Asphalt Elasticity Modulus Comparison Using Modified Laboratory LWD Against UMMATA Method

Highway consultants need pavement structure strength to examine and design. With advances in computer, sensor, microelectronic technologies, the light weight deflectometer (LWD) can measure granular asphalt layers. This portable, easy-to-use tool is suggested. article was designed improve LWD Pusjatan's accuracy distinguish it from other testing methods. study compares Pusjatan UMMATA (Universal Material Testing Apparatus) methods for measuring modulus of elasticity on different materials. Boussinesq elastic theory used compute most LWDs. In a semi-elastic environment, connection between pressure displacement rigid or flexible basis. The deflection value derived process vibrations caused by load delivered given height onto test item, with wave/vibration collected an acceleration instrument, such as geophone accelerometer. provided AUDL (Laboratory Deflection Test Equipment) method less than that produced method. According results, average AC Base material 7.52% Base. BC just over 0.3%. These results indicate more necessary when using methodology detect correlations might serve basis comparison. Thus, may be nondestructive technique. kind non-destructive technique should frequently so simulations field circumstances are accurate. Doi: 10.28991/CEJ-2022-08-06-012 Full Text: PDF