What is BS EN 12390‑18 about?
BS EN 12390‑18 is the 18th part of the multi-series standard BS EN 12390.
BS EN 12390‑18 specifies the procedure for obtaining the non-steady-state chloride migration coefficient of specimens of hardened concrete at a specified age. The test procedure does not take into account any interaction of concrete with the saline solution over time.
Threshold values established in BS EN 12390-18 takes into account possible electric conductivity in aggregate or embedded elements (such as metallic fibres or conducting particles), which affects the magnitude of chloride migration.
NOTE: The test procedure does not apply to concrete specimens with surface treatments such as silanes.
Who is BS EN 12390‑18 for?
BS EN 12390‑1 on testing concrete against chloride penetration is useful for:
- Cement manufacturing companies
- Suppliers of raw materials for concrete
- Civil engineers
- Construction companies
- Contractors
- Concrete specialists
Why should you use BS EN 12390‑18?
Hardened concrete is a strong and durable construction material. Characteristic strength, drying shrinkage, modulus of elasticity, permeability, and resistance to chemical attack are the rigid and time-dependent properties of concrete that can affect structural performance.
The diffusivity of chloride is an important factor to consider when testing the concrete used in building construction because it can affect the durability of the concrete. This standard specifies the test methods for determining the test specimen's non-steady-state chloride migration coefficient.
The test result provided by BS EN 12390-18 is a durability indicator with respect to the resistance of the concrete investigated against chloride penetration.
As a buyer of BS EN 12390-18, you will be able to avoid any potential corrosion of the reinforcing steel as a result of chloride penetration. Assessment of chloride permeability can help you improve durability and serviceability of the structure while enhancing efficiency, safety and aesthetics. On the whole, BS EN 12390-18 can be beneficial as a quality control measure for your projects