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News

11th Mar 2024

Webinar: Is RAAC even concrete? Recent research into reinforced autoclaved aerated concrete

We are excited to announce that Christian Stone, the CPT expert on corrosion in RAAC, will be delivering a Concrete Society technical presentation webinar alongside Prof Chris Goodier on Thursday …

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25th Oct 2023

CPA Project of the Year Winners (RAAC)

Concrete Preservation Technologies Ltd is the proud recipient of the 2023 Project of the Year award for our work on RAAC panel corrosion investigation and management for the NHS. CPT …

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18th Sep 2023

RAAC in Schools – Nature asks CPT’s technical consultant Christian Stone ‘Why is concrete crumbling?’

More than 100 schools and public buildings in the United Kingdom are facing closure because of reinforced autoclaved aerated concrete (RAAC), a building material used extensively throughout the country and …

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15th Sep 2023

(Video) RAAC Expert answers frequently asked questions

During the last few weeks many misunderstandings and questions have been raised to us and in media. Bringing together some of the most common questions we have created a little …

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14th Sep 2023

CPT unique corrosion solutions for RAAC

During the last 4 years CPT has been undertaking research into RAAC. We have partnered with Loughborough University RAAC Research Group investigating RAAC planks (roofs) and have worked independently with our partners in the NHS researching RAAC …

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11th Jul 2023

CPT legal costs paid by North American Company

To our many valued customers around the world, we are very pleased to announce the receipt of legal costs incurred during our defence of exclusive ownership of DuoGuard. Over several …

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27th Jun 2023

Concrete Magazine publishes 15 years of DuoGuard monitoring data

Whiteadder Bridge spans the Whiteadder River in Berwick-upon-Tweed, Northumberland. Inspections had revealed substantial areas of spalling/loose concrete and salt deposits in the main substructure.

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11th Aug 2022

Statement on ownership of DuoGuard Hybrid Anode Technology

CPT is delighted to announce the successful outcomes of two long-running patent cases relating to CPT’s DuoGuard Hybrid Anode Technology.

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3rd Aug 2022

CPT feature in Concrete Magazine

CPT were approached to design an appropriate corrosion control solution for this architecturally significant London Borough of Camden housing block. The challenge was to protect concrete encased I beams from …

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21st Apr 2021

Case studies of hybrid and galvanic systems on bridge structures

A key technical paper by industry experts, submitted to Concrete Solutions 2019, examines the design challenges and performance characteristics of galvanic and hybrid corrosion protection systems on a number of …

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22nd Jun 2020

Highways England Publishes Standard Specification for Galvanic Anodes within Patch Repairs

It is widely understood that the use of galvanic anodes within concrete patch repairs can extend repair life and prevent adjacent corrosion initiation when the surrounding concrete is contaminated with …

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4th Sep 2019

Preston Bus Station Car Park – An Award-Winning Refurbishment

When it came to the challenge of extending the life of this famous brutalist structure, CPT were called in to offer expert advice and provide innovative solutions to control corrosion …

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