ANALISIS TEBAL PERKERASAN LENTUR AKIBAT BEBAN BERLEBIH (OVERLOAD) KENDARAAN DENGAN METODE AUSTROADS MENGGUNAKAN PROGRAM CIRCLY 6.0
MetadataShow full item record
Road is an important basic need for people to carry out daily activities. The increase of vehicles volume each year causes damage on road surface. The main factor of road damage is the overloaded weight that exceeds vehicle’s heaviest axis. Therefore, a research to obtain pavement thickness design for overload weight carried by vehicles was conducted. Austroads method was used to analyse the pavement thickness and Circly 6.0 program was used to evaluate the result. The data that needed were: Average Daily Traffic, condition of environment, overload weight percentage, and commercial vehicle percentage. The data were used to calculated Equivalent Standard Axles (ESA), Cummulative Growth Factor (CGF), and Design Equivalent Standard Axles (DESA). Therefore, the type of material and the thickness of each pavement layer determinded using Graphic Design Chart. The result shows that to obtain CDF≤1 with 20 years of pavement service life, the pavement design that suggested is 17,5 cm surface layer (Asphalt, Modulus 3000 MPa), 10 cm base layer (Granular, Modulus 350 MPa), 25 cm Sub base layer ( Cemented Material, Modulus 5000 MPa) Subgrade layer (Modulus 50 MPa, CBR 5%). For overload weight the pavement required 22,5 cm surface layer (Asphalt, Modulus 3000 MPa), 10 cm base layer (Granular, Modulus 350 MPa), 20 cm Sub base layer ( Cemented Material, Modulus 5000 MPa) Subgrade layer (Modulus 50 MPa, CBR 5%).