The BETA JOINT expansion joint structure consists of two 2 mm thick galvanized steel sheets which are divider plates. Both divider plates are folded at the whole length, bottom and top, and the folds are perforated to provides reliable anchoring of sheets in concrete, increases strength and rigidity of expansion joints by limiting their "twisting".
Expansion profiles are characterized by 12 mm protection of the edges of concrete slabs on both sides of the joint. Radiused edges on the top inside corners help reduce damage to forklift wheels. The sharp edge on the inside top face of each hole helps ensure a precise finish when trowelling-in.