With over 70 years of industry experience, CRL has the technical expertise and practical knowledge to address a wide range of concrete deterioration issues. Repair strategies are tailored to the nature and extent of the defect, with access to a broad selection of approved products from multiple leading suppliers.

Capabilities Include:

⦁ Skilled operatives experienced in the application of repair mortars, injection resins, and surface coatings using a variety of techniques and equipment

⦁ A comprehensive fleet of company-owned repair and injection tools

⦁ Implementation of standardised quality and safety procedures across all remedial works

⦁ Strong partnerships with major product manufacturers, with CRL recognised as approved applicators

Key Repair Applications

• Cementitious Patch Repair

Commonly used to address concrete spalling, where corrosion of embedded steel reinforcement causes cracking and delamination. Spalling not only presents safety risks due to falling debris but also accelerates deterioration through increased exposure to contaminants. Repairs are conducted in accordance with engineering specifications, often incorporating galvanic sacrificial anodes to provide long-term corrosion protection. Inadequate or low-cost repairs may fail to address underlying issues and pose further hazards.

• Honeycombing & Blowholes

These surface voids typically result from poor placement or compaction of concrete. Left untreated, honeycombing can reduce concrete cover and compromise durability by accelerating steel corrosion. Repairs are carried out to restore the original design-specified surface cover and improve structural resilience.

• Bubbling Paint & Efflorescence

Surface defects such as blistered coatings and salt deposits are often caused by improper surface preparation or environmental factors during application. These defects compromise protective coatings, allowing carbonation and moisture ingress that can lead to steel corrosion. Remedial work involves removal of defective coatings, proper substrate preparation, and reapplication in accordance with manufacturer specifications.

• Rendering

Applied primarily on poorly finished shotcrete walls or rough substrates, rendering provides a smooth and level surface suitable for subsequent membrane application. Rendering improves both the visual appearance and functionality of the structure by ensuring compliance with membrane manufacturer installation standards.

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