forte® ERX Sensor Rebar Monolithic Strain Sensor

Sensor Advantages

• Strain & crack measurement along the entire length of the sensor, optionally also temperature changes
• Excellent integration with the monitored structure (ribbed external surface)
• Monolithic section with no intermediate layers providing accurate readouts
• Sharp and precise view of any local phenomena, especially cracks in concrete
• Easy installation – lightweight sensor, ready to use when unrolled from the drum
• Resistant to environmental conditions, including electromagnetic fields and lightning strikes

Applications

• Structural health monitoring of engineering structures
• Geotechnical and hydrotechnical engineering (e.g. Slurry and retaining walls, piles, concrete columns, dams, embankments)
• Line structures: roads and bridges, tunnels, railway lines, pipelines and others

Description

SRX Sensor Rebar enables accurate strain and precise crack measurements over its entire length. It takes the form of composite rebar of any diameter (standard Ø 5 mm). It is designed for direct embedding into the newly-designed structural members (concrete or soil) or to be installed within existing structures (e.g. inside grooves in concrete or on the surface of pipelines). Thanks to its high stiffness and tensile strength, SRX Sensor Rebar could be used as a bar with a double function: measuring and reinforcing. Resistance to mechanical loads and environmental conditions makes SRX Sensor Rebar ideal for in-situ applications within construction sites or existing infrastructure.

Application of DFOS strain Sensors for the structural health monitoring of real engineering structures allows for strain measurements over the entire length with a spatial resolution starting from 5 mm. The key thing is to use sensors that are accurate and reliable. SRX Sensor Rebar provides new opportunities in the quantitative and qualitative assessment of strains and cracks in concrete. It allows for the precise detecting of the cracks locations and estimating their actual width during changing environmental conditions over the long term.

Specifications