Effect of Micro Lime on The Ambient Cured Sugarcane Bagasse Ash-Based Geopolymer Concrete

Keithy Kamau; Benard  Omondi; Janet  Oyaro

doi:10.28932/jts.v19i2.7303

Penulis

Keithy Kamau Masinde Muliro University of Science and Technology
Benard Omondi Masinde Muliro University of Science and Technology
Janet Oyaro Masinde Muliro University of Science and Technology

DOI:

https://doi.org/10.28932/jts.v19i2.7303

Kata Kunci:

Micro lime, Beton Geopolimer, Penyerapan, Kuat Tekan, Green Concrete

Abstrak

Beton geopolymer (geopolymer concrete) telah menjadi pengganti ideal beton Ordinary Portland Cement (OPC) dalam memproduksi green concrete. Bahan pengikat pada beton geopolimer adalah pasta semen yang terbuat dari Aluminosilikat amorf dan diaktivasi dengan larutan Alkali. Proses geopolimerisasi dimulai pada suhu tinggi. Oleh karena itu, proses curing memerlukan suhu tinggi. Metode pengawetan ini membatasi penerapan beton geopolimer dalam industri konstruksi. Dalam campuran geopolimer, keberadaan ion Kalsium memungkinkan pembentukan gel Kalsium Aluminat Silikat dan Kalsium Silikat Hidrat, sehingga memungkinkan proses pengeringan pada suhu sekitar. Oleh karena itu, penelitian ini menyelidiki pengaruh micro lime pada beton geopolimer berbahan dasar Abu Ampas Tebu (Sugarcane Bagasse Ash-Based, SCBA). Micro lime yang ditambahkan pada beton geopolimer sebanyak 1, 3, 5 dan 7% berat SCBA. Desain campuran didasarkan pada Algoritma Densified Mix Design. Pengujian yang dilakukan meliputi compressive strength dan water absorption. Ambient curing pada beton geopolimer berbasis SCBA dicapai dengan 1% micro lime. Compressive strength meningkat dengan bertambahnya micro lime, 10N/mm2 pada 1%, menjadi 18,25N/mm2 pada micro lime 7%. Beton geopolimer pada ambient temperature-cured dengan micro lime 3% memiliki tingkat penyerapan air terendah

Unduhan

Data unduhan belum tersedia.

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