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Hasil Pencarian

Ditemukan 7 dokumen yang sesuai dengan query
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Andika Damayanti Kartikasari
Perbandingan kebocoran mikro restorasi kelas I resin komposit menggunakan teknik bulk-fill dengan aktivasi sonik, tanpa aktivasi sonik dan inkremental (eksperimental laboratorik) = Microleakage comparison in class I composite restorations filled by using sonic-activated bulk, bulk without sonic activation and incremental techniques
" Latar Belakang: Tolok ukur baik tidaknya adaptasi tepi restorasi adalah tidak adanya kebocoran pada perbatasan restorasi dan gigi Restorasi resin komposit dapat menimbulkan kebocoran mikro akibat kontraksi saat polimerisasi sehingga terdapat celah antara dinding kavitas dengan resin komposit Penelitian ini bertujuan untuk menganalisis perbedaan tingkat kebocoran mikro dinding restorasi kelas I antara antara RK bulk fill dengan aktivasi sonik bulk fill tanpa aktivasi sonik dan inkremental Metode: Kavitas kelas I dipreparasi pada dua puluh tujuh ... "
Jakarta: Fakultas Kedokteran Gigi Universitas Indonesia, 2012
T32988
UI - Tesis Membership  Universitas Indonesia Library
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Adi Saputra Hendri L.
Studi perilaku susut dan kuat tekan pada beton dengan menggunakan serat kawat bendrat
" Banyak penelitian yang telah menggunaka serat baja dalam campuran beton normal dan telah dilakukan dalam beberapa negara bagian di dunia. Namun, dikarenakan harga serat kawat baja itu sangat mahal di Indonesia, maka penggunaan serat kawat bendrat untuk menggantikan serat baja itu dan menggunakannya dalam campuran beton yang diteliti dalam penelitian ini. Serat kawat bendrat ini berdiameter 0,8mm dipotong dengan panjang 30 mm dan digunakan dalam campuran beton sebagai tulangan mikro beton yang diprediksi mampu meningkatkan ... "
Depok: Fakultas Teknik Universitas Indonesia, 2011
S137
UI - Skripsi Open  Universitas Indonesia Library
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Effect of Saturated lightweight Sand Substitution on Shrinkage in 0.35 w/b Concrete
" internal curing is promoted as a way tpo mitigate autogenous shrinkage in high-performance concrete having a low water binder ratio (w/b). Different methods of internal curing have been proposed. In this study, the effect of substituting 20% of normalweight sand by an equal mass of lightweight sand on the development of shrinkage was investigated on a 0.35 w/b high performance concrete . Shrinkage was monitored using vibrating wire gauges cast at the center of ... "
507 ACI 104:1 (2007)
Artikel Jurnal  Universitas Indonesia Library
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Properties of self Consolidating concrete for Prestressed Members
" Self-Consolidating Concrete (SCC) mixtures for use in Prestressed Concrete applications are evaluated in this paper . Twenty one SCC mixtures were made under laboratory conditions with varying water to cementitious materials ratios, sand to total aggregate rations, and cementitious materials combinations (type III cement , class C fly ash, ground-granular blast-furnance slag, and silica fume). The SCC mixtures archived prestress transfer compressive strengths between 5470 and 9530 psi (38 and 66 MPa). The moduli ... "
507 ACI 104:1 (2007)
Artikel Jurnal  Universitas Indonesia Library
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Chatarina Niken
Long term deformation of beams and columns of high performance concrete
" The columns of a building must be stronger than the beams. The aim of this study is to obtain the cause of the long-term deformation difference by shrinkage between the beams and columns of high performance concrete with compressive strength of 60 MPa. This research was done experimentally in Indonesia during 410 days. Specimens measuring 150 mm × 150 mm × 600 mm were used, 3 pieces for the beams and 2 pieces for the ... "
Depok: Faculty of Engineering, Universitas Indonesia, 2017
UI-IJTECH 8:5 (2017)
Artikel Jurnal  Universitas Indonesia Library
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Junaidi Sidiq
Analisis struktur bangunan gedung bertingkat tinggi dengan meninjau tahapan konstruksi dan perubahan karakteristik material sebagai fungsi waktu = Structural analysis of high rise building considering construction stage and time dependent material behavior / Junaidi Sidiq
" In high-rise building, inelastic deformation due to concrete creep and shrinkage can cause internal forces redistribution. This study investigates the influence of the differential of loading method, age at loading, and column reinforcement ratio to the internal forces, differential shortening of vertical structural component, and beam-column bending moment redistribution. The results of the study indicate that direct loading method has greater structural responses than sequential one. The maximum negative differential shortening reach -74.87 mm and ... "
2015
S58819
UI - Skripsi Membership  Universitas Indonesia Library
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Simulasi Numerik Pada Distribusi Temperatur Proses Pembekuan
" The directional solidification which is not toward to riser causes the shrinkage defect. This defect can be predicted by investigating the temperature distribution in riser or casting products. The goal of this research is to examine the temperature distribution using Finite Element Software (ANSYS) and then an ad hoc experiment has been performed to verify the result of the simulation, especially the existences cf shrinkage The simulation is carried out by sand casting process using pure aluminum. This research uses enthalpy ... "
Jurnal Teknologi, 15 (3) September 2001 : 286-295, 2001
JUTE-15-3-Sep2001-286
Artikel Jurnal  Universitas Indonesia Library