LAPORAN SEMENTARA PRAKTIKUM MEKANIKA BATUANSIFAT FISIK CONTO BATUAN

LABORATORIUM TEKNOLOGI MINERAL DAN BATUBARA

Contoh Uji 1 2 3 4 5

Nomor Cawan 1 2 3

Berat Conto (Wn) gram 29.25 25.46 18.71

Berat conto batuan jenuh (Ww) gram 30.63 26.92 20.05

Berat batuan jenuh tegantung dala air (Ws) gram 16.36 14.67 10.13

Berat conto kering (Wo) gram 26.98 23.69 17.29

Kadar air % 8.41 7.47 8.21

Kadar air rata-rata % 8.03

Conto Uji 1 2 3 4 5

Nomor cawan 1 2 3

Naturan density = Wn/(Ww-Ws) 2.05 2.08 1.89

Dry density = Wo/(Ww-Ws) 1.89 1.93 1.74

Saturated density = Ww/(Ww-Ws) 2.15 2.19 2.02

Apperent specific grafity = Wo/(Ww-Ws)Per bobot isi air 1.89 1.93 1.74

True specific gravity = Wo/(Wo-Ws)Per bobot isi air 2.54 2.63 2.41

Nama : Wulan Ciptaning Pangestuti

Kelompok : 2

Prodi : S1 Teknik Pertambangan

Tanggal : 04 Maret 2015

Natural water content (ωn) = [(Wn-Wo)/Wo] x 100% 8.41 7.47 8.21

Saturated water content (ωs)= [(Ww-Wo)Wo] x 100% 13.53 13.63 15.96

Dagree of saturation (S)= [(Wn-Wo)/(Ww-Wo)] x 100% 62.19 54.79 51.45

Porosity (n) = [(Ww-Wo)/(Ww-Ws) x 100% 25.58 26.37 27.82

Void ratio (e) = (n / 100 ) / [1- (n / 100)] 0.34 0.36 0.38

................,..........,........... Asisten Praktikan

Farah Dita Mustika Wulan Ciptaning Pangestuti

NIM. 1209055007 NIM. 1309055061