Railway applications - Track - Concrete sleepers and bearers - Part 4: Prestressed bearers for switches and crossings; German version EN 13230-4:2016— 24 стр.
Testing hardened concrete - Part 10: Determination of the carbonation resistance of concrete at atmospheric levels of carbon dioxide; German version EN 12390-10:2018— 24 стр.
Testing hardened concrete - Part 10: Determination of the carbonation resistance of concrete at atmospheric levels of carbon dioxide; German version EN 12390-10:2018— 24 стр.