ANALISIS KETAHANAN BETON GEOPOLIMER BERBASIS FLY ASH TERHADAP ASAM DAN AIR LAUT

SHOBIRIN, KHAIRUL and Adhitya, Bimo Brata (2024) ANALISIS KETAHANAN BETON GEOPOLIMER BERBASIS FLY ASH TERHADAP ASAM DAN AIR LAUT. Undergraduate thesis, Sriwijaya University.

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Abstract

Conventional concrete generally cannot reduce carbon dioxide emissions, so alternative environmentally friendly options are needed. Geopolymer concrete emerges as an option to reduce the impact of industrial waste, with fly ash producing 80-90% less carbon dioxide than Portland cement. Fly ash-based geopolymer concrete also has high resistance to corrosion in aggressive environments compared to conventional concrete. This research was conducted to determine the resistance of geopolymer concrete using PT Pusri fly ash. Geopolymer concrete specimens were subjected to immersion testing in acid and seawater for 28 days. The test specimens were cube-shaped concrete with dimensions of 5 × 5 × 5 cm with a FA/AA ratio of 2 and a Na2SiO3/NaOH ratio of 3. The NaOH molarities used were 13, 15, and 17 mol. The immersion test results show that geopolymer concrete samples immersed in seawater have the highest average resistance at 54.1 MPa for 15 mol concrete. Meanwhile, immersion in sulfuric acid and hydrochloric acid experienced significant decreases, with the highest still from 15 mol concrete, averaging 33.3 MPa for sulfuric acid and 25.8 MPa for hydrochloric acid. It can be concluded that geopolymer concrete cannot withstand high acid attack.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Beton, Fly Ash, Beton Geopolimer, Perendaman Asam, Kuat Tekan
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA165 Engineering instruments, meters, etc. Industrial instrumentation
Divisions:	03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User:	Khairul Shobirin
Date Deposited:	16 May 2024 01:45
Last Modified:	16 May 2024 01:45
URI:	http://repository.unsri.ac.id/id/eprint/144034

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