Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
122
D. Hasil Pengujian - 122
Contoh Hitungan : f = 25 x 9,80671 = 490,3355 N
A = 0,25 x π x d
2
= 0,25 x π x 151
2
= 17907,86 mm
2
P = 201,5 mm
0,014MPa 17907,86
490,3355 A
f σ
5 3
2,481.10 201,55
5x10 P
Δ p ε
X
koreksi
= 1,992. 10
-5
5 5
5 koreksi
koreksi
0,490.10 1,992.10
2,481.10 x
ε ε
Beban maks = 324,5 kgf
Fmax =
86 ,
17907 80671
, 9
5 ,
324 x
= 0,1777 MPa σ
p
= 0,053 MPa ε
p
= 2,475 . 10
-5
Modulus elastisitas =
p p
ε σ
2144,17 MPa Modulus elastisitas teori =
fc x0,043x
W
1,5 c
= 1119,265 MPa
y = -0.0008x
2
+ 0.0278x - 0.0522 R² = 0.9885
0.0 0.0
0.0 0.1
0.1 0.1
0.1 0.1
0.2 0.2
0.0 4.0
8.0 12.0
16.0
M Pa
.10
-5
Grafik Kuat Tekan SF 45 5
Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
123
D. Hasil Pengujian - 123 Kode Beton =
SF 45 6
Po =
201,3 mm
Ao =
18747,6505 mm
2
Beban Compressometer
Compressometer Tegangan Regangan
Regangan Koreksi
kgf N
Δ P 10
-3
Δ P2 10
-3
MPa 10
-5
10
-5
0,000 0,000
-0,597 0,000
25 245,168
6 3
0,013 1,487
1,518 50
490,336 8
4 0,027
1,983 2,014
75 735,503
12 6
0,040 2,975
3,006 100
980,671 18
9 0,053
4,462 4,493
125 1225,839
22 11
0,066 5,454
5,485 150
1471,007 25
12,5 0,080
6,197 6,228
175 1716,174
28 14
0,093 6,941
6,972 200
1961,342 34
17 0,106
8,428 8,459
225 2206,510
40 20
0,119 9,916
9,947 250
2451,678 46
23 0,133
11,403 11,434
275 2696,845
51 25,5
0,146 12,643
12,674 300
2942,013 67
33,5 0,159
16,609 16,640
325 3187,181
72 36
0,172 17,848
17,879 350
3432,349 80
40 0,186
19,831 19,862
375 3677,516
90 45
0,199 22,310
22,341 400
3922,684 101
50,5 0,212
25,037 25,068
425 4167,852
114 57
0,226 28,260
28,291 450
4413,020 127
63,5 0,239
31,482 31,513
475 4658,187
141 70,5
0,252 34,953
34,984 500
4903,355 153
76,5 0,265
37,928 37,959
Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
124
D. Hasil Pengujian - 124
Contoh Hitungan : f = 25 x 9,80671 = 490,3355 N
A = 0,25 x π x d
2
= 0,25 x π x 154,5
2
= 18747,65 mm
2
P = 201,3 mm
0,013MPa 18747,65
490,3355 A
f σ
5 3
1,487.10 201,3
3x10 P
Δ p ε
X
koreksi
= -0,597. 10
-5
5 5
5 koreksi
koreksi
1,518.10 0,597.10
1,487.10 x
ε ε
Beban maks = 525 kgf
Fmax =
65 ,
18747 80671
, 9
525x
= 0,2746 MPa σ
p
= 0,08 MPa ε
p
= 6,228 . 10
-5
Modulus elastisitas =
p p
ε σ
1277,918 MPa Modulus elastisitas teori =
fc x0,043x
W
1,5 c
= 1255,818 MPa
y = -0.0001x
2
+ 0.012x + 0.0072 R² = 0.993
0.0 0.1
0.1 0.2
0.2 0.3
0.3
0.0 10.0
20.0 30.0
40.0
M Pa
.10
-5
Grafik Kuat Tekan SF 45 6
Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
125
D. Hasil Pengujian - 125 D.5.
