Expansion joint system of concrete slab arrangement

An expansion joint system of a concrete slab arrangement, comprising:

• an expansion joint reinforcement configured to be arranged between a first and a second concrete slab, the expansion joint reinforcement having:
• a plate part configured to be arranged between the first and the second concrete slab, and
• a plurality of local dowels, each of the plurality of local dowels being formed of a dowel plate and a casing part for preventing the dowel plate from adhering to concrete of the second concrete slab, the plurality of local dowels being arranged to transfer loads perpendicular to a slab plane;
• a first reinforcement configured to be arranged in the concrete of the first concrete slab at a first upper edge of the joint between the first concrete slab and the second concrete slab;
• a second reinforcement configured to be arranged in the concrete of the second concrete slab at a second upper edge of the joint between the first concrete slab and the second concrete slab;
• a plurality of first horizontal reinforcement parts fastened to the first reinforcement and configured to be arranged in concrete of the first concrete slab;
• and
• a plurality of second horizontal reinforcement parts fastened to the second reinforcement and configured to be arranged in concrete of the second concrete slab,
• wherein:
• each dowel plate of the plurality of local dowels being attached to the plate part;
• each casing part of the plurality of local dowels being attached to the plate part, the casing part being configured to be arranged in concrete of the second concrete slab;
• each dowel plate of the plurality of local dowels has a first part configured to be arranged in concrete of the first concrete slab for adhering to concrete of the first concrete slab;
• each dowel plate of the plurality of local dowels has a second part located inside a casing part of the plurality of local dowels for preventing the second part from adhering to concrete of the second concrete slab;
• and
• the expansion joint reinforcement system includes an additional reinforcement having:
• a plurality of first clenching pins fastened to the first horizontal reinforcement parts and configured to be arranged in the vicinity of at least one local dowel in concrete of the first concrete slab and in a substantially vertical position relative to the upper and lower surfaces of the first concrete slab, each of the plurality of first clenching pins including a first lower widening arranged to adhere to concrete of the first concrete slab below at least one local dowel and a first upper widening arranged to adhere to concrete of the first concrete slab above at least one local dowel, and
• a plurality of second clenching pins fastened to the second horizontal reinforcement parts and configured to be arranged in the vicinity of at least one local dowel in concrete of the second concrete slab and in a substantially vertical position relative to the upper and lower surfaces of the second concrete slab, each of the plurality of second clenching pins including a second lower widening arranged to adhere to concrete of the second concrete slab below at least one local dowel and a third upper widening arranged to adhere to concrete of the second concrete slab below at least one local dowel.