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

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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.

Availability
Inventory Code Barcode Call Number Location Status
2407002764T144034T1440342024Central Library (References)Available but not for loan - Not for Loan
Detail Information
Series Title
-
Call Number
T1440342024
Publisher
Indralaya : Prodi Teknik Sipil dan Perencanaan, Fakultas Teknik Universitas Sriwijaya.,
Collation
xi, 93 hlm.; ilus.; 29 cm
Language
Indonesia
ISBN/ISSN
-
Classification
624.07
Content Type
Text
Media Type
unmediated
Carrier Type
-
Edition
-
Subject(s)
Prodi Teknik Sipil dan Perencanaan
Specific Detail Info
-
Statement of Responsibility
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No other version available

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