The Effect of Polypropylene Fiber and Steel Fiber on Geopolymer Concrete

One of the environmentally friendly concrete as an alternative to cement concrete in the future is geopolymer concrete which used a cement substitute in the form of fly ash. To prevent premature cracking of the concrete, this study added fiber types such as polypropylene fiber, and steel fiber (dram...

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Main Authors: Niza Widiana, Iman Satyarno, Suprapto Siswosukarto
Format: Article
Language:English
Published: Universitas Negeri Semarang 2023-04-01
Series:Jurnal Teknik Sipil dan Perencanaan
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Online Access:https://journal.unnes.ac.id/nju/jtsp/article/view/40999
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author Niza Widiana
Iman Satyarno
Suprapto Siswosukarto
author_facet Niza Widiana
Iman Satyarno
Suprapto Siswosukarto
author_sort Niza Widiana
collection DOAJ
description One of the environmentally friendly concrete as an alternative to cement concrete in the future is geopolymer concrete which used a cement substitute in the form of fly ash. To prevent premature cracking of the concrete, this study added fiber types such as polypropylene fiber, and steel fiber (dramix), this experiment with 3 variables namely the addition of polypropylene fiber by 0%, 0.40%, 0.80%, 1.2%, steel fiber of 0.25%, 0.50%, 0.75%, 1.00%, as well as a combination of polypropylene fiber and steel fiber (0.4%P;0.50%D), (0.8%P;0.75%D), (1.2%P;1.00%D) of the weight of the concrete. In this study, using a beam specimen measuring 10x10x50 cm, for each percentage of fiber usage there are 2 beam trials. Geopolymer concrete in this study uses a ratio of NaOH and Na2SiO3 is 2:1 and a constant concentration of 10 Molar, to test the Flexural Strength Test of Concrete at the age of 28 days of concrete. The results of the highest average flexural strength of geopolymer concrete without fiber σl = 78.77 kg/cm2, using polypropylene 0.80% σl =50.50 kg/cm2, and 0.25% steel fiber σl =68.87 kg/cm2, the combination of both fibers (P0.4%; D0.25%) σl =65.34 kg/cm2. These results do not produce good workability, thus affecting the decrease in flexural strength. By increasing the ratio A = 0.35 to 0.45, the geopolymer concrete mix produces better workability with the highest average flexural strength of geopolymer concrete with polypropylene fiber 0.8% σl = 80.107 kg/cm2.
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spelling doaj-art-b5dd71b351ea47129b8fba1aa975e0c62025-08-20T02:00:17ZengUniversitas Negeri SemarangJurnal Teknik Sipil dan Perencanaan1411-17722503-18992023-04-01251718010.15294/jtsp.v25i1.4099913771The Effect of Polypropylene Fiber and Steel Fiber on Geopolymer ConcreteNiza Widiana0Iman Satyarno1Suprapto Siswosukarto2Universitas Gadjah MadaUniversitas Gadjah MadaUniversitas Gadjah MadaOne of the environmentally friendly concrete as an alternative to cement concrete in the future is geopolymer concrete which used a cement substitute in the form of fly ash. To prevent premature cracking of the concrete, this study added fiber types such as polypropylene fiber, and steel fiber (dramix), this experiment with 3 variables namely the addition of polypropylene fiber by 0%, 0.40%, 0.80%, 1.2%, steel fiber of 0.25%, 0.50%, 0.75%, 1.00%, as well as a combination of polypropylene fiber and steel fiber (0.4%P;0.50%D), (0.8%P;0.75%D), (1.2%P;1.00%D) of the weight of the concrete. In this study, using a beam specimen measuring 10x10x50 cm, for each percentage of fiber usage there are 2 beam trials. Geopolymer concrete in this study uses a ratio of NaOH and Na2SiO3 is 2:1 and a constant concentration of 10 Molar, to test the Flexural Strength Test of Concrete at the age of 28 days of concrete. The results of the highest average flexural strength of geopolymer concrete without fiber σl = 78.77 kg/cm2, using polypropylene 0.80% σl =50.50 kg/cm2, and 0.25% steel fiber σl =68.87 kg/cm2, the combination of both fibers (P0.4%; D0.25%) σl =65.34 kg/cm2. These results do not produce good workability, thus affecting the decrease in flexural strength. By increasing the ratio A = 0.35 to 0.45, the geopolymer concrete mix produces better workability with the highest average flexural strength of geopolymer concrete with polypropylene fiber 0.8% σl = 80.107 kg/cm2.https://journal.unnes.ac.id/nju/jtsp/article/view/40999geopolymer concrete, polypropylene, steel fiber, flexible strength test.
spellingShingle Niza Widiana
Iman Satyarno
Suprapto Siswosukarto
The Effect of Polypropylene Fiber and Steel Fiber on Geopolymer Concrete
Jurnal Teknik Sipil dan Perencanaan
geopolymer concrete, polypropylene, steel fiber, flexible strength test.
title The Effect of Polypropylene Fiber and Steel Fiber on Geopolymer Concrete
title_full The Effect of Polypropylene Fiber and Steel Fiber on Geopolymer Concrete
title_fullStr The Effect of Polypropylene Fiber and Steel Fiber on Geopolymer Concrete
title_full_unstemmed The Effect of Polypropylene Fiber and Steel Fiber on Geopolymer Concrete
title_short The Effect of Polypropylene Fiber and Steel Fiber on Geopolymer Concrete
title_sort effect of polypropylene fiber and steel fiber on geopolymer concrete
topic geopolymer concrete, polypropylene, steel fiber, flexible strength test.
url https://journal.unnes.ac.id/nju/jtsp/article/view/40999
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