Pengaruh serbuk kaca dan silica fume terhadap high strength paste dan beton berserat

Limantono, Henry (2015) Pengaruh serbuk kaca dan silica fume terhadap high strength paste dan beton berserat. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Serbuk kaca merupakan material amorf dengan kandungan silica lebih dari 72% dan berpotensi menjadi material pozzolan. Selain itu, diketahui bahwa silica fume dengan kadar 10 – 26% dari berat binder dapat meningkatkan kuat tekan beton. Faktor air binder yang semakin rendah dibutukan untuk meningkatkan kuat tekan beton. Serat PVA (Polyvinyl Alcohol) dapat meningkatkan kuat tekan dan kapasitas regangan beton. Material campuran pasta mutu tinggi yang digunakan dalam penelitian ini adalah semen OPC, serbuk kaca, dan silica fume. Metode yang digunakan dalam penelitian ini adalah substitusi berat semen dengan serbuk kaca. Kemudian berat serbuk kaca disubstitusi lagi dengan silica fume. Kegitatan penelitian dimulai dari analisa material semen, serbuk kaca, dan silica fume. Kemudian dibuat pasta dasar dengan substitusi semen oleh serbuk kaca sebesar 10%, 15%, 20%, dan 25% dari berat semen. Serbuk kaca tersebut sebagian diganti dengan silica fume sebanyak 20%, 40%, dan 60% dari berat serbuk kaca. Diambil 5 pasta dasar dengan kuat kuat tekan tertinggi di umur 28 hari dan 1 variabel kontrol (100% semen) untuk dibuat beton berserat menggunakan serat PVA. Serat PVA yang digunakan sebanyak 2% dari volume benda uji. iv Dari hasil penelitian didapatkan komposisi pasta dasar dengan kuat tekan tertinggi pada umur 28 hari sebesar 93.26 MPa (PA10-40) dan beton berserat sebesar 99.85 MPa (FP15-60). Dari hasil analisa, diketahui bahwa ada kecenderungan kuat tekan pasta dasar dan beton berserat masih meningkat setelah umur 28 hari. ========== Glass powder is an amorphous material with silica content more than 72% and potentially considered as pozzolanic material. Moreover, it was known that silica fume with content 10 – 26% from binder can increases the compressive strength of concrete. Low water to binder ratio is needed to increase the strength. PVA (Polyvinyl Alcohol) fiber is proved to increase both compressive and tensile strain capacity. In this research, mixture composition of high strength paste are ordinary portland cement, glass powders, and silica fume. Cement weight was replaced with glass powder. Then, the weight of glass powder was replaced by silica fume. All materials were analyszed for XRD, XRF, SEM, and reactivity. Basic paste with cement replacement of 10%, 15%, 20%, and 25% by glass powder. Some of glass powder weight were replaced by 20%, 40%, and 60% of silica fume. Five pastes with the highest compressive strength and control variable (100% cement) at 28 days were taken to make fibrous paste using PVA fibers. PVA fibers content were kept constant of 2% by specimen volume. From the results, the composition basic paste with the highest compressive strength at 28 days was 93.26 MPa (PA10-40) and from fiber paste was 99.85 MPa (FP15-60). From the analysis, it was known that there was a strong tendency the compressive strength of basic paste and fiber paste still increase after 28 days.

Item Type: Thesis (Undergraduate)
Additional Information: RSS 620.136 Lim p
Uncontrolled Keywords: beton berserat, beton mutu tinggi, serbuk kaca, serat PVA (Polyvinyl Alcohol), silica fume, fiber concrete, glass powder, high strength concrete, polyvinyl alcohol (PVA fiber), silica fume
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA444 Reinforced concrete
Divisions: Faculty of Architecture, Design, and Planning > Architecture > 23001-(S3) PhD Thesis
Depositing User: - Davi Wah
Date Deposited: 10 May 2019 04:06
Last Modified: 10 May 2019 04:06
URI: http://repository.its.ac.id/id/eprint/62993

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