BS EN 12697-48:2021 PDF Download

BS EN 12697-48 is a standard that specifies test methods for determining the bond strength between an asphalt layer and other construction layers or existing substrates in road or airfield pavements. The standard includes three normative tests: Torque Bond Test (TBT), Shear Bond Test (SBT), and Tensile Adhesion Test (TAT), which are applicable to different layer thicknesses. These tests can be conducted on both newly constructed construction layers and laboratory prepared interlayers.

The standard is intended for manufacturers and suppliers of bituminous mixtures and asphalt, asphalt refining plants, suppliers of construction materials, construction and civil engineers, contractors, and road maintenance authorities. It provides guidance and a standardized approach to ensure the quality and durability of bituminous pavements by evaluating the bond strength between asphalt layers and other construction layers.

By using BS EN 12697-48, stakeholders in the road construction industry can assess the interlayer bonding of asphalt layers and make more informed decisions regarding the selection of materials and construction methods. This can result in more durable and long-lasting pavement structures, reduce maintenance requirements, and mitigate the risk of layer delamination and water ingress.