- Corrosion Experts
- Technical Groups
The New South Wales Branch of the ACA invites all our members to attend our joint event on Durability Challenges with the Concrete Institute of Australia (CIA).
Concrete is forever faced with durability challenges in a number of different applications, environments and uses. In more recent times, durability of concrete structures has taken on an even more important part of any design, specification or asset maintenance program as we seek to extend the useful life of buildings and infrastructure to reduce waste and unnecessary demolition. Our seminar on Concrete Durability Challenges includes experienced presenters who will consider some of the challenging aspects that are being confronted today around planning and assessment, risk, repair and adaptive re-use.
Date: Wednesday 18th October 2023
Time: 6.00pm – 9.00pm
Venue: Kirribilli Club – 11 Harbourview Crescent, Lavender Bay NSW 2060
5.30pm – Entry & Name Tag Collection
6.00pm – Welcome, Introduction and Presentations
7.45pm – Question Time / Discussion
8.15pm – Networking. Drinks and Light Refreshments
9.00pm – Close
Hamid Khan; Forensic Engineering Specialist (Fosroc)
Presentation Outline: Durability Risks and the Integrated Approach for Durable Concrete Repairs
All concrete structures must be managed and maintained to achieve the required operational service life. Existing concrete structures in Australasia can suffer from significant deterioration due to corrosion of the reinforcement which causes spalling of the concrete and eventually threatens the structural integrity. To accomplish durable repairs, it is imperative to examine the factors affecting the design and selection of repair systems. The precise specification of concrete repairs is one of the critical factors that dictate the success of any repair process. Deterioration of concrete is a complex matter, influenced by numerous physical, chemical, mechanical, and environmental factors. This makes each concrete repair a little bit unique from the previous. Repairs are costly, time-consuming, and disruptive, so ensure you get it right the first time.
The adoption of high standards for design and construction in new concrete structures has become a major focus today. The construction industry has recently been witnessing ever-increasing expectations for its design life. The session will highlight the durability risks to structures and the use of innovative high-performance durable repair systems during and after the construction phase. The presentation will look at the challenges of premature failure of repaired concrete structures despite the improvement in the repair materials and methods. This session will also encompass the importance of defining the requirements of high-service life repair and protection materials.
Amanda Chen; (Freysinnet Australia)
Presentation outline: Challenges in Durability Assessments
The whole-of-life cost of civil infrastructure can be reduced if maintenance requirements are reduced by carefully considering durability during the Concept and Detailed design stages. The presentation explores the use of the TfNSW standard ‘T HR CI 12002 ST Durability Assessment Durability Requirements for Civil Infrastructure’ for Durability Assessments. The purpose of the standard is to specify requirements to increase the durability and reduce maintenance of new railway civil infrastructure.
Civil infrastructure designers and durability engineers are responsible for ensuring that the selected design, materials, construction and associated maintenance will achieve the durability objectives and requirements for each civil infrastructure asset and asset component. This shall be achieved in conjunction with the specified design life for that particular asset.
Challenges faced during Durability Assessments include not proactively addressing durability concerns at early stages in the project, limited geotechnical/durability investigations and lack of consideration when re-using of existing structures. Further, some of the ‘deemed to comply with requirements’ contained in AS 5100 and TfNSW QA Specification B80 that apply to maintainable assets with a service life of 100 years can be insufficient for civil infrastructure within the rail corridor.
Irene Susanto; Senior Materials Engineer (BG&E)
Presentation outline: Durability Considerations in Adaptive Re-use Building Projects
Adaptive re-use of buildings refers to the process of redeveloping or repurposing structures that have outlived or have changed their purpose. This process can provide social, environmental, and economic benefits by preserving old structures, reducing the need for new construction, and revitalising urban centres. However, to ensure that these existing structures remain fit for purpose and meet the new design and service life, durability planning, assessment and design are vital. This presentation will explore some of the considerations reqquire in the adaptive re-use of concrete buildings.
To register for the event, please click HERE