Surveying and Geoinformatics

Article history: Received��4�September�2013 � Receivedinrevisedform�21�October� 2013 � Accepted�29October�2013� Availableonline�18�November�2013� The study evaluates the interface bond of overlay - stress absorbing membrane interlayer interface (SAMI) interface. This was carried out using the pull-off test which measures the interface strength in tension mode. The pull-off test was considered for the interface evaluation in this study because the surfacing layer of a road pavement is not only effective in shear but also in tension mode under trafficking, as the moving traffic exerts normal pressure on the interface. The test was also carried out on samples without stress absorbing membrane interlayers. It was found that the introduction of SAMI leads to reduction of the interface tensile strength, except in the case of SAMIs A and B. The reduction in the tensile strength was probably due to the properties of the SAMI. Also, the study shows that the interface tensile strength decreas...