Dwistira, Daffa (2024) Analisis Pengaruh Penambahan Karbon Aktif Terhadap Kuat Tekan Dan Kemampuan CO2 Adsorpsi Pada Mortar Geopolimer Berbasis Fly Ash Dan GGBFS. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Karbon aktif merupakan bahan yang memiliki struktur pori-pori yang sangat besar dengan diameter pori sebesar 10-200 Å dan surface area berkisar antara 300-3500 m2/g. Struktur pori-pori yang sangat besar dan surface area yang sangat luas berfungsi untuk menangkap CO₂ di lingkungan sekitar. Maka dari itu, karbon aktif dimanfaatkan sebagai material dalam pembuatan mortar geopolimer yang berfungsi untuk membuat mortar geopolimer memiliki pori-pori sehingga dapat menangkap CO2. Pada penelitian ini, akan dilakukan pembuatan mortar geopolimer berbasis fly ash dan ground granulated blast furnace slag (GGBFS) dengan menggunakan larutan alkali NaOH 16 M dan Na2SiO3 serta variasi penambahan karbon aktif 5, 10, 15, 20, dan 25%wt. Tujuan penelitian ini adalah untuk menganalisis pengaruh penambahan karbon aktif terhadap kuat tekan dan CO2 adsorpsi pada mortar geopolimer. Material yang digunakan pada penelitian ini diuji karakterisasi dengan fourier-transform infrared spectroscopy (FTIR), Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX), X-Ray Fluorescence (XRF), dan X-ray diffraction (XRD) serta diuji Brunauer-Emmet-Teller (BET) untuk karbon aktif. Juga dilakukan uji SEM-EDX, XRD, FTIR, densitas, penyerapan air, kuat tekan dan pengujian CO₂ adsorpsi pada benda uji mortar geopolimer. Dari hasil penelitian, diperoleh nilai densitas mortar berdasarkan ASTM C905 mengalami penurunan seiring dengan meningkatnya persentase penambahan karbon aktif dan menurunnya persentase penambahan GGBFS, dengan nilai maksimum didapatkan pada variasi F75G20K5 sebesar 2,44 g/cm3. Nilai penyerapan air mortar berdasarkan ASTM C1403 memiliki nilai maksimum pada variasi F75G5K20 sebesar 8-72 g/100 cm2. Kuat tekan mortar berbanding lurus dengan nilai densitas, dengan nilai maksimum didapatkan pada variasi F75G20K5 sebesar 33,9 MPa. Persentase pertambahan massa setelah dilakukan adsorpsi CO2 memiliki nilai yang berbanding terbalik dengan nilai kuat tekan dan densitas, dengan nilai maksimum didapatkan pada variasi F75G5K20 sebesar 1,39% massa.
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Activated carbon is a material that has a very large pore structure with a pore diameter of 10-200 Å and a large surface area of 300-3500 m2/g.. The very large pore structure and very large surface area function to capture CO₂ in the surrounding environment. Therefore, activated carbon is used as a material in making geopolymer mortar which functions to make the geopolymer mortar have pores so that it can capture CO2. In this research, geopolymer mortar based on fly ash and ground granulated blast furnace slag (GGBFS) will be made using alkaline solutions of 16 M NaOH and Na2SiO3 and variations in the addition of 5, 10, 15, 20 and 25% activated carbon. The aim of this research is to analyze the effect of adding activated carbon on the compressive strength and CO2 adsorption of geopolymer mortar. The materials used in this research were tested for characterization using Fourier-Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX), X-Ray Fluorescence (XRF), and X-ray Diffraction (XRD) and tested Brunauer-Emmet-Teller (BET). for activated carbon. SEM-EDX, XRD, FTIR, density, air absorption, compressive strength and CO₂ adsorption tests were also carried out on geopolymer mortar test specimens. From the research results, it was found that the mortar density value based on ASTM C905 decreased along with the increase in the percentage of active carbon addition and the decrease in the percentage of addition of GGBFS, with the maximum value obtained in the F75G20K5 variation being 2,44 g/cm3. The water absorption value of mortar based on ASTM C1403 has a maximum value in the F75G5K20 variation of 8-72 g/100 cm2. The compressive strength of mortar is directly proportional to the density value, with the maximum value obtained in the F75G20K5 variation of 33,9 MPa. The percentage increase in mass after CO2 adsorption has a value that is inversely proportional to the compressive strength and density values, with the maximum value obtained in the F75G5K20 variation being 1.39% mass.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | CO2, Fly Ash, GGBFS, Karbon Aktif, Kuat Tekan, Mortar Geopolimer, Activated Carbon, CO2, Compressive Strength, Fly Ash, GGBFS, Geopolymer Mortar |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD427.F58 Fly ash T Technology > TD Environmental technology. Sanitary engineering > TD883.5 Air--Pollution T Technology > TH Building construction T Technology > TH Building construction > TH1461 Concrete construction. T Technology > TH Building construction > TH880 Sustainable buildings. Sustainable construction. Green building |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Daffa Dwistira |
| Date Deposited: | 05 Feb 2024 08:11 |
| Last Modified: | 05 Feb 2024 08:11 |
| URI: | http://repository.its.ac.id/id/eprint/106105 |
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