Pemanfaatan Spent Bleaching Earth (SBE) dalam Produksi Bata Ringan di Indonesia

Muhammad Rakha', Octaviarto Akmal Putra (2025) Pemanfaatan Spent Bleaching Earth (SBE) dalam Produksi Bata Ringan di Indonesia. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk menganalisis potensi pemanfaatan Spent Bleaching Earth (SBE) sebagai bahan tambahan dalam produksi bata ringan di Indonesia. Penelitian dilakukan dengan mengikuti standar SNI dan ASTM untuk mengevaluasi pengaruh substitusi SBE terhadap sifat fisik dan mekanik bata ringan. Sampel uji yang paling optimal, M_OPC_20_FA_28, adalah mortar dengan ukuran 5x5x5 cm yang menggunakan semen OPC dan variasi substitusi PSBE sebesar 20% terhadap berat semen, dicampur dengan bahan pengembang foaming agent dan dibiarkan curing selama 28 hari. Sampel ini menunjukkan hasil optimal dengan bobot isi 1790,67 kg/m³, tingkat penyerapan air 1,342%, kuat tekan 20,396 MPa, dan tingkat susut pengeringan 0,1701%. Meskipun memenuhi sebagian besar persyaratan SNI, bobot isi sampel ini melebihi batas maksimum yang ditetapkan oleh SNI, yaitu 1400 kg/m³. Untuk mengatasi hal ini, dilakukan penelitian lanjutan dengan mengganti bahan pengembang foaming agent menjadi aluminium powder. Hasil penelitian lanjutan menunjukkan bahwa bobot isi sampel turun menjadi 1496,53 kg/m³, namun tingkat penyerapan air meningkat menjadi 8,41%, kuat tekan menurun menjadi 5,008 MPa, dan tingkat susut pengeringan tetap stabil di 0,1695%. Meskipun bobot isi mengalami penurunan signifikan, hasilnya masih melebihi batas maksimum yang diizinkan oleh SNI. Penelitian lebih lanjut diperlukan untuk mengoptimalkan formulasi bahan pengembang guna memenuhi seluruh standar yang ada.
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This study aims to analyze the potential utilization of Spent Bleaching Earth (SBE) as an additive in the production of lightweight bricks in Indonesia. The research was conducted following SNI and ASTM standards to evaluate the effects of SBE substitution on the physical and mechanical properties of lightweight bricks. The most optimal test sample, M_OPC_20_FA_28, is a mortar measuring 5x5x5 cm that uses OPC cement with a 20% PSBE substitution by cement weight, mixed with a foaming agent and cured for 28 days. This sample demonstrated optimal results with a bulk density of 1790.67 kg/m³, water absorption of 1.342%, compressive strength of 20.396 MPa, and drying shrinkage of 0.1701%. Although it meets most of the SNI requirements, the bulk density of this sample exceeds the maximum limit set by SNI, which is 1400 kg/m³. To address this issue, further research was conducted by replacing the foaming agent with aluminum powder. The follow-up study results showed that the bulk density of the sample decreased to 1496.53 kg/m³, but water absorption increased to 8.41%, compressive strength dropped to 5.008 MPa, and drying shrinkage remained stable at 0.1695%. Despite the significant reduction in bulk density, the results still exceed the maximum limit allowed by SNI. Further studies are needed to optimize the foaming agent formulation to fully comply with the standards.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Spent Bleaching Earth (SBE), Bata ringan, Foaming agent, Aluminium powder, Bobot isi, Tingkat penyerapan air, Kuat tekan, Tingkat susut pengeringan, SNI. Spent Bleaching Earth (SBE), Lightweight bricks, Foaming agent, Aluminum powder, Bulk density, Water absorption, Compressive strength, Drying shrinkage, SNI.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA439 Lightweight concrete. High strength concrete.
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User:	Muhammad Rakha’ Octaviarto Akmal Putra
Date Deposited:	01 Feb 2025 08:02
Last Modified:	01 Feb 2025 08:02
URI:	http://repository.its.ac.id/id/eprint/117356

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