Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
101
D. Hasil Pengujian - 101
Kode Beton = SF 15 3
Po =
207,96 mm
Ao =
17718,61398 mm
2
Beban Compressometer
Compressometer Tegangan
Regangan Regangan
Koreksi kgf
N Δ P 10
-3
Δ P2 10
-3
MPa 10
-5
10
-5
0,0000 0,8360
0,0000 500
4903,355 13
6,5 0,2767
3,1256 2,2896
1000 9806,71
26 13
0,5535 6,2512
5,4152 1500
14710,07 34
17 0,8302
8,1746 7,3386
2000 19613,42
46 23
1,1069 11,0598
10,2238 2500
24516,78 59
29,5 1,3837
14,1854 13,3494
3000 29420,13
72 36
1,6604 17,3110
16,4750 3500
34323,49 85
42,5 1,9371
20,4366 19,6006
4000 39226,84
96 48
2,2139 23,0814
22,2454 4500
44130,2 110
55 2,4906
26,4474 25,6114
5000 49033,55
125 62,5
2,7673 30,0539
29,2179 5500
53936,91 137
68,5 3,0441
32,9390 32,1030
6000 58840,26
150 75
3,3208 36,0646
35,2286 6500
63743,62 166
83 3,5976
39,9115 39,0755
7000 68646,97
178 89
3,8743 42,7967
41,9607 7500
73550,33 194
97 4,1510
46,6436 45,8076
8000 78453,68
210 105
4,4278 50,4905
49,6545 8500
83357,04 225
112,5 4,7045
54,0969 53,2609
9000 88260,39
243 121,5
4,9812 58,4247
57,5887 9500
93163,75 266
133 5,2580
63,9546 63,1186
10000 98067,1
282 141
5,5347 67,8015
66,9655 10500
102970,5 305
152,5 5,8114
73,3314 72,4954
11000 107873,8
328 164
6,0882 78,8613
78,0253 11500
112777,2 366
183 6,3649
87,9977 87,1617
12000 117680,5
398 199
6,6416 95,6915
94,8555 12500
122583,9 422
211 6,9184
101,4618 100,6258
13000 127487,2
472 236
7,1951 113,4834
112,6474 13500
132390,6
Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
102
D. Hasil Pengujian - 102
Contoh Hitungan : f = 500 x 9,80671 = 4903,355 N
A = 0,25 x π x d
2
= 0,25 x π x 150,2
2
= 17718,614 mm
2
P = 207,96 mm
0,2767MPa 17718,614
4903,355 A
f σ
5 3
3,1256x10 207,96
6,5x10 P
Δ p ε
X
koreksi
= 0,8360. 10
-5
5 5
5 koreksi
koreksi
2,2896.10 0,8360.10
3,1256.10 x
ε ε
Beban maks = 13550 kgf
Fmax =
614 ,
17718 80671
, 9
13550x
= 7,5 MPa σ
p
= 2,2139 MPa ε
p
= 22,245 . 10
-5
Modulus elastisitas =
p p
ε σ
9952,0856 MPa Modulus elastisitas teori =
fc x0,043x
W
1,5 c
= 10363,9 MPa
y = -0.0004x
2
+ 0.1093x - 0.0911 R² = 0.9997
0.0 1.0
2.0 3.0
4.0 5.0
6.0 7.0
8.0
0.0 20.0
40.0 60.0
80.0 100.0
120.0
M Pa
.10
-5
Grafik Kuat Tekan SF 15 3
Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
103
D. Hasil Pengujian - 103