A tack coat is applied in order to ensure the correct bond between asphalt layers of the pavement Nevertheless, in most of the times the adhesion obtained is not controlled. In the Road Laboratory of the Technical University of Catalonia (UPC), a simple, new procedure named the LCB Shear Test (Laboratorio de Caminos de Barcelona) has been developed. This test assesses the bond between the pavement layers by measuring the shear strength generated by the application of a shear force on the interface between layers. The test procedure, particularly the specimen support system and the process of manufacturing the specimens, has evolved through several phases during development. Tests have been performed at different temperatures, both in dry and wet conditions, in order to verify the resistance of tack coats to the damage caused by water. The same test procedure has been successfully applied as a quality control method in the field using cores cut from the pavement.
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机译：应用了粘性涂层，以确保路面的沥青层之间的正确粘合，在大多数时间不控制所获得的附着力。在加泰罗尼亚技术大学（UPC）的道路实验室，已经开发出简单的新程序，名为LCB剪切测试（Laboratorio de Caminos de Barcelona）。该测试通过测量通过在层之间的界面上施加剪切力而产生的剪切强度来评估路面层之间的粘合。测试程序，特别是试样支持系统和制造样品的过程，通过了开发过程中的几个阶段演变。在不同的温度下进行测试，无论是在干燥和潮湿的条件下，为了验证粘性涂层对水造成的损坏的电阻。使用从路面切割的芯成功地应用于现场的质量控制方法。
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