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DAFTAR ISI HALAMAN JUDUL

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					                                           DAFTAR ISI


HALAMAN JUDUL .......................................................................................... i
HALAMAN PENGESAHAN ............................................................................ ii
KATA PENGANTAR ........................................................................................ iii
HALAMAN MOTTO ......................................................................................... v
HALAMAN PERSEMBAHAN ........................................................................ vi
DAFTAR ISI ....................................................................................................... vii
DAFTAR NOTASI ............................................................................................. xi
DAFTAR TABEL ............................................................................................... xii
DAFTAR GAMBAR .......................................................................................... xiii
DAFTAR LAMPIRAN ....................................................................................... xiv
ABSTRAKSI ..................................................................................................... xv
BAB I           PENDAHULUAN ........................................................................... 1
                1.1 Latar Belakang ............................................................................ 1
                1.2 Rumusan Masalah ....................................................................... 3
                1.3 Tujuan Penelitian ........................................................................ 3
                1.4 Manfaat Penelitian ...................................................................... 3
                1.5 Batasan Masalah ......................................................................... 4
                1.6 Sistematika Penulisan ................................................................. 5
BAB II          TINJAUAN PUSTAKA .................................................................. 6
                2.1 Umum ......................................................................................... 6
                2.2 Penelitian Terdahulu ................................................................... 7
                2.3 Keaslian Penelitian...................................................................... 9
BAB III         LANDASAN TEORI ...................................................................... 10
                3.1 Umum ......................................................................................... 10
                3.2 Material Penyusun Beton ............................................................ 10
                3.2.1. Semen Portland ....................................................................... 11
                3.2.2. Agregat .................................................................................... 14
                3.2.2.1 Agregat Halus. ...................................................................... 15
                3.2.2.2 Agregat Kasar ....................................................................... 16
         3.2.2.3 Air ......................................................................................... 18
         3.2.2.4 Udara ..................................................................................... 19
         3.3 Kerak Baja (Steel Lag) ................................................................ 19
         3.4 Bahan Tambah (Fly Ash) ............................................................ 20
         3.4.1. Proses Pembentukan Fly Ash (Abu Terbang) ......................... 22
         3.4.2. Sifat-sifat Fly Ash .................................................................. 23
         3.4.2.1. Sifat Fisik ............................................................................. 23
         3.4.2.2. Sifat Kimia ........................................................................... 23
         3.4.3. Pemnafaatan Fly Ash (Abu Terbang) ..................................... 24
         3.5. Faktor Air Semen ....................................................................... 26
         3.6. Slump.......................................................................................... 27
         3.7. Kemudahan Pekerjaan (Workability) ......................................... 28
         3.8. Segregasi .................................................................................... 28
         3.9 Bleeding ...................................................................................... 29
         3.10 Kuat Tekan Beton ..................................................................... 29
         3.11 Kuat Tarik Beton....................................................................... 31
         3.12 Berat Volume Beton ................................................................. 32
BAB IV   METODE PENELITIAN ............................................................... 34
         4.1. Rancangan Penelitian ................................................................. 34
         4.2. Prosedur Penelitian .................................................................... 34
         4.3. Obyek Penelitian ........................................................................ 35
         4.4. Subyek Penelitian....................................................................... 35
         4.5. Bahan yang Digunakan .............................................................. 35
         4.6. Peralatan Penelitian yang Digunakan ........................................ 36
         4.6.1. Timbangan .............................................................................. 36
         4.6.2. Talam ...................................................................................... 36
         4.6.3. Cetok ....................................................................................... 37
         4.6.4. Ayakan .................................................................................... 37
         4.6.5. Mesin Penyaring ..................................................................... 37
         4.6.6. Gelas Ukur 500ml ................................................................... 37
         4.6.7. Kaliper atau Jangka Sorong .................................................... 37
        4.6.8. Kolam Perendam ..................................................................... 37
        4.6.9. Cat dan Kuas ........................................................................... 37
        4.6.10. Lap dan Kuas ........................................................................ 37
        4.6.11. Cetakan Silinder Benda Uji................................................... 38
        4.6.12. Mesin Tekan Uji Kuat Tekan beton ...................................... 38
        4.6.13. Oven ...................................................................................... 38
        4.6.14. Mesin Pengaduk Beton ......................................................... 38
        4.6.15. Kerucut Abrams .................................................................... 38
        4.7. Pemeriksaan Bahan Campuran Beton ........................................ 38
        4.7.1. Pemeriksaan Kadar Lumpur .................................................. 38
        4.7.2. Pemeriksaan Modulus Halus Butir ......................................... 39
        4.7.3. Pemeriksaan Berat Jenis dan Penyerapan Agregat ................. 40
        4.7.3.1. Agregat Kasar ..................................................................... 40
        4.7.3.2. Agregat Halus ..................................................................... 41
        4.7.4. Pemeriksaan Berat Volume Agregat ....................................... 43
        4.8. Perencanaan Campuran Beton .................................................. 44
        4.9. Pengujian Slump......................................................................... 52
        4.10. Pembuatan Benda Uji ............................................................. 53
        4.11. Perawatan Benda Uji................................................................ 54
        4.12. Jumlah Benda Uji ..................................................................... 54
        4.13. Pengujian Kuat Tekan Benda Uji ........................................... 55
        4.14. Bagan Alir Penelitian ............................................................... 55
        4.15. Pengujian Tegangan Regangan Beton ..................................... 56
        4.16 Bagan Alir Penelitian ................................................................ 57
BAB V   ANALISIS DAN PEMBAHASAN................................................. 58
        5.1. Umum ........................................................................................ 58
        5.2. Uji Material ................................................................................ 58
        5.3. Gradasi Agregat Halus dan Modulus Halus Butir Agregat
              Halus ......................................................................................... 59
        5.4. Rekapitulasi Pengujian Benda Uji ............................................. 61
        5.5. Berat Volume Beton ................................................................. 62
         5.6. Nilai Slump dan Workability ...................................................... 64
         5.7. Analisis Kuat Tekan Beton ....................................................... 66
         5.8. Kuat Tarik Beton ....................................................................... 70
         5.9. Tegangan – Regangan Tekan Beton .......................................... 73
         5.10 Modulus Elastisitas ................................................................... 74
BAB VI   KESIMPULAN DAN SARAN ....................................................... 75
         6.1 Kesimpulan ............................................................................. 76
         6.2 Saran ..................................................................................... 77
DAFTAR PUSTAKA
LAMPIRAN
                            DAFTAR NOTASI


A         : jumlah air yang dibutuhkan
Ah        : jumlah air yang dibutuhkan menurut agregat halusnya
Ak        : jumlah air yang dibutuhkan menurut agregat kasarnya
Bj        : Berat Jenis
A         : Luas permukaan benda uji (mm2)
Bs        : Berat beton (Kg)
BV        : Berat volume beton (Kg/cm)
Bjcamp.   : Berat jenis campuran
Bp        : Berat pasir
Bk        : Berat kerikil
d         : Diameter silinder (cm)
fas       : Faktor air semen, rasio antara berat air dan semen
f’c       : Kuat tekan beton
f’cr      : Kuat tekan rata-rata pada perencanaan campuran beton
L         :Tinggi/panjang silnder
MHB       : Modulus halus butir
MPa       : Mega Pascal
m         : Nilai margin
N         : Beton normal
P         : Beban tekan maksimum
PBI       : Peraturan Beton Bertulang Indonesia
PC        : Portland cement
SNI       : Standar Nasional Indonesia
SSD       : Berat jenis permukaan jenuh
SF        : sika fume
Vb        : Volume beton (cm3)
W         : Rasio total berat air
Sd        : Standar deviasi
Ws        : Berat semen yang diperlukan
                                          DAFTAR TABEL


Tabel 3.1. Susunan unsur dalam semen ............................................................. 13
Tabel 3.2 Nilai Slump…… ............................................................................... 27
Tabel 4.1. Tingkat Pengendalian pekerjaan ....................................................... 45
Tabel 4.2. Persyaratan jumlah semen minimum dan FAS maksimum untuk
               berbagai macam pembetonan dalam lingkungan khusus................... 46
Tabel 4.3. Penetapan Nilai Slump (cm) ............................................................. 47
Tabel 4.4 Kebutuhan air per meter kubik beton (liter)........................................ 47
Tabel 4.5 Persyaratan jumlah semen minimum dan FAS maksimum untuk
             berbagai macam pembetonan dalam lingkungan khusus.................... 48
Tabel 4.6. Kebutuhan Material Beton Normal ................................................... 51
Tabel 4.7. Kebutuhan Material Beton Variasi.................................................... 52
Tabel 4.8. Jumlah Benda Uji .............................................................................. 54
Tabel 5.1 Hasil Pengujian Agregat .................................................................... 59
Tabel 5.2. Data Gradasi Agregat Halus Dan Modulus Halus Butir Agregat
               Halus………………………………………………………………...60
Tabel 5.3 Variasi Benda Uji…………………………………………………….62
Tabel 5.4 Berat Volume Beton…………………………………………………63
Tabel 5.5. Nilai Slump….………………………………………………………65
Tabel 5.6 Kuat Tekan Beton Rata-Rata………………………………………...67
Tabel 5.7. Kuat Tarik Beton Rata-Rata fct = 2P/πDL…………………………………70
Tabel 5.8 Modulus Elastisitas Beton...................................................................75
                                         DAFTAR GAMBAR




Gambar 3.1 Pengujian Kuat Desak Beton Silinder .......................................... 30
Gambar 3.2 Sket Pengujian Tarik Beton .......................................................... 31
Gambar 4.1 Grafik faktor air semen ................................................................. 46
Gambar 4.2. Grafik persentase agregat halus terhadap agregat keseluruhan
                 untuk ukuran butir maksimal 20 mm............................................ 49
Gambar 4.3. Grafik hubungan kandungan air, berat jenis agregat campuran,
                 dan berat beton…………………………………………………...50
Gambar 4.4. Pengukuran nilai slump……………………………………… ... 52
Gambar 4.5. Flow chart penelitian………………………………………….....57
Gambar 5.1. Kurva Gradasi Pasir Alami............................................................61
Gambar 5.2. Hubungan Berat Volume Beton Peneliti dengan Berbagai Variasi
                 Benda Uji.......................................................................................63
Gambar 5.3. Nilai Slump Pada Tiap Variasi.......................................................66
Gambar 5.4. Hubungan Kuat Tekan Beton dengan Berbagai Variasi Benda
                 Uji………………………………………………………………..68
Gambar 5.5. Hubungan Kuat Tekan Beton dengan Berbagai Variasi Benda
                 Uji………………………………………………………………..68
Gambar 5.6. Hubungan Kuat Tekan Beton dengan Berbagai Variasi Benda
                 Uji………………………………………………………………..69
Gambar 5.7. Hubungan Kuat Tarik Beton dengan Berbagai Variasi Benda
                 Uji..................................................................................................71
Gambar 5.8. Hubungan Kuat Tarik Beton dengan Berbagai Variasi Benda
                 Uji..................................................................................................71
Gambar 5.9. Hubungan Kuat Tarik Beton dengan Berbagai Variasi Benda
                 Uji..................................................................................................72
Gambar 5.10 Grafik Tegangan Regangan……………………………………..73
                           DAFTAR LAMPIRAN




Lampiran I    Kartu Peserta Tugas Akhir

Lampiran II   Tata Cara Pemeriksaan Material

Lampiran III Hasil Pemeriksaan Bahan Susun Beton

Lampiran IV   Mix Design

Lampiran V    Laporan Hasil Uji Kuat Tekan dan Tarik Beton

Lampiran VI   Dokumentasi Selama Pengujian

          

 

				
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