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TUGAS MATA KULIAH PEMODELAN UMUR LAYAN
D o s e n P e n g a m p u :
P r o f . S A . K r i s t i a w a n S T . , M . S c . , P h . D
Oleh :
Rendy Dwi Pangesti (S941508011)
MAGISTER PEMELIHARAAN DAN REHABILITASI INFRASTRUKTURUN IV E RSIT A S SEB E L AS MA RE T
S U R A K A R T A2016
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1. Menentukan umur layan “External coating for reinforced concrete”
a. RSL = Yo 15 tahun
b. Kualitas material [Faktor O] = 1,0
c. Lingkungan luar [Faktor D]
- Temperature tahunan (15-20%) = 1,5 (Tabel 1)
- Kelembaban udara tahunan (65%) = 1,5 (Tabel 1)
- Curah hujan tahunan (1200 mm) = 2,0 (Tabel 1)
- Total irradiation (2700 kcal/m²/day) = 2,0 (Tabel 1)
Faktor [D] = 1,5 + 1,5 + 2,0 + 2,0 = 7,0
[Faktor D] = 1,1 (Tabel 2)
d. Aplikasi di External Wall [Faktor B]
Ditentukan East → Ordinary External Wall = 1,0 (Tabel 3)
e. Faktor pelaksanaan [Faktor C]
- Faktor Eksekusi;
Manager → Not qualified, 1st class painter = 0,9 (Tabel 5)
Coating → inadequate ambient humidity = 0,7 (Tabel 6)
Proses pekerjaan → appropriate = 1,2 (Tabel 7)
Lingkungan pekerjaan → Slightly inadequate = 0,8 (Tabel 8)
- Faktor inspeksi → kondisi substrate dan system coating = 0,8
[Faktor C] = Ekseskusi → Inspeksi
= (0,9 + 0,7 + 1,2 + 0,8 ) → 0,8
= (3,6) → 0,8
= Tabel 9 (3,6→1,2) → 0,8
= 1,2 → 0,8
= 1,0 (Tabel 4)
f. Faktor Maintenance [Faktor M] = 0,85
Y = Yo X O X D X B X C X M
= 15 X 1 X 1,1 X 1,0 X 1,0 X 0,85
= 14, 025 Tahun