ASTM D2628-91 (R2016) PDF Download

The ASTM D2628-91 (R2016) standard covers the material requirements for preformed polychloroprene elastomeric joint seals used in concrete pavements. These seals consist of a multiple web design and are installed with a lubricant. The purpose of the seal is to provide compression between the joint faces, with the seal folding inward at the top to facilitate compression.

The material used for these seals must be a vulcanized elastomeric compound made solely from polychloroprene as the base polymer. The standard specifies various physical properties that the material must comply with, including tensile strength, elongation, hardness, oil swell, ozone resistance, low-temperature stiffening, low-temperature recovery, and compression deflection.

It is important to note that this standard is focused on the material requirements for manufacturing and purchasing the joint seals and does not include considerations for their selection or installation. However, it is mentioned that the proper selection of size and cross-sectional design of the joint seal, as well as care in installation, are crucial for successful performance. The standard also emphasizes the responsibility of the user to establish appropriate safety and health practices and determine the applicability of regulatory limitations.