Pengaruh Mikrobakteri Pada Beton Self-Compacting Concrete

Santoso, Nyoto Aprilius (2016) Pengaruh Mikrobakteri Pada Beton Self-Compacting Concrete. Undergraduate thesis, Institut Technology Sepuluh Nopember.

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Abstract

Self-compacting concrete (SCC) adalah beton yang dalam proses pembuatannya tidak memerlukan vibrator dalam proses pemadatannya. Dalam penelitian ini penggunaan superplasticizer (viscoflow) akan ditambahkan dengan black liquor dan mikrobakteri yang bertujuan untuk mengetahui efek penambahan tersebut terhadap beton SCC. Material SCC yang digunakan adalah semen OPC, silica fume, agregat kasar, agregat halus, superplasticizer, mikrobakteri dan black liquor. SCC menggunakan variasi silica fume dengan kadar 0, 5, 7,5, 10% lalu ditambah dengan mikrobakteri dan black liquor sebagai admixture. Beton diuji dengan berbagai pengujian untuk dicari SCC dengan nilai flow yang sesuai serta komposisi untuk mendapatkan kuat tekan dan split yang optimum. Hasil pengujian menunjukkan bahwa kuat tekan paling optimum didapatkan adalah beton dengan substitusi silica fume dengan kadar 5% dari berat semen yang mencapai kuat tekan 71,30MPa, sedangkan penggunaan mikrobakteri pada percobaan ini hanya meningkatkan kuat tekan pada beton tanpa subtitusi silica fume. Penggunaan mikrobateri pada iii beton di penelitian dapat meningkatkan workability dari beton untuk menjadi beton SCC. ======================================================================================================== Self-compacting concrete (SCC) is a concrete that in the mixing process doesn’t need to be vibrated by vibrator. The mixing of SCC itself is controlled by the paste composition, amount of the aggregates, low water content with high usage of superplasticizer (SP). This research is intended to know about the effect of adding the microbacteria with black liquor to SCC. The material that will be used to mix SCC is OPC cement, silica fume, coarse aggregate, fine aggregate, superplasticizer, microbacteria, and black liquor. The concretes have several variations of silica fume consist of 0, 5, 7,5 , 10% will work as the substitution of cement, and then microbacteria and black liquor will be added as admixture. The mixed concrete will be tested by the flow value that is appropriate and continued by compression, split tensile test, and several other tests. The results show that the highest compression strength is at concrete with 5% silica fume substitution of mass of the cement, when using microbacteria in this research shows that it only increase the workability of the concrete.

Item Type: Thesis (Undergraduate)
Additional Information: RSS 620.136 San p-1
Uncontrolled Keywords: self-compacting concrete(SCC), silica fume, agregat kasar, agregat halus, black liquor, mikrobakteri, superplasticizer
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA683 Precast concrete construction. Prestressed concrete construction.
Divisions: Faculty of Civil Engineering and Planning > Civil Engineering > 22201-(S1) Undergraduate Thesis
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 31 Dec 2019 06:25
Last Modified: 31 Dec 2019 06:25
URI: http://repository.its.ac.id/id/eprint/72484

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