Kajian Efektifitas Penggunaan Abu Vulkanik dan Abu Ampas Tebu Terhadap Stabilitas Tanah Lempung dengan Pengujian Kuat Tekan Bebas (Uncofined Compression Test) dan Ditinjau dari Nilai CBR

LAMPIRAN

Universitas Sumatera Utara

SUMMARY TEST RESULT
- Pengujian Index Properties
Sample
Tanah asli
Abu Gunung
Vulkanik
Abu Sekam
Padi

Atterberg limit
PL
IP
20,42%
26,33%

Kadar
air

12,35%

Berat
spesifik
2,6517

LL
46,73%

-

2.6280

NP

NP

NP

13,40%

-

2.5558

NP

NP

NP

10,51%

Lolos saringan No. 200
49,16%

- Pengujian AtterbergLimit, Compaction, dan UCT
Atterberg limit
Sample
Tanah asli

Tanah remoulded
TA + 4% AGV + 2% AAT
TA + 4% AGV + 3% AAT
TA + 4% AGV + 4% AAT
TA + 4% AGV + 5% AAT
TA + 4% AGV + 6% AAT
TA + 4% AGV + 7% AAT
TA + 4% AGV + 8% AAT
TA + 4% AGV + 9% AAT
TA + 4% AGV + 10% AAT
TA + 4% AGV + 11% AAT
TA + 4% AGV + 12% AAT
TA + 4% AGV + 13% AAT
TA + 4% AGV + 14% AAT

LL

PL

PI

46,73
47,02
44,55
42,81
40,78
38,83
37,98
37,13
36,71
36,23
35,52
34,81
33,25
32,72

20,42
30,56
29,32
28,15

26,96
25,82
25,86
26,44
26,49
26,34
26,02
25,56
24,52
24,46

26,33
16,46
15,23
14,66
13,82
13,00
12,12
10,69
10,22

9,89
9,50
9,25
8,73
8,26

Compaction
γd maks
Wopt
(gr/cm³)
(%)
1,31
21,25
1,25
35,10
1,32
33,08
1.37
30,68
1,42

29,56
1,44
28,88
1,47
28,61
1,51
27,12
1,58
26,93
1,57
26,67
1,53
25,77
1,52
24,12
1,49
23,16
1,48
22,03

UCT
Qu
Cu
(kg/cm²) (kg/cm²)
1,38
0,69
0,63
0,32
3,41
1,72
3,54
1,77
3,67
1,84
3,94
1,97
4,20
2,10
4,32
2,16

4,51
2,26
4,77
2,38
5,10
2,55
4,94
2,48
4,68
2,34
4,49
2,25
4,26
2,13

- Pengujian CBR
Sample
Tanah Asli
TA + 4% AGV + 2% AAT
TA + 4% AGV + 3% AAT

TA + 4% AGV + 4% AAT
TA + 4% AGV + 5% AAT
TA + 4% AGV + 6% AAT
TA + 4% AGV + 7% AAT
TA + 4% AGV + 8% AAT
TA + 4% AGV + 9% AAT
TA + 4% AGV + 10% AAT
TA + 4% AGV + 11% AAT
TA + 4% AGV + 12% AAT
TA + 4% AGV + 13% AAT
TA + 4% AGV + 14% AAT

CBR (%)
12,87
13,22
13,43
13,91
12,78
12,05
11,51

10,95
10,12
9,76
9,13
8,79
7,59
6,44

Universitas Sumatera Utara