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

Monitoring & Services Concept and planning Repair and replacement of old or damaged modular expansion joints mageba - an innovative partner for renovation works 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. Because such a replacement method is not governed by any norm or standard, mageba ensures that the design is based as closely as possible on existing expansion joint design standards and national approvals. If the bridge structure is otherwise in good condition, it is desirable...

Monitoring & Services Joint replacement Procedure To optimise the work for all concerned, it is carried out in steps as described below. After removal of shuttering, the existing steel edge profiles (including waterproofing membrane connection flanges) are reinstated where removed, and equipped with new connection steel for the elastomeric sealing profiles of the joint. 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...

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 non-shrinking...