SOLUTIONS | Cairns Regional Council Vertical Expansion Stormflow Joints Replacement Project

Date of Project: September 2017

Project Owner: Cairns Regional Council

Project Contractor: Waterstop Solutions Pty, Ltd

Project Engineer: Cairns Regional Council Market/Environment Wastewater

Substrate: Concrete

Size of Project: 12 x 2m joint replacement

THE CHALLENGE

The joints on a municipal wastewater treatment tank had degenerated to the point where repairing and resealing were necessary. Cairns Regional Council required a product with a fast cure time and rapid compressive strength gains.

Five Star® Solution

Five Star Structural Concrete® V/O was selected due to its rapid set and high early strength gains; it reaches 2,500 psi (17.2 MPa) within three hours. This rapid strength gain allowed for the repaired joints to be resealed with minimum turnaround time in preparation for the installation of a joint sealant system.

ABOUT FIVE STAR STRUCTURAL CONCRETE® V/O

This is a high-strength, rapid-setting, one-component, permanent concrete repair material for vertical and overhead structural repairs.

It produces a repair that is dimensionally stable, develops an integral bond to existing concrete, and restores structural integrity within hours of placement.

Provides increased corrosion protection to steel-reinforced structures with migrating corrosion inhibitor technology and very low chloride ion permeability. Moisture-sensitive coatings can be applied in 8 to 24 hours.

• Can be troweled vertically or overhead
• One product for thin and thick placement
• Excellent freeze/thaw resistance
• Outstanding corrosion resistance for protection and rehabilitation