PENGARUH KADAR AKTIVATOR 0,43 DAN RASIO SS/SH (2,0-3,0) PADA BETON GEOPOLIMER DENGAN BAHAN DASAR FLY ASH TERHADAP KUAT TEKAN

Agus Setiya Budi, Setiono Setiono, Masdihar Akbar

Abstract


Abstract

An alternative to reduce carbon dioxide emissions is to replace cement with fly ash in geopolymer concrete. Geopolymer concrete is an alternative to reducing carbon dioxide emissions by replacing 100% cement with other materials such as fly ash and a combination of SS (sodium silicate) and SH (sodium hydroxide). This research can provide knowledge on how the slump and compressive strength of geopolymer concrete produced with the use of alkali activator: fly ash ratio of 0.43. The test object consisted of 5 samples of size 15 cm x 30 cm with SS/SH variation of 2.0; 2.5; 3.0. The workability test was conducted using the slump test, while the compressive strength was conducted using a compression testing machine. The slump test results of variations 2.0; 2.5; 3.0 were 18.5 cm, 18 cm, and 17 cm, respectively. In addition, the compressive strength values were 40.78 MPa; 44.97 MPa; 45.80 MPa, respectively.

 

Keywords—alkali activator, geopolymer concrete, fly ash, compressive strength.


Full Text:

PDF

References


A. Cakti, “PUPR sebut tiga tren kebutuhan beton dalam pembangunan infrastruktur,” antaranews.com. Accessed: Jun. 04, 2024. [Online]. Available: https://www.antaranews.com/berita/3653016/pupr-sebuttiga-tren-kebutuhan-beton-dalam-pembngunan-infrastruktur

M. Amran et al., “Fly ash-based eco-efficient concretes: A comprehensive review of the short-term properties,” Materials. 2021. doi: 10.3390/ma14154264.

A. D. Anugrah, “Pengaruh Variasi Naoh Terhadap Na2sio3 Terhadap Kuat Tekan Dry Geopolymer Mortar Metode Dry Mixing Pada Kondisi Rasio Abu Terbang Terhadap Aktivator 4:1,” Rekayasa Tek. Sipil, vol. 3, no. 3, pp. 1–9, 2018, [Online]. Available: https://jurnalmahasiswa.unesa.ac.id/index.php/23/article/view/26025/23843

PUPR, “Persyaratan Umum Bahan Bangunan Di Indonesia (PUBI - 1982),” Direktorat Penyelid. Masal. Bangunan, 2014.

SNI 2847, “SNI 2847:2019 Persyaratan beton struktural untuk bangunan gedung dan penjelasan,” Sni 2847-2019, 2019.

R. Miftahul, Ketut Aswatama Wiswamitra, and Dwi Nurtanto, “Perbandingan Metode Pembuatan Beton Geopolymer Terhadap Sifat Mekanik dan Porositas,” Siklus J. Tek. Sipil, vol. 8, no. 1, pp. 136–147, 2022, doi: 10.31849/siklus.v8i1.9250.

P. E. Panjaitan and L. Herlina, “Review Faktor - Faktor yang Mempengaruhi Karakteristik Kuat Tekan Beton Geopolimer,” J. Rekayasa Konstr. Mek. Sipil, vol. 03, no. 02, pp. 65–79, 2020, doi: 10.54367/jrkms.v3i2.858.

J. J. Ekaputri and T. Triwulan, “Sodium sebagai Aktivator Fly Ash, Trass dan Lumpur Sidoarjo dalam Beton Geopolimer,” J. Tek. Sipil, vol. 20, no. 1, p. 1, 2013, doi: 10.5614/jts.2013.20.1.1.

H. U. Ahmed et al., “Compressive strength of sustainable geopolymer concrete composites: A state-of-the-art review,” Sustain., vol. 13, no. 24, 2021, doi: 10.3390/su132413502.

A. K. Rao and D. R. Kumar, “Materials Today : Proceedings Effect of various alkaline binder ratio on geopolymer concrete under ambient curing condition,” Mater. Today Proc., no. xxxx, pp. 10–15, 2020, doi: 10.1016/j.matpr.2020.03.682.

SNI 03-1972-1990, “Metode Pengujian Slump Beton,” Badan Standar Nas. Indones., vol. 1, no. ICS 91.100.30, pp. 1–12, 1990.

S. G. K, A. S. O, and M. J. N, “Investigating The Potential Use of Tuff Aggregates to Produce Lightweight Concrete,” Int. J. Sci. Res. Publ., 2020, doi: 10.29322/ijsrp.10.09.2020.p10555.

R. Amelia, S. Suhendra, and K. R. Amalia, “Hubungan Faktor-Faktor yang Mempengaruhi Kuat Tekan Beton,” J. Talent. Sipil, vol. 4, no. 2, p. 225, 2021, doi: 10.33087/talentasipil.v4i2.79.

Nuryadi, T. D. Astuti, E. S. Utami, and M. Budiantara, Buku Ajar Dasar-dasar Statistik Penelitian. 2017.

P. Nath and P. K. Sarker, “Effect of GGBFS on setting, workability and early strength properties of fly ash geopolymer concrete cured in ambient condition,” Constr. Build. Mater., vol. 66, pp. 163–171, 2014, doi: 10.1016/j.conbuildmat.2014.05.080.




DOI: https://doi.org/10.35308/jts-utu.v10i2.11535

Refbacks

  • There are currently no refbacks.


Copyright (c) 2025 Agus Setiya Budi

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