Strain Hardening UHPFRC: Optimization for Tensile Loading Behaviour using High Modulus Polyethylene Fibres

Combining the high strength of Ultra High Performance Concrete (UHPC) and the strain capacity of Strain Hardening Cementitious Composites (SHCC), Strain Hardening Ultra High Performance Fibre Reinforced Concrete (SH­UHPFRC) could be a promising material for the application of strengthening RC elements. This research describes the development of...

Damage Detection in Ultra High Performance Concrete using Embedded Smart Aggregates

The distinct feature of UHPC is the tensile strain hardening phenomena and high compressive strength. We can either use this potential as an additional safety margin in structures or design structures with no passive reinforcement.<br/>The advancements in active structural health monitoring devices have opened further possibilities to validate...

Technical feasibility of a quick bridge replacement strategy with minimal traffic hindrance: On the retainment of existing foundations and the application of Advanced Cementitious Materials in an Accelerated Bridge Construction method

Bridges are a crucial part of the dense Dutch highway network. Almost 50% of the current bridges are built between 1960 and 1980 for an intended service life of 50 years and thus they might reach the end of their lifetime in the near future. This strongly indicates that a large challenge can be expected regarding infrastructural replacement.<br/...

Application of Ultra High Performance Concrete in the new Leiden Bridge

A study has been performed in the application of Ultra High Performance Concrete (UHPC) in the new Leiden Bridge. It has been compared with normal strength and high performance concrete. The goal was to investigate if UHPC could be used as a serious alternative next to other types of concrete for a design in bridges. The research showed that...

Application of Ultra High Performace Fibre Reinforced Concrete in the Building Engineering

Material properties of concrete have developed rapidly in the past fifteen years. With the advent of Ultra High Performance Fibre Reinforced Concrete (UHPFRC) a new material has emerged which is; much stronger, stiffer and durable than conventional concrete. Nonetheless despite these promising developments and due the high material costs UHPFRC...

Ultra High Performance Fibre Reinforced Concrete applied in Railway Bridges

A parameter study to the most governing design aspects and geometry in trough- railway bridges and how the application of Ultra High Performance Fibre Reinforced Concrete (UHPFRC) influence this.

UHPFRC in Architecture

The first part of this paper provided a brief overview of how UHPFRC is made and why it can achieve such high mechanical properties. At this moment UHPC can easily achieve compressive strengths of 200 MPa, which is about seven times higher than ordinary concrete. However the tensile strength remains normative for structural design. The flexural...

The elevated metro structure in concrete, UHPC and composite

In some large cities, the infrastructure is elevated high above the ground. An elevated metro system has the advantage that its construction is cheaper compared to an underground metro system. The construction time is relative limited and the physical barrier is small. The large elevation has a positive influence on the visual hindrance of an...