Selasa, 22 Oktober 2013
data percobaan praktek teknologi beton kelompok 2
bab 2 (bj semen)
V1 = 0 ml
V2 = 20,3 ml
bab 5 (LUMPUR)
hasil Pengujian
1)
Data
Nomor
gelas ukur
|
H
Pasir (V1) ml
|
H
Lumpur (V2) ml
|
H seluruh
(V1 + V2) ml
|
1
|
50
|
230
|
280
|
2)
Perhitungan
Sample
Kadar Lumpur = x
100% = 17,85 %
bab 6 ( zat organik)
warna air pada endapan pasir + NaOH bewarna jernih. Jadi memenuhi standar warna nomor 1.
bab 7 (saringan agregat kasar)
A. Hasil
Percobaan
1)
Data
LABORATORIUM BAHAN BANGUNAN
|
||||||
JURUSAN TEKNIK SIPIL
|
||||||
UNIVERSITAS NEGERI JAKARTA
|
||||||
ANALISIS SARINGAN AGREGAT KASAR
(KERIKIL)
|
||||||
Analisis Saringan agregat kasar bagi butiran antara diameter
25.0 mm - 2.38 mm
|
||||||
Berat Contoh = 2 kg
|
||||||
Nomor Saringan
|
Ukuran Lubang Saringan
|
Berat Tertahan
|
Presentase Tertahan
|
Presentase Tertahan Kumulatif
|
Presentase Lolos Kumulatif
|
|
mm
|
inch
|
gram
|
(%)
|
(%)
|
(%)
|
|
37,50
|
1 1/2
|
120.4
|
6.02
|
6.02
|
93.98
|
|
25,00
|
1
|
110.2
|
5.51
|
11.53
|
88.47
|
|
19,10
|
3/4
|
808
|
40.4
|
51.93
|
48.07
|
|
12,50
|
1/2
|
731.5
|
36.575
|
88.505
|
11.495
|
|
9,5
|
3/8
|
218.6
|
10.93
|
99.435
|
0.565
|
|
No. 4
|
4,76
|
-
|
4.7
|
0.235
|
99.67
|
0.33
|
No. 8
|
2,36
|
-
|
1
|
0.05
|
99.72
|
0.28
|
No. 16
|
1,18
|
-
|
2
|
0.1
|
99.82
|
0.18
|
No. 30
|
0,60
|
-
|
1.2
|
0.06
|
99.88
|
0.12
|
No. 50
|
0,30
|
-
|
1
|
0.05
|
99.93
|
0.07
|
No. 100
|
0,15
|
-
|
1.4
|
0.07
|
100
|
0
|
Jumlah
|
2000
|
100
|
||||
2)
Perhitungan
|
||||||||||||||||||||||||||||
bab 8 (saringan agregat halus)
1)
Data
LABORATORIUM BAHAN BANGUNAN
|
||||||||
JURUSAN TEKNIK SIPIL
|
||||||||
UNIVERSITAS NEGERI JAKARTA
|
||||||||
ANALISIS SARINGAN AGREGAT HALUS
(PASIR)
|
||||||||
Analisis Saringan agregat halus (PASIR)
|
||||||||
Berat Contoh = 2 kg
|
||||||||
Nomor Saringan
|
Ukuran Lubang Saringan
|
Berat Tertahan
|
Presentase Tertahan
|
Presentase Tertahan Kumulatif
|
Presentase Lolos Kumulatif
|
|||
|
inch
|
gram
|
%
|
%
|
%
|
|||
9,5
|
9.7
|
0.97
|
0.97
|
99.03
|
||||
No. 4
|
4,76
|
-
|
68.8
|
6.88
|
7.85
|
92.15
|
||
No. 8
|
2,36
|
-
|
98.4
|
9.84
|
17.69
|
82.31
|
||
No. 16
|
1,18
|
-
|
145.8
|
14.58
|
32.27
|
67.73
|
||
No. 30
|
0,60
|
-
|
527.2
|
52.72
|
84.99
|
15.01
|
||
No. 50
|
0,30
|
-
|
102.6
|
10.26
|
95.25
|
4.75
|
||
No. 100
|
0,15
|
-
|
43.3
|
4.33
|
99.58
|
0.42
|
||
No. 200
|
0,075
|
-
|
4.2
|
0.42
|
100
|
0
|
||
Jumlah
|
1000
|
100
|
||||||
2)
Perhitungan
Modulus
kehalusan = Persentase Tertahan Kumuluatif
100
= (0,97+7,85+17,69+32,27+84,99+95,25+99,58+100)/100
= 438,6/100
= 4,386
bab 9 (bj ag. kasar)
1)
Data
LABORATORIUM BAHAN BANGUNAN
JURUSAN TEKNIK SIPIL
UNIVERSITAS NEGERI JAKARTA
|
|
PENENTUAN SPECIFIC GRAVITY
AGREGAT KASAR
|
|
Berat
Keranjang + agregat ssd (D)
Berat
Keranjang kosong (A)
Berat
agregat kondisi ssd (G)
|
=
2447,4 gram
=
601,4 gram -
|
Berat
(keranjang+agregat) dalam air (F)
Berat
keranjang dalam air (E)
Berat
agregat dalam air (H)
|
=
1639,7 gram
=
522,4 gram -
|
Berat
agregat kering oven (C)
|
=
1778,7 gram
|
Apparent
Specific Gravity
|
= C/C-H = 1778,7/1778-1117,3 = 2.69
|
Bulk
Specific Gravity kondisi kering
|
=
C/G-H = 1778,7/1846-1117,3 = 2,44
|
Bulk
Specific Gravity kondisi ssd
|
= G/G-H = 1846/1846-117,3 = 2,53
|
Persentase
absorpsi air
|
= G-C/C
= 1846-1778,7/1778,7 x 100% =3,78 %
|
2)
Perhitungan
-
Perhitungan
berat agregat kondisi ssd = G
-
Perhitungan
berat agregat dalam air = H
-
Perhitungan
berat agregat kering oven = C
-
Apparent
specific gravity = C/C-H
-
Bulk
specific gravity kondisi kering = C/G-H
-
Bulk
specific gravity kondisi SSD = G/G-H
-
Persentase
Penyerapan (absorpsi) = (G-C/C) x 100%
bab 10 (bj agreggat halus)
1)
Data
LABORATORIUM
BAHAN BANGUNAN
JURUSAN
TEKNIK SIPIL
UNIVERSITAS
NEGERI JAKARTA
|
|
PENENTUAN SPECIFIC GRAVITY
AGREGAT HALUS
|
|
A.
Berat
Piknometer
|
=
170,4 gram
|
B.
Berat
benda uji dalam kondisi SSD
|
=
500 gram
|
C.
Berat
piknometer + air + benda uji SSD
|
=
952,2 gram
|
D.
Berat
Piknometer + air
|
=
671,3 gram
|
E.
Berat
benda uji kering
|
=
472,9 gram
|
Apparent
Specific Gravity
|
= E/E+D-C= 472,9/472+671,3-952,2= 2,46
|
Bulk
Specific Gravity Kondisi Kering
|
= E/B+D-C =472,9/500+671,3-952,2 = 2,16
|
Bulk
Specific Gravity Kondisi SSD
|
= B/B+D-C=500/500+671-952,2 = 2,28
|
Persentase
Absorpsi
|
= (B – E) /E x 100%
=(500 - 472,9)/472,9x 100% = 5,73%
|
2)
Perhitungan
-
Apparent
specific gravity = E/(E+D-C)
-
Bulk
specific gravity = E/(B+D-C)
-
SSD
specific gravity = B / (B+D-C)
-
Persentase
Absorpsi = (B-E)/E x 100%
Keterangan
:
B
= berat benda uji kondisi SSD
C
= berat piknometer + benda uji + air
D
= berat piknometer + air
E
= berat benda uji kering
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