Strength Enhancement of Fibre Reinforced Peat with Fly Ash as Stabilized Subgrade Layer

High content of organic matter and fibre within peat results in a high degree porosity; causing to have low bearing capacity. This study focuses on the application nylon as reinforcing material with fly ash chemical stabilizer enhance strength peat. The standard proctor tests were conducted obtain optimum moisture (OMC) for all samples which these OMC is then used sample preparation both Unconfined Compressive Strength (UCS) California Bearing Ratio (CBR) tests. Samples this categorized into control modified comparison purposes. Additives that being are 5% cement, 10%, 15%, 20% ash. For UCS test, cured 7, 14, 28 56 days, whereas only 7 days curing CBR test. Throughout study, improvements observed where added 10% recorded highest compressive value, 123.71 kN/m2. As exceeded minimum requirement 12% value subgrade design recommended by JKR Malaysia obtained from cement values 43.85% 43.70% unsoaked soaked condition, respectively.