LEGEND OF CIVIL

 why the Ballastless track or slab track only used in tunnels in bridges? Ballastless track or slab track is only used in tunnels, bridges, and sometimes in railway platforms because slab track systems require stable subsoil basically free of settlement in order to perform adequately. The substructure of the slab track must be down to a depth of 2.5m below the bearing plate by special earthwork treatment that increases the cost and drainage problem is also issue to perform the Ballastless track that's why Ballastless track not used in the open rail track.   

Ballastless Track Ballastless track or slab track is a type of track system construct without using ballast. We are using mines waste as railway track ballast having various advantages but at a certain limit. like The ballasted track requires a low investment cost. The ballasted track is usually easy to lay. The ballasted track has good drainage performance.  Good quality track ballast is made of  crushed stone                                  Ballastless Track (BLT) in india Made of concrete and asphalt that are replacing standard ballast track. Due to the use of concrete it becomes very stiff and brittle. to obtained elasticity we generally provide elastic pad below the rail. There are two types of concrete are going to using in Rheda 2000. Precast Sleepers In situ Concrete  Precast Sleepers It is made-up of Semi Pre cast Bi Block sleepers which consist of two blocks linked with ea...