mageba repair and replacement services for modular expansion joints
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mageba repair and replacement services for modular expansion joints - 1

Monitoring & Services mageba repair and replacement services for modular expansion joints minimal encroachment, quick installation, reduced cost

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mageba repair and replacement services for modular expansion joints - 2

Concept and planning Repair and replacement of old or damaged modular expansion joints In the course of routine structural inspections, damage to expansion joints and deterioration due to age is often observed, which may require a joint to be replaced. If the bridge structure is otherwise in good condition, it is desirable to minimise the effort required and only replace the expansion joint itself, without any impact on the bridge's structure. To make this possible, mageba has developed a method which enables the substructure of the old joint to be left in place, saving the need to break it...

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mageba repair and replacement services for modular expansion joints - 3

Joint replacement Procedure To optimise the work for all concerned, it is carried out in steps as described below. Step 1: Removal of the old elastomeric sealing profiles and lamella beams (centerbeams), and the steel edge profiles at each support bar location. The top of each support bar box is then cut away, enabling the old support bars to be removed. This also clears the way for the support bar boxes of the new joint to be inserted. Step 2: All parts which are to be retained are first cleaned of rust by hand, to enable their condition to be evaluated, and then cleaned by sandblasting. A...

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mageba repair and replacement services for modular expansion joints - 4

Monitoring & Services Suggested text for tender requests Renewal of an existing modular expansion joint. Removal of all load-bearing and moving parts of the existing joint, and replacement with a new watertight modular expansion joint of proven quality and durability. Retention of the existing substructure (concreted-in parts) to support the new expansion joint. All necessary surface treatment and corrosion protection works are to be included in the pricing. Target thickness of corrosion protection to be 390 µm. All voids between existing and new support bar boxes to be filled with...

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