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Controlling Corrosion

CPT design and supply leading edge corrosion solutions for reinforced concrete structures. Manufactured in the UK, our unique products include the popular PatchGuard and DuoGuard systems for cathodic corrosion protection.

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DuoGuard™ Hybrid Anodes

DuoGuard Hybrid anodes can be used to protect against the corrosion of traditional steel reinforcement, pre-stressed and post tensioned concrete reinforcing elements without the need to break out sound concrete.

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Welcome to Concrete Preservation Technologies

At CPT we are proud to design and manufacture cutting edge corrosion control solutions for reinforced concrete structures and masonry encased steel framed buildings. From our UK base we manufacture and distribute our unique DuoGuard and PatchGuard systems worldwide.

If you manage or own a structure suffering from corrosion related cracking and spalling we would be delighted to hear from you. Our corrosion experts are on hand to assist you with concrete testing, specification preparation and supply of corrosion control materials. Our aim is always to extend structural life and minimise maintenance costs.

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We produce products which represent the latest technologies for reinforced concrete corrosion repair. Manufactured in the UK to ISO 9001, our innovative and proven products include the DuoGuard™ Hybrid anode and PatchGuard™ galvanic anode.


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Following initial assessment CPT’s BS 15257 level 3 qualified staff can design an efficient, cost-effective corrosion mitigation solution for your structure. We design a range of cathodic protection systems— from simple sacrificial anode designs to full ISO Standard EN12696: 2012.


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CPT offer a range of physical assessment services for reinforced concrete structures. We undertake testing of structures, analyse and evaluate the data obtained on site and provide a rapid appraisal of the extent of corrosion and possible mechanism.


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Learn from the industry experts about the causes of corrosion, survey techniques and the latest technological advances in corrosion control. CPT are pleased to offer a choice of fully certified one hour CPD seminars held at your premises.


Contact one of our specialists today for more information on any of our products or services.

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Worldwide Clients

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Latest News

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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