Fixing Expansion Joint

 

Fixing Elastomeric Expansion Joint

Step 1:  Theoretically after Completion of Deck slab Spacing shall be left for installation of Expansion joint at the time of laying wearing surface mostly Bituminous, but practically it's not possible due to roller movement and compaction issue as it can spread on joint at the time of compaction. So, wearing surface is laid throughout then cutting is done up to rough deck slab surface.

Step 2: Thorough cleaning is done as cutting leaves lots of debris behind, damaged or dead mortar shall be removed.

Step 3: Place reinforcement appropriately, Install foam in the appropriate separator.

Step 4: Start drill for bolts after cleaning the area and fix the bolts with special materials.

Step 5: Reinforcement beam is made to carry the elastomer's part.

Step 6: Fixing the elastomers parts and adjusting it with bolts and fixing toes above it and sealing.

Expansion Joint Replacement Work Old to New Single Strip Seal

Scope of Work:

1. Site Preparation:

Close and secure the work zone as per traffic management plan.

Ensure safety measures including signage, barriers, and PPE compliance.

2. Removal of Existing Joint:

Carefully remove the existing expansion joint system including joint material, nosing concrete and debris. Saw-cut edges are necessary to provide a clean and uniform interface for new installation.

3. Surface Preparation:

Clean and inspect the joint gap and surrounding area.

Ensure substrate is free from dust, oil, rust, and loose particles.

Apply bonding agent or primer where required.

4. Installation of New Single Strip Seal Joint:

Install preformed elastomeric strip seal and compatible steel edge retainers per manufacturer's specifications.

Anchor the steel retainers into the concrete deck with approved mechanical or chemical anchorage.

Insert the elastomeric seal into the retainer grooves ensuring full and uniform seating.

5. Reinstatement and Finishing:

Seal and finish joint edges to ensure watertightness.

Conduct final alignment and leveling to ensure a smooth vehicular transition.

Cure materials as required and inspect for continuity and uniformity.

6. Testing and Handover:

Perform water tightness and alignment checks.

Clean the site and remove temporary traffic control after completion and approval.