Bond Analysis of Titanium Rods Embedded in Masonry
Fitsum Haile1, Marco Corradi2, Enea Mustafaraj3
1Department of Mechanical and Construction Engineering, Wynne Jones Building, Northumbria University, Newcastle upon Tyne NE1 8ST, UK.
Materials (Basel, Switzerland)
|April 13, 2024
Summary
Near-surface mounted (NSM) titanium rods enhance masonry strength. Threaded rods with optimized mortar and bond length provide superior bond performance and pull-out strength in masonry structures.
Area of Science:
- Civil Engineering
- Materials Science
- Structural Engineering
Background:
- Masonry structures require strengthening against flexural and shear forces.
- Advanced materials offer novel solutions for structural reinforcement.
- Near-surface mounted (NSM) techniques, also known as Bed Joint Reinforcement, are increasingly adopted.
Purpose of the Study:
- To investigate the bond mechanics of NSM titanium rods in masonry.
- To evaluate the influence of rod type, bond length, and mortar on bond performance.
- To identify optimal parameters for effective NSM reinforcement of masonry.
Main Methods:
- Utilized NSM titanium rods (smooth and threaded) for masonry strengthening.
- Varied bond length and tested different mortar types for groove filling.
- Conducted pull-out tests to assess bond strength and performance.
Main Results:
- Threaded NSM titanium rods demonstrated superior performance compared to smooth rods.
- Pull-out strength was significantly influenced by the type of mortar used.
- Optimizing bond length and mortar selection substantially improved bond performance.
Conclusions:
- NSM titanium rods are a promising technique for enhancing masonry strength.
- Threaded rods offer better bond performance in NSM applications.
- Careful selection of mortar and bond length is crucial for maximizing pull-out strength and overall effectiveness.
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