Improvement of adhesive layer composition for bituminous tapes

Climatic changes and increase in transport load on highways lead to significant decrease in unrepaired operation terms of pavements in case traditional materials and technologies are used. Bitumen edge tapes and butt joints have proven to be an effective tool against cracking in the place of various joints and surface joints in the framework of road infrastructure. A distinctive feature of the tapes considered in this study is the presence of an adhesive layer on their wide extended surface. The reason for using an additional adhesive layer is the need to ensure reliable attachment of the on-board tapes with adjacent surfaces. First of all, it concerns the concrete and metal surfaces with which asphalt concrete mixtures are in contact when forming the road pavement. The adhesive coating has to ensure a satisfactory adhesion both to the adhered surface and to the bituminous tape itself throughout the entire range of its storage and application, as well as the subsequent operation of the road or the bridge surface. The purpose of this study was to optimize the polymer composition of the adhesive for on-board bituminous tapes. Only domestic thermoplastics and thermoplastic elastomers were used in the development of such an adhesive.