STRUCTURAL EVALUATION OF FLEXIBLE PAVEMENT USING AASHTO 1993 METHODS AND ELMOD 6 PROGRAM (CASE STUDY: PADALARANG – CISOMANG HIGHWAY)

• Main Author: ANGGRAINI, FENNY
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/27287
• Institution: Institut Teknologi Bandung

<p align="justify">The evaluation of structural and functional condition of pavement was needed in order to <br /> <br /> determine the most reliable pavement maintenance program. The purpose of this study was to evaluate the structural performance of flexible pavement on padalarang-Cisomang highway using AASHTO 1993 Method and ELMOD 6 Program. <br /> <br /> <br /> <br /> In the AASHTO-93 method, the deflection “d1 and d6” from FWD (Falling Weight Deflectometer) measurement were used to calculate the value of Mr (Subgrade Resilient Modulus) and Ep (Effective Modulus of Pavement) and also SNeff (Effective Structural Number) and SNf (Structural Number in the Future). The difference value of SNf and <br /> <br /> SNeff will determine whether the existing pavement required an overlay or not. The overlay thickness resulted using the AASHTO-93 method was between 13 cm to 15 cm. <br /> <br /> <br /> <br /> The ELMOD’s computer program calculate the overlay thickness which depend on the layer modulli, pavement layer thickness, and the type of material used in each layer. The result of ELMOD 6 computer program gives the overlay thickness between 8 cm to 13 cm. This is consistent with the realization in field, that is 4 cm of AC-WC and 6 cm of AC-BC. <br /> <br /> <br /> <br /> The comparison between the analysis using the AASHTO-1993 and the ELMOD-6 gives different results of overlay thickness, that 2 cm to 5 cm. It is concluded then the different value of overlay thickness calculated by those two methods was relatively small.<p align="justify">