Portland cement concrete (PCC) / asphalt concrete (AC) bonded components are seen in both conventional pavement structures as well as overlays. Due to the environmental and traffic loads, cracks occur at the interface of the PCC and AC layers and finally, may propagate through the interface or one of the layers. | Evaluation of interfacial bond strength between Portland cement concrete and asphalt concrete layers using bi-material SCB test specimen Engineering Solid Mechanics 2017 293-306 Contents lists available at GrowingScience Engineering Solid Mechanics homepage esm Evaluation of interfacial bond strength between Portland cement concrete and asphalt concrete layers using bi-material SCB test specimen M. M. Mirsayara X. Shia and D. G. Zollingera a Texas A amp M University Zachry Department of Civil Engineering College Station TX 77843-313 USA A R T I C L EI N F O ABSTRACT Article history Portland cement concrete PCC asphalt concrete AC bonded components are seen in both Received 6 April 2017 conventional pavement structures as well as overlays. Due to the environmental and traffic Accepted 3 August 2017 loads cracks occur at the interface of the PCC and AC layers and finally may propagate Available online through the interface or one of the layers. Therefore the evaluation of bond strength between 3 August 2017 Keywords these layers is important. This paper investigates bond strength between asphalt concrete and Bi-material SCB specimen Portland cement concrete using a new sandwich test specimen. The developed specimen called Interfacial bond strength Bi-material semi-circular bend BSCB is made of asphalt concrete and the Portland cement Cement asphalt interface concrete cracked at the interface of the materials. First the suggested specimen is introduced Experimental study and characterized using finite element simulation. Then the specimen is employed to obtain Fracture theory bond strength between asphalt concrete and Portland cement concrete under mixed mode loading and at two temperatures -20C and 20C. The fracture toughness at different mixed mode conditions is obtained and finally fracture criterion for the tested bonded joints is presented. 2017 Growing Science Ltd. All rights reserved. 1. Introduction Bonded layers can be seen as a part
