Concrete Sleeper for High Dynamic Loads and Method of Manufacturing the Same

Abstract

Concrete sleeper for high dynamic loads having rail support surfaces ( 2 ) and a lower sole region, consisting of a high-strength standard concrete ( 4 ) capable of withstanding high compression forces, whereby the rail support faces ( 2 ) and/or the lower sole region consist(s) of a wear-resistant, abrasion-resistant or tension-resistant material.

1 . Concrete sleeper for high dynamic loads having rail support surfaces and a lower sole region comprised of a high-strength standard concrete capable of withstanding high compression forces wherein the rail support faces and/or the lower sole region comprises a wear-resistant, abrasion-resistant or tension-resistant material. 
   
   
       2 . Concrete sleeper according to  claim 1 , characterised wherein the wear-resistant, abrasion-resistant or tension-resistant material is a prefabricated plate or profile or a metal angle, in particular a steel angle 
   
   
       3 . Concrete sleeper according to  claim 1 , wherein the wear-resistant, abrasion-resistant or tension-resistant material is a concrete layer bonded to the standard concrete and/or is a special concrete. 
   
   
       4 . Method of manufacturing a concrete sleeper for high dynamic loads comprised of a high-strength standard concretes capable of withstanding high compression forces, having rail support surfaces and a lower sole region, the rail support surfaces and/or the lower sole region is/are manufactured from a wear-resistant, abrasion-resistant, or tension-resistant material, which is inserted into a sleeper mould below or on the standard concrete as a prefabricated plate or profile and bonds to the standard concrete as this hardens. 
   
   
       5 . Method of manufacturing a concrete sleeper according to  claim 4 , wherein a metal angle, in particular a steel angle, is inserted as the wear-resistant, abrasion-resistant or tension-resistant material. 
   
   
       6 . Method of manufacturing a concrete sleeper according to  claim 4 , wherein the wear-resistant, abrasion-resistant or tension-resistant material as a first concrete layer and/or as special concrete is bonded to the standard concrete wet-on-wet in a sleeper mould and is hardened. 
   
   
       7 . Method of manufacturing a concrete sleeper according to  claim 6 , wherein different types of concrete are introduced one after another into the sleeper mould and are mixed in the border region by shaking or vibrating in order to form a monolithic body. 
   
   
       8 . Method manufacturing a concrete sleeper according to  claim 4 , wherein a preferably prefabricated plate of plastics material is used. 
   
   
       9 . method of manufacturing a concrete sleeper according to  claim 8 , wherein the plate is introduced into the sleeper mould in a liquid or still-plastic form and in this state forms a bond with the concrete.