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All Journal TEKNIK Jurnal Riset Teknologi Industri
Muhammad Al Muttaqii
Indonesian Institute of Sciences
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Pengaruh Variasi Konsentrasi NaOH Pada Zeolit Alam Lampung Terhadap Produk Silika Muhammad Al Muttaqii
Jurnal Riset Teknologi Industri Vol.15 No.2 Desember 2021
Publisher : Balai Riset dan Standardisasi Industri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26578/jrti.v15i2.6950

Abstract

Zeolit alam merupakan Kristal alumino silikat dengan struktur kerangka tiga dimensi yang dibentuk oleh tetrahedral alumina () dan silika (). Proses produksi silika pada zeolit alam dilakukan melalui metode sol-gel dengan penambahan larutan NaOH. Penelitian ini bertujuan mengetahui variasi konsentrasi larutan NaOH dan zeolit alam terhadap produk silica melalui proses sol-gel. Metode produk sisilika dilakukan dengan membuat larutan NaOH dengan variasi konsentrasi 0,2 M, 0,4 M, 0,6 M, 0,8 M, dan 1 M. Zeolit alam divariasikan dengan massa 15 gr, 30 gr dan 45 gr. Hasil produk silica terbaik diperoleh pada konsentrasi NaOH 1 M dan massa zeolit alam 15 gr dengan persentase 97,738 %. Kandungan senyawa kimia dalam setiap produk silica didominasi SiO2. Fasa yang terbentuk pada produk silica didominasi oleh fasa tridymite (Si24.00O48.00), Cristobalite (Si4.00O8.00), Coesite (Si16.00O32.00), Moganite (Si12.00O24.00), Quartz (Si3.00O6.00) dan Stishovite (Si2.00O4.00).Kata kunci:NaOH, zeolitalam, silika
Analysis of Fine Glass Waste Addition as a Filler Material for Sand Substitution on the Properties of Mortar Products Suharto Suharto; Muhammad Amin; Muhammad Al Muttaqii; Roniyus Marjunus; Nuzullia Fitri; Suhartono Suhartono
TEKNIK Vol 42, No 3 (2021)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v42i3.32686

Abstract

Inorganic glass waste can replace sand in mortar production due to its SiO2 content being greater than 70%. This study aims to analyze the increase in mortal product agility due to the substitution of sand and reducing environmental pollution. The fine glass waste used is restrained on 80 and 120 mesh sieves. The fine glass waste substitution variations are 0, 10, 20, 30, 40, and 50% of the sand weight. The results show that fine glass waste could be used as a material for sand substitution because of the content of SiO2 of 73.8%. The results from XRD indicate that the phase of fine waste glass is amorphous. The mortar was printed with a 5x5x5 cm cube mold, and it was soaked for 7, 14, and 21 days. Based on the results, the compressive strength with a high value of 13.58 MPa at 20% fine glass waste substitution and 120 mesh. The density of 2.8±0.8 g/cm3, porosity 4.40±0.001%, and absorption 2.83±0,0009%. The compressive strengths, density, porosity, absorption, XRF and XRD characterization were evaluated. The results showed that the SiO2 compound in waste glass with the right composition of 20% could significantly increase the compressive strength. Phase formation of Calcite (CaCO3), Quartz (SiO2), and Portlandite (Ca(OH)2) was formed from the results of XRF characterization
Co-Authors Muhammad Amin Nuzullia Fitri Roniyus Marjunus Suharto Suharto Suhartono Suhartono