Reinforced Autoclaved Aerated Concrete planks  (RAACs)
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Reinforced Autoclaved Aerated Concrete planks (RAACs)

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Reinforced autoclaved aerated concrete (RAAC) is a form of lightweight concrete sometimes referred to as panels. It was used primarily in roof planks of some public buildings built between the mid-1950s and mid-1990s.

 

Why was this study group formed?

Following failures in reinforced autoclaved aerated concrete (RAAC) planks/panels, SCOSS issued an alert along with reports of failures to CROSS. This led to the Institution setting up this study group to provide a place for information and guidance on RAAC. You do not need to be a member of the Institution in order to join the study group - it is open to all.
Join the group to receive updates     Further information on RAAC

 

IStructE Resources

Guidance
<h4>Reinforced Autoclaved Aerated Concrete (RAAC) panels: Investigation and assessment</h4>

Reinforced Autoclaved Aerated Concrete (RAAC) panels: Investigation and assessment

This free guidance provides identification and remediation solutions for Reinforced Autoclaved Aerated Concrete (RAAC) planks. RAAC has been used in building structures in the UK and Europe since the late 1950’s, most commonly as precast roof panels in flat...

Date – 7 March 2022
Author – RAAC Study Group
Price – Free
Guidance
<h4>Reinforced Autoclaved Aerated Concrete (RAAC) Investigation and Assessment – Further Guidance</h4>

Reinforced Autoclaved Aerated Concrete (RAAC) Investigation and Assessment – Further Guidance

This report provides further guidance on the critical risk factors associated with RAAC panel construction. It includes a proposed approach to the classification of these risk factors and how these may impact on the proposed remediation and management of RAAC....

Date – 17 April 2023
Author – RAAC Study Group
Price – Free
News
Image showing a brick of building materials

IStructE statement & FAQs: Reinforced Autoclaved Aerated Concrete (RAAC)

The latest RAAC guidance and how to mitigate risk moving forward.

Date – 25 October 2023
Author – IStructE
Training
Image showing a brick of building materials

RAAC essentials for structural engineers

Learn how to identify, assess, manage and remediate reinforced autoclaved aerated concrete (RAAC) defects in buildings.

Date – 11 March 2024
Author – Various
Price – £162.5 - £325 + VAT

Related Resources

You can confidentially share your experiences on RAAC planks with CROSS

 

Course
A hand laying bricks

Reinforced concrete essentials

This course establishes good practice in the design of reinforced concrete structures. Through practical exercises, it will cover concept, design, flat slabs and finite element analysis.

Date – 29 October 2024
Location – Online
Price – £295 - £445 + VAT
Course
Looking up to glass roof within a building

Understanding structural behaviour

This two-day course shows engineers how to arrive at a qualitative solution to both create a structure and check computational results.

Date – 15 October 2024
Location – 47-58 Bastwick St, London, EC1V 3PS
Price – £515 - £765 + VAT
Course
Excavator demolishing structure

Demolition and structural refurbishment

This course provides guidance on specific aspects of demolition and refurbishment from an engineering perspective, while addressing safety, environmental and sustainability influences.

Date – 3 October 2024
Location – 47-58 Bastwick St, London, EC1V 3PS
Price – £295 - £445 + VAT