1560 Lawrence Ave West – Expansion Joint

Toronto, Ontario

This project involved the repair of an expansion joint measuring approximately 6 feet wide and 60 feet long. The work included saw cutting, excavation, removal of old materials, installation of new waterproofing, and reinstatement of asphalt.

Our team completed a detailed waterproofing project, which involved several critical tasks to enhance the structural integrity and safety of the area:

Saw Cutting

Marking the Area: Clearly mark the dimensions of the expansion joint (6 ft wide by 60 ft long) on the existing surface to guide the cutting process.

Cutting Process: Use a concrete saw to precisely cut along the marked lines, ensuring clean edges to facilitate the removal of the joint material.

Excavation

Soil and Granular Removal: Carefully excavate the area within the saw-cut lines, removing all soil and granular materials. Use a mini-excavator or hand tools as necessary to prevent damage to surrounding structures.

Debris Management: Collect and dispose of all excavated materials according to local regulations, ensuring a clean work site.

Removal of Old Hot Rubber Waterproofing

Inspection: Assess the existing hot rubber waterproofing for signs of damage or wear.

Material Removal: Cut and peel away the old hot rubber waterproofing material from the concrete surface, ensuring that all remnants are completely removed.

Preparation of Concrete Surface

Cleaning: Thoroughly clean the exposed concrete surface using a wire brush and high-pressure water to remove any dirt, debris, or loose materials.

Surface Repair: Inspect the concrete for any cracks or defects. Repair as necessary to ensure a smooth, stable surface for the new materials.

Installation of New WaboCrete

Material Procurement: Obtain the new WaboCrete expansion joint material designed for durability and compatibility with existing surfaces.

Installation: Position the new WaboCrete joint into the prepared expansion joint area, ensuring it fits snugly against the concrete.

Application of New Hot Rubber Waterproofing

Preparation: Heat the new hot rubber waterproofing material according to manufacturer specifications.

Application: Apply the hot rubber waterproofing evenly over the installed WaboCrete, ensuring full coverage and a proper seal against moisture.

Reinstatement of Granular Base

Granular Material Supply: Source new granular material suitable for use as a base around the expansion joint.

Installation: Fill the excavated area with the new granular material, ensuring it is evenly distributed.

Compaction: Compact the granular base thoroughly using a mechanical compactor to ensure stability and prevent future settling.

Supply and Install New Asphalt

Asphalt Procurement: Source asphalt that matches the existing surface in composition and appearance.

Application Process: Heat the asphalt to the appropriate temperature. Spread the new asphalt over the reinstated granular base, ensuring an even and smooth finish. Compact the asphalt using a roller to achieve the desired density and to ensure it aligns with the surrounding surface.