EXPERIMENTAL STUDY ON FLEXURAL BEHAVIOR OF THE SELF-COMPACTING CONCRETE WITH ...
Mektan 4
1. TUGAS IV MEKANIKA TANAH I
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SOAL 1
No Massa Tanah % Tanah
Ayakan Diameter Tertahan Tertahan % Tanah Lolos
Pada Tiap
USA ayakan Pada Tiap Ayakan Ayakan Pada Tiap Ayakan
(mm) (gr) (gr) (gr)
.(1) .(2) .(3) .(4) .(5)
4 4.75 0 0 100
10 2 21.6 4.8 95.2
20 0.85 49.5 11 84.2
40 0.425 102.6 22.8 61.4
60 0.25 89.1 19.8 41.6
100 0.15 95.6 21.24 20.36
200 0.075 60.4 13.42 6.93
pan 31.2 6.93 0
Total 450
DISTRIBUSI BUTIRAN
%Lolos
100
90
80
70
D
60 60
50
40
D
30 30
20
D
10 10
0
0.01 0.09 0.1 0.19 0.4 1 10
Diameter Butiran (mm)
Dia
(mm) Cu Cc
D10 0.09 4.4 1.00
D30 0.19
D60 0.4
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SOAL 2
Diketahui : D10 = 0.1 mm
D30 = 0.41 mm
D60 = 0.62 mm
Ditanya : Koefisien Keseragaman (CU) dan Koefisien Gradasi (CC)
Jawab:
D
C = 60 = 0.62 = 6.2
U
D
10 0.1
(D )
2
C (0.41) 2
30
C
=
D xD
=
= 2.711
60 10 0.62x0.1
SOAL 3
Diketahui : D10 = 0.082 mm
D30 = 0.29 mm
D60 = 0.51 mm
Ditanya : Koefisien Keseragaman (CU) dan Koefisien Gradasi (CC)
Jawab:
CU=
D
60=
0.51
=6.222
D100.082
CC=
(D )
2
(0.29) 2
= 2.01130
=
D xD
60 10
0.51x0.82
3. TUGAS IV MEKANIKA TANAH I
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SOAL 4
No Massa Tanah % Tanah
Ayakan Diameter Tertahan Tertahan % Tanah Lolos
Pada Tiap
USA ayakan Pada Tiap Ayakan Ayakan Pada Tiap Ayakan
(mm) (gr) (gr) (gr)
.(1) .(2) .(3) .(4) .(5)
4 4.75 0 0 100
6 3.35 30 6 94
10 2 48.7 9.74 84.26
20 0.85 127.3 25.46 58.8
40 0.425 96.8 19.36 39.44
60 0.25 76.6 15.32 24.12
100 0.15 55.2 11.04 13.08
200 0.075 43.4 8.68 4.40
pan 22 4.40 0.00
Total 500
DISTRIBUSI BUTIRAN
%Lolos
D
60
D
30
D
10
0.01
100
90
80
70
60
50
40
30
20
10
0.31 0 0.95
0.1
0.125
1 10
Diameter Butiran (mm)
Dia
(mm) Cu Cc
D10 0.125 7.6 0.81
D30 0.31
D60 0.95
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SOAL 5
No Massa Tanah % Tanah
Ayakan Diameter Tertahan Tertahan % Tanah Lolos
Pada Tiap
USA ayakan Pada Tiap Ayakan Ayakan Pada Tiap Ayakan
(mm) (gr) (gr) (gr)
.(1) .(2) .(3) .(4) .(5)
4 4.75 0 0 100
6 3.35 0 0 100
10 2 0 0 100
20 0.85 9.1 1.82 98.18
40 0.425 249.4 49.88 48.3
60 0.25 179.8 35.96 12.34
100 0.15 22.7 4.54 7.80
200 0.075 15.5 3.10 4.70
pan 23.5 4.70 0.00
Total 500
DISTRIBUSI BUTIRAN
100
90
80
70
D
%Lolos
60
D
60
50
40
30 30
20
D
10 10
0.185 0.325 0.5 0
0.01 0.1 1 10
Diameter Butiran (mm)
Dia
(mm) Cu Cc
D10 0.185 2.7 1.14
D30 0.325
D60 0.5
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SOAL 6
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 92.1
60 0.25 85.8
0.15 77.3
200 0.075 62
0.04 50.80
0.02 41.00
0.01 34.30
0.006 29.00
0.002 23.00
DISTRIBUSI UKURAN BUTIRAN SISTEM
MIT
%Lolos
100 0.002 0.06 2
90
80
70
60
50 58%
40
30
20 23%
10
0 Ukuran Butiran (mm)
0.001 0.01 0.1 1 10
Clay Lanau (Silt ) Pasir (Sand) Kerikil(Gravel )
Persentase Butiran
Menurut Sistem MIT
Jenis Tanah %
Gravel 0
Sand 42
Silt 35
Clay 23
Total 100
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SOAL 7
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 92.1
60 0.25 85.8
0.15 77.3
200 0.075 62
0.04 50.80
0.02 41.00
0.01 34.30
0.006 29.00
0.002 23.00
DISTRIBUSI UKURAN BUTIRAN SISTEM USDA
100 0.00 0.05 2
90
80
70
Lolos
60
50 55
%
40
30
20
10 23
0
0.001 0.01 0.1 1Ukuran Butiran (mm) 10
Clay Lanau (Silt ) Pasir Kerikil(Gravel )
Persentase Butiran
Menurut Sistem USDA
Jenis Tanah %
Gravel 0
Sand 45
Silt 32
Clay 23
Total 100
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SOAL 8
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 92.10.425
60 85.80.25
77.30.15
200 620.075
50.800.04
41.000.02
34.300.01
29.000.006
23.000.002
DISTRIBUSI UKURAN BUTIRAN SISTEM AASTHO
100
0.00 0.07 2
90
80
70
L
o
l
o
s
60 62%
50
%
40
30
20
23%
10
0 Ukuran Butiran (mm)
0.001 0.01 0.1 1 10
Clay Lanau (Silt ) Pasir (Sand) Kerikil(Gravel )
Persentase Butiran
Menurut Sistem
AASTHO
Jenis Tanah %
Gravel 0
Sand 38
Silt 39
Clay 23
Total 100
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SOAL 9
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 100
60 0.25 94.1
0.15 79.3
200 0.075 34.1
0.04 28.00
0.02 25.20
0.01 21.80
0.006 18.90
0.002 14.00
%Lolos
DISTRIBUSI UKURAN BUTIRAN SISTEM
MIT
100 0.002 0.06 2
90
80
70
60
50
40
30 32%
20
10 14%
0 Ukuran Butiran (mm)
0.001 0.01 0.1 1 10
Clay Lanau (Silt ) Pasir (Sand) Kerikil(Gravel )
Persentase Butiran
Menurut Sistem MIT
Jenis Tanah %
Gravel 0
Sand 68
Silt 18
Clay 14
Total 100
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SOAL 10
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 100
60 0.25 94.1
0.15 79.3
200 0.075 34.1
0.04 28.00
0.02 25.20
0.01 21.80
0.006 18.90
0.002 14.00
DISTRIBUSI UKURAN BUTIRAN SISTEM USDA
%Lolos
0.002 0.05 2100
90
80
70
60
50
40
30
20 29
10 14%
0
0.001 0.01 0.1 1Ukuran Butiran (mm) 10
Clay Lanau (Silt ) Pasir Kerikil(Gravel )
Persentase Butiran Menurut Sistem USDA
Jenis Tanah %
Gravel 0
Sand 71
Silt 15
Clay 14
Total 100
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SOAL 11
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 100
60 0.25 94.1
0.15 79.3
200 0.075 34.1
0.04 28.00
0.02 25.20
0.01 21.80
0.006 18.90
0.002 14.00
%Lolos
DISTRIBUSI UKURAN BUTIRAN SISTEM AASTHO
100
0.002 0.07 2
90
80
70
60
50
40
30 34.1
20
10 14%
0 Ukuran Butiran (mm)
0.001 0.01 0.1 1 10
Clay Lanau (Silt ) Pasir (Sand) Kerikil(Gravel )
Persentase Butiran Menurut Sistem AASTHO
Jenis Tanah %
Gravel 0
Sand 65.9
Silt 20.1
Clay 14
Total 100
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SOAL 12
Diket: Uji hydrometer
GS = 2.70
T = 22° C L
= 11.9 cm
t. = 30 menit
Ditanya : Diameter ukuran butir terkecil
Jawab: Berdasarkan Tabel 1.7 (hal 20) didapat nilai K = 0.01199
D = K L = 0.01199 11.9= 0.001887 mm
t 30
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