Research Topics on Long-Term Behavior of Textile-Reinforced Mortars
Textile-reinforced mortars are increasingly used to strengthen aging masonry structures, yet their long-term mechanical response under sustained loads remains underexplored. While durability studies exist, creep behavior still holds unanswered questions that affect their use in real reinforcement scenarios. This research focuses on how TRMs deform, stabilize, or fail when exposed to continuous loading over extended periods, using controlled single-lap shear experiments to reveal their true long-term potential.
Significance of Creep Behavior in TRM-Reinforced Masonry
Understanding creep in TRMs is essential because long-term deformation can reduce load transfer efficiency and compromise structural safety. When old masonry interacts with modern composite overlays, time-dependent strain becomes a critical performance factor. This topic examines why creep contributes to serviceability concerns, how it relates to sustained load levels, and why predicting it accurately is vital for the reliability of rehabilitation interventions.
Influence of Curing Age on Mechanical Performance
Curing time deeply affects the strength development of both mortar and textile–mortar composites. Longer curing periods often lead to higher stiffness and improved bonding, which influence overall creep resistance. This section explores how TRMs evolve at different curing stages, linking microstructural maturity with mechanical stability, and explaining why curing optimization strategies can enhance long-term performance.
Load-Level Dependency of Creep Progression
This topic analyzes how different percentages of sustained loads—ranging from 30 to 70 percent of initial capacity—shape the rate and severity of creep deformation. Higher loads accelerate creep progression and increase the risk of premature failure, while moderate loads allow specimens to maintain stability over longer durations. The paragraph highlights load thresholds, failure tendencies, and the practical implications for designing safe reinforcement schemes.
Material Characterization and Its Role in Predicting Long-Term Behavior
The study employs compressive, flexural, elastic modulus, and tensile tests to assess the mechanical properties of mortars and textiles. This topic explains why such characterization is crucial for interpreting creep results and building predictive models. It also emphasizes the relationship between material stiffness, fiber strength, bonding quality, and long-term deformation under sustained loads.
Practical Implications for Structural Rehabilitation Using TRMs
The findings offer guidance for engineers who design reinforcement systems for heritage and modern masonry structures. Insights on curing duration, load application limits, and material selection help establish safer and more durable TRM applications. This topic highlights how the research contributes to better decision-making, improved reinforcement strategies, and enhanced structural resilience through optimized TRM design.
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