Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
103
D. Hasil Pengujian - 103
Kode Beton = SF 15 4
Po =
208,06 mm
Ao =
18481,64401 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 0,4424
0,0000 500
4903,355 13
6,5 0,2653
3,1241 2,6817
1000 9806,71
22 11
0,5306 5,2869
4,8445 1500
14710,07 32
16 0,7959
7,6901 7,2477
2000 19613,42
38 19
1,0612 9,1320
8,6896 2500
24516,78 49
24,5 1,3265
11,7754 11,3330
3000 29420,13
59 29,5
1,5919 14,1786
13,7362 3500
34323,49 70
35 1,8572
16,8221 16,3797
4000 39226,84
82 41
2,1225 19,7059
19,2635 4500
44130,2 98
49 2,3878
23,5509 23,1085
5000 49033,55
106 53
2,6531 25,4734
25,0310 5500
53936,91 117
58,5 2,9184
28,1169 27,6745
6000 58840,26
129 64,5
3,1837 31,0007
30,5583 6500
63743,62 140
70 3,4490
33,6441 33,2017
7000 68646,97
148 74
3,7143 35,5667
35,1243 7500
73550,33 161
80,5 3,9796
38,6908 38,2484
8000 78453,68
174 87
4,2450 41,8149
41,3725 8500
83357,04 185
92,5 4,5103
44,4583 44,0159
9000 88260,39
197 98,5
4,7756 47,3421
46,8997 9500
93163,75 209
104,5 5,0409
50,2259 49,7835
10000 98067,1
223 111,5
5,3062 53,5903
53,1479 10500
102970,5 235
117,5 5,5715
56,4741 56,0317
11000 107873,8
248 124
5,8368 59,5982
59,1558 11500
112777,2 262
131 6,1021
62,9626 62,5202
12000 117680,5
276 138
6,3674 66,3270
65,8846 12500
122583,9 294
147 6,6327
70,6527 70,2103
13000 127487,2
309 154,5
6,8980 74,2574
73,8150 13500
132390,6 327
163,5 7,1634
78,5831 78,1407
Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
104
D. Hasil Pengujian - 104
Contoh Hitungan : f = 500 x 9,80671 = 4903,355 N
A = 0,25 x π x d
2
= 0,25 x π x 153,4
2
= 18481,64 mm
2
P = 208,06 mm
0,2653MPa 18481,64
4903,355 A
f σ
5 3
3,1241x10 208,06
6,5x10 P
Δ p ε
X
koreksi
= 0,4424. 10
-5
5 5
5 koreksi
koreksi
2,6817.10 0,4424.10
3,1241.10 x
ε ε
Beban maks = 18350 kgf
Fmax =
64 ,
18481 80671
, 9
18350x
= 9,737 MPa σ
p
= 2,9184 MPa ε
p
= 27,6745 . 10
-5
Modulus elastisitas =
p p
ε σ
10545,467 MPa Modulus elastisitas teori =
fc x0,043x
W
1,5 c
= 11906,9384 MPa
y = -0.0003x
2
+ 0.1153x - 0.051 R² = 0.9995
0.0 1.0
2.0 3.0
4.0 5.0
6.0 7.0
8.0
0.0 10.0
20.0 30.0
40.0 50.0
60.0 70.0
80.0 90.0
M Pa
.10
-5
Grafik Kuat Tekan SF 15 4
Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
105
D. Hasil Pengujian - 105 Kode Beton =