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Journal > Jurnal Transportasi > DEVELOPMENT OF AUTOMATIC TORQUE BOND TEST

 

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Jurnal Transportasi
Vol 11, No 3 (2011)
DEVELOPMENT OF AUTOMATIC TORQUE BOND TEST
Article Info   ABSTRACT
Published date:
24 Apr 2013
 
AbstractProper bonding between adjacent pavement layers is very important to ensure good pavement performance.Manual torque bond test is known to be one of the tests to determine mechanical properties of bond betweenadjacent pavement layers. However, the test has several drawbacks that may affect the accuracy of results.This paper is focused on the development a mechanically controlled automatic torque bond test in order toeradicate the drawbacks associated with the manual torque bond test. A trial test and calibration of the newlydeveloped apparatus was performed to ensure the accuracy of results. The nominal loading rate of the manualtorque bond test performed at 600Nm/min was found to be lower than the target loading rate, leading to alower measured shear strength compared to that of the automatic torque test. It was also found that theappearance of lateral shear would not significantly affect the shear strength.Keywords: bond test, torque, shear, loading rate.
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