Stahl-UHFB - Stahlbeton Verbundbauweise zur Verstärkung von bestehenden Stahlbetonbauteilen mit Ultra-Hochleistungs-Faserbeton (UHFB)
|Published in:||Beton- und Stahlbetonbau, April 2013, n. 4, v. 108|
Strengthening of existing reinforced concrete elements using Ultra-High Performance Fiber Reinforced Concrete (UHPFRC)
An original concept is presented for the strengthening of concrete structures. The main idea is to use Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) complemented with steel reinforcing bars to strengthen those zones of the structure that are exposed to severe environmental influences and high mechanical loading. This concept combines efficiently protection and resistance properties of UHPFRC and significantly improves the structural performance of the rehabilitated concrete structure in terms of durability. Properties of UHPFRC are outlined and the essential theoretical background of structural behavior of R-UHPFRC - RC composite elements is given. This novel technology has been validated by means of field applications.
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