PatchGuard™ Galvanic Strip Anodes

extends the life of patch repairs

  • 2nd generation targeted protection
  • Up to 20 years protection
  • Galvanic protection for use in patch repairs
  • Manufactured in the UK to ISO9001

Our Patchguard™ Galvanic Strip Anodes redress the electrochemical imbalance induced through removal of contaminated concrete in patch repairs, commonly known as the Incipient Anode Effect. PatchGuard™ Galvanic Strip Anodess corrode preferentially to the surrounding steel – protecting it from further corrosion damage.

Problem

PatchGuard™ combats the two main types of corrosion found in reinforced concrete structures

Carbonation induced – exposure to atmospheric carbon dioxide combined with prolonged contact to sufficient moisture and oxygen can leave steel vulnerable to corrosion.

Chloride induced – if chloride in the form of inherently mixed set accelerators or external aggressive salts permeates reinforced concrete in sufficient quantities, an aggressive form of corrosion can be initiated.

When either or both of these take hold in a structure, this can lead to the concrete cracking and being displaced as the steel reinforcement expands and pushes out. The corrosion and its effects often propagate very quickly – so it is crucial to be proactive in assessing and fixing the issue to protect the structure and maintain its asset value.

PatchGuard Strip Anode System

PatchGuard Strip is used to control corrosion and mitigate cracking and spalling of sound but contaminated reinforced concrete where a corrosion risk has been identified. The profile of PatchGuard Strip makes it ideal for installing into slots in the concrete cover zone or into bedding joints and provides enhanced current distribution.

Product Thickness width length Zinc Weight
Patchguard Strip – 200 3.5mm 20mm 200 mm 58g
Patchguard Strip – 550 3.5mm 20mm 550 mm 158g

Benefits

  • Compact size to fit into 6mm (¼”) wide slots
  • Quick and easy to install
  • Corrosion resistant connection system
  • No need to break out contaminated concrete
  • Suitable for carbonated and chloride contaminated structures
  • No need to pre-soak anodes
  • Pre-mixed embedding mortar in handy cartridge
  • Measurable performance
  • Up to 20-year service life*

Downloads

PatchGuard Strip Anode System
PatchGuard technical Data Sheet – PatchGuard Strips
Patchguard P Paste -Technical Data Sheet