Railway applications. Track. Concrete sleepers and bearers - General requirements Ingestion-build-251241 and test procedure

and test procedure

BS M 68 provides for two types of units

The text has been aligned with ISO 4623-2

a minimum conditioning period of 14 days and a minimum exposure to increased CO2 levels of 70 days

2 Determination of major and minor constituents by ICP-OES

Railway applications. Track. Concrete sleepers and bearers - General requirements Ingestion-build-251241 and test procedure1 Scope This part of the EN 13230 series defines technical criteria and control procedures which need to be satisfied by the constituent materials and the finished concrete sleepers and bearers, i. e.: precast concrete sleepers, twin block reinforced sleepers, bearers for switches and crossings, and special elements for railway tracks. The main requirement of concrete sleepers and bearers is the transmission of vertical, lateral and longitudinal loads