standards USA: Association of Standard Testing Materials
  22. Nasional. B.S (2008). SNI 1972:2008. Cara Uji Slump Beton. Badan Standarisasi Nasional
  23. Nasional. B.S (2012). SNI ASTM C136:2012. Metode Uji untuk Analisis Saringan Agregat Halus dan Agregat Kasar. Badan Standarisasi Nasional
  24. Nasional. B.S (2008). SNI 1969:2008. Metode Uji Berat Jenis dan Penyerapan Air. Badan Standarisasi Nasional
  25. Nasional. B.S (2008). SNI 1970:2008. Cara Uji Berat Jenis dan Penyerapan Air Agregat Halus. Badan Standarisasi Nasional
  26. Nasional. B.S (2013). SNI 4810:2013. Tata Cara Pembuatan dan Perawatan Spesimen Uji Beton di Lapangan. Badan Standarisasi Nasional
  27. Nasional. B.S (2011). SNI 1974:2011. Cara Uji Kuat Tekan Beton dengan Benda Uji Silinder. Badan Standarisasi Nasional