prestressing Archive

Uses of Prestressed Concrete

April 2, 2013

There are a huge number of uses: • Railway Sleepers; • Communications poles; • Pre-tensioned precast “hollowcore” slabs; • Pre-tensioned Precast Double T units – for very long

Education

There are two methods of prestressing: • Pre-tensioning: Apply prestress to steel strands before casting concrete; • Post-tensioning: Apply prestress to steel tendons after casting concrete. Pre-tensioning

Education

Prestressed Concrete Materials

April 2, 2013

Concrete The main factors for concrete used in PSC are: • Ordinary portland cement-based concrete is used but strength usually greater than 50 N/mm2; • A high early