Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
119
D. Hasil Pengujian - 119 Kode Beton =
SF 45 4
Po =
201,7 mm
Ao =
18481,644 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
-0,031 0,000
25 245,168
3 1,5
0,013 0,744
0,775 50
490,336 5
2,5 0,027
1,239 1,270
75 735,503
8 4
0,040 1,983
2,014 100
980,671 12
6 0,053
2,975 3,006
125 1225,839
14 7
0,066 3,471
3,502 150
1471,007 18
9 0,080
4,462 4,493
175 1716,174
21 10,5
0,093 5,206
5,237 200
1961,342 25
12,5 0,106
6,197 6,228
225 2206,510
27 13,5
0,119 6,693
6,724 250
2451,678 31
15,5 0,133
7,685 7,716
275 2696,845
36 18
0,146 8,924
8,955 300
2942,013 40
20 0,159
9,916 9,947
325 3187,181
43 21,5
0,172 10,659
10,690 350
3432,349 47
23,5 0,186
11,651 11,682
375 3677,516
51 25,5
0,199 12,643
12,674 400
3922,684 55
27,5 0,212
13,634 13,665
425 4167,852
60 30
0,226 14,874
14,905 450
4413,020 66
33 0,239
16,361 16,392
475 4658,187
71 35,5
0,252 17,600
17,631 500
4903,355 78
39 0,265
19,336 19,367
525 5148,523
87 43,5
0,279 21,567
21,598 550
5393,691 94
47 0,292
23,302 23,333
575 5638,858
104 52
0,305 25,781
25,812 600
5884,026 104
52 0,318
25,781 25,812
625 6129,194
281 140,5
0,332 69,658
69,689
Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
120
D. Hasil Pengujian - 120
Contoh Hitungan : f = 25 x 9,80671 = 490,3355 N
A = 0,25 x π x d
2
= 0,25 x π x 153,4
2
= 18481,644 mm
2
P = 201,7 mm
0,013MPa 18481,644
490,3355 A
f σ
5 3
0,744x10 201,77
1,5x10 P
Δ p ε
X
koreksi
= -0,031. 10
-5
5 5
5 koreksi
koreksi
0,775.10 0,031.10
0,744.10 x
ε ε
Beban maks = 631,5 kgf
Fmax =
644 ,
18481 80671
, 9
5 ,
631 x
= 0,3351 MPa σ
p
= 0,093 MPa ε
p
= 5,237 . 10
-5
Modulus elastisitas =
p p
ε σ
1773,205 MPa Modulus elastisitas teori =
fc x0,043x
W
1,5 c
= 1325,651 MPa
y = -0.0003x
2
+ 0.0193x + 0.0006 R² = 0.9994
0.0 0.1
0.1 0.2
0.2 0.3
0.3 0.4
0.0 10.0
20.0 30.0
M Pa
.10
-5
Grafik Kuat Tekan SF 45 4
Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
121
D. Hasil Pengujian - 121 Kode Beton =
SF 45 5
Po =
201,5 mm
Ao =
17907,8635 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
1,992 0,000
25 245,168
10 5
0,014 2,481
0,490 50
490,336 12
6 0,027
2,978 0,986
75 735,503
15 7,5
0,040 3,722
1,730 100
980,671 18
9 0,053
4,467 2,475
125 1225,839
20 10
0,066 4,963
2,971 150
1471,007 25
12,5 0,080
6,203 4,212
175 1716,174
27 13,5
0,093 6,700
4,708 200
1961,342 29
14,5 0,106
7,196 5,204
225 2206,510
32 16
0,119 7,940
5,949 250
2451,678 34
17 0,133
8,437 6,445
275 2696,845
38 19
0,146 9,429
7,437 300
2942,013 48
24 0,159
11,911 9,919
Jl. Babarsari No.44 Yogyakarta 55281 Indonesia KotakPos 1086 Telp.+62-274-487711 hunting Fax. +62-274-487748
122
D. Hasil Pengujian - 122