Efek Penambahan Bahan Aditif Non-Alami terhadap Perilaku Lempung Plastisitas Tinggi yang Distabilisasi dengan Semen

Cement is proven increasing the strength of soft clays. Monmorillonite has a high shrinkage. Another hand, Kaolin small Waste material usage for stabilization agent was widely carried out this decade. BAFA (bottom ash fly ash) and POFA (palm oil fuel are rich in Silica Alumina, so they used to substitute cement. The study examined effect Monmorillonite, Kaolin, on clay with Bentonite from 4% 16% (is equated POFA, ratio 2:1) by 2.5%, reduce shrinkage, mixed cement 3% 5%. Soil behavior will be reviewed laboratory tests curing-noncuring soaked-unsoaked conditions. results show changes Atterberg Limits Hydraulic Conductivity (permeability, k). as well Plastic Limit greater than Liquid Limit. So, Plasticity Index decreased. It’s can seen that waste decreasing permeability value. More Ash less cement, make more impermeable soil. Addition 5% increased UCS values 14.32 kPa 81.20 589.68 CBR value 0.78% 4.20% 42.12% respectively