Reactive Repair

Workers applying fresh concrete during repair works illustrating the halo effect in concrete repairs and long-term durability risks

Concrete Performance, Reactive Repair

The Halo Effect in Concrete Repairs: Why Good Repairs Can Make Things Worse

Johan van Wyk / 29 April 2026

By Johan van Wyk (MICT), N.Dip Civil Engineering | Technical Engineering Support, Penetron Africa The halo effect in concrete repairs […]

Concrete surface showing permeability and chemical exposure effects

Concrete Durability, Concrete Durability / Sustainability, Concrete Performance, Reactive Repair

Chemical Resistance in Concrete: Permeability, Penetration and Controlled Deterioration

Wiljee Blom / 31 March 2026

By Wiljee Blom, N-Dip (Civ. Eng.), Stage 3 Concrete Technologist, Technical Manager, Penetron Africa Chemical resistance in concrete is often