Affiliation:
1. EPFL – Swiss Federal Institute of Technology and BridgIng Consulting, Lausanne, Switzerland
Abstract
<p>Structural application of impermeable, tensile strain hardening UHPFRC (Ultra-High-Performance Fibre-Reinforced-Cementitious Composite) follows two fundamental concepts: 1) Rehabilitation and strengthening of existing bridges by adding a layer of UHPFRC, and 2) Construction of new bridges in UHPFRC. This paper presents recent UHPFRC project realized in Switzerland using UHPFRC for the salvation of deficient reinforced concrete bridges, to improve their structural resistance and durability, as well as to extend their service duration. This allows to avoid the common practice consisting in the material and cost invasive “demolition-replacement” still largely applied. In this way, the UHPFRC Technology using a small amount of a novel building material provides a significant contribution towards sustainability since UHPFRC allows to preserve the existing bridge, its original materials and embodied energy.</p>
Publisher
International Association for Bridge and Structural Engineering (IABSE)
Reference7 articles.
1. International Perspective on UHPC in Bridge Engineering;Benjamin Graybeal;Journal of Bridge Engineering (ASCE)
2. A Review of the Use of UHPFRC in Bridge Rehabilitation and New Construction in Switzerland;Numa Bertola;Frontiers in Built Environment
3. UHPFRC technology to enhance the performance of existing concrete bridges;Eugen Brühwiler;Structure and Infrastructure Engineering
4. SIA Standard 2052 "UHPFRC materials, dimensioning and execution", Swiss Society of Engineers and Architects, Zurich Switzerland, 2016 (revised version 24 Dec 2021).
5. Strengthening of the Riddes Viaduct Through UHPFRC-Based Rehabilitation;Hammad El Jisr;Structural Engineering International