VHAL aluminum-alloy rail expansion joint made by Vinh Hung Investment and Production Co., Ltd (Vinh Hung IP) comprises of two aluminum-alloy carrier rails with anchor bars connected to the embedded bars in the pier cap or head-wall of abutment, elastomeric strip serves as the drainage trough and prevent dusts and debris, nosing material: non-shrink mortar mortar or non-shrinkage concrete with minimum compressive strength of 40Mpa. 2. PRODUCT CHARACTERISTICS Totally accommodate to longitudinal movement up to 80mm, and also vertical and transverse movement if appear. Simple in design and installation, high load bearing and durability. Stability structure thanks to anchor rods connected by high-strength bolts. Perfect anti-corrosion and anti-abrasion thanks to the properties of aluminum alloy. Totally water-tight. Options for rubber seal: Client may select conventional seal or hump seal for preventing dusts and debris clogged. Smooth surface with professional hanger system installation method