Sydney Harbour Bridge Waterproofing and Restoration

Sika at Work
January, 2012
Sydney Harbour Bridge
Waterproofing and Restoration
Product: •Sikalastic® 841ST
Waterproofing
Requirements:
In January 2012 the Sydney Harbour Bridge underwent it’s largest
refurbishment since construction. Works included resurfacing and
replacement of its original and now 80 year old waterproofing system.
The waterproofing system selected was required to meet stringent
performance criteria as specified by New South Wales Roads and
Maritime Services (formerly RTA) including adhesion, tensile and
flexural testing as well as cyclic performance.
Due to the impact of bridge closure on traffic congestion within the
Sydney CBD the application and curing of the waterproofing system
had to be very fast.
Solution:
After a rigorous series of laboratory and field testing the Sikalastic®
bridge deck waterproofing system was selected.
Concrete Remedial Services applied 10,000m2 of the Silalastic®
waterproofing system to both the northern and southern bridge
approaches.
Products used:
Concrete Primer
Broadcast aggregate
Sikalastic® 841ST polyurea
Sikafloor® 161
Sikalastic® 827HT hot melt pellets
Project Details:
Date: January 2012
Location: Sydney, NSW
Contractor:Concrete Remedial Services
Sika Representative: Jamie Byrne
Quality
ISO 9001