What it is
Slag improves the cement's resistance to sulphates and chlorides, and lowers the heat it gives off. It is often used for foundations, marine and coastal work.
Key points
- Good resistance to salts and sulphates
- Low heat of hydration
- Slower early strength
- Uses an industrial by-product
Why it matters
Near the coast or on salty soil, PSC helps concrete and steel last longer.
How Elamentt handles it
Used where the structural engineer specifies it, for example in foundations on aggressive soil.