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Open research questions in Structural Behavior of Reinforced Concrete

63 unresolved questions extracted from the limitations and future-work sections of 601 Structural Behavior of Reinforced Concrete papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • The study only examines a limited number of fiber volume fractions and reinforcement ratios. The study does not examine the effects of other variables on flexural behavior.

    Comparative Experimental Study for Flexural Performance of Engineered Cementitious Reinforced Concrete Beams · 2026 · DOI

  • There is a need for improved empirical formulas for determining nominal flexural strength. The effects of fiber volume fraction, reinforcement ratio, and fiber type on flexural performance are not well understood.

    Comparative Experimental Study for Flexural Performance of Engineered Cementitious Reinforced Concrete Beams · 2026 · DOI

  • Corrosion of steel reinforcement in concrete structures. Limited durability of concrete structures in aggressive environmental conditions. High maintenance costs of concrete structures.

    Comparative Study of GFRP & Conventional Steel in Road Drainage Design · 2026 · DOI

  • Infrastructure deterioration and aging. Limited resilience and sustainability of current infrastructure maintenance practices. Need for more effective maintenance practices.

    Strengthening of RC beams using basalt fiber reinforced polymer with ECC · 2026 · DOI

  • The technical challenges include the difficulty of achieving uniform dispersion of carbon nanotubes in the concrete matrix. The domain challenges include the need for sustainable and durable reinforced concrete beams.

    Investigating the flexural performance of reinforced concrete beams using eco-friendly geotextile and wire mesh reinforcements · 2026 · DOI

  • Shear cracking in conventional RC structures. Brittle shear failure mode in conventional RC structures. Need for efficient reinforcement methods.

    Experimental Study on Shear Behavior of UHPC-NC Composite Members with Varying Thicknesses: Comparison with Conventional RC Beams · 2026 · DOI

  • The lack of proper waste management practices leads to the contamination of water bodies. The presence of heavy metals in the leachate and subsurface water samples poses a risk to human health. The need for remedial measures to avoid further contamination of the subsurface water.

    Investigating the Flexural Behavior of Concrete Beams with External Steel Plate Retrofitting: A Combined Experimental and Numerical Approach · 2026 · DOI

  • The need for strengthening techniques to restore column efficiency and improve structural behavior. The lack of a comprehensive review of traditional and modern techniques used in RC columns.

    Traditional and Modern Techniques for Strengthening RC Columns under Seismic Loads: A Review · 2026 · DOI

  • Further research is needed to explore the potential of Gaussian-based data augmentation in other structural engineering applications. The study suggests that future research should focus on developing more advanced machine learning models that can effectively capture the complex nonlinear relationships between the input parameters and the axial load-carrying capacity of UHPC-jacketed RC columns.

    Gaussian-based data augmentation for improved prediction of axial capacity of UHPC-jacketed rectangular RC columns · 2026 · DOI

  • Limited availability of experimental data for UHPC-jacketed RC columns. The need for a practical solution to mitigate data scarcity and support reliable design and assessment of UHPC-strengthened RC columns.

    Gaussian-based data augmentation for improved prediction of axial capacity of UHPC-jacketed rectangular RC columns · 2026 · DOI

  • Cracking due to thermal stresses, shrinkage, and external loading. Degradation of structural performance due to cracking. Limited understanding of the effects of fiber mesh reinforcement on RC slabs.

    Experimental and numerical study on the flexural capacity of fiber mesh fabric-reinforced RC slabs · 2026 · DOI

  • Further investigation of the effects of fiber mesh reinforcement on RC slabs. Development of more advanced numerical models for simulating the behavior of fiber-reinforced RC slabs. Investigation of the use of fiber mesh reinforcement for other types of concrete structures.

    Experimental and numerical study on the flexural capacity of fiber mesh fabric-reinforced RC slabs · 2026 · DOI

  • There is a need for a low computational demand numerical model to analyze the structural behavior of reinforced concrete elements subjected to axial tension. The existing models are either too complex or too simplified, and there is a need for a model that can capture the main stages of stiffness degradation, cracking evolution, and reinforcement yielding under axial tension.

    Simplified numerical model for reinforced concrete tension ties · 2026 · DOI

  • Combination of steel and GFRP rebars. Aging and long-term field studies. The fire resistance of GFRP reinforced concrete.

    Replacement of Steel Reinforcement with GFRP Rebars in Reinforced Concrete Structures Feasibility Assessment · 2026 · DOI

  • The lack of studies on the feasibility of using GFRP rebars in reinforced concrete structures. The need for a comparative analysis of the mechanical properties and durability of GFRP and steel rebars.

    Replacement of Steel Reinforcement with GFRP Rebars in Reinforced Concrete Structures Feasibility Assessment · 2026 · DOI

  • Investigating the use of GFRP in other construction applications. Developing new methods to improve the ductility of GFRP rebars.

    Comparative Study of GFRP & Conventional Steel in Road Drainage Design · 2026 · DOI

  • The lack of understanding of the torsional behavior of deep beams with cross-inclined stirrups. The need for a comprehensive study of the effect of stirrup type and spacing on the torsional capacity and ductility of deep beams.

    Torsional strength and deformation characteristics of HSC deep beams reinforced with cross-inclined stirrups · 2026 · DOI

  • The construction of arch bridges with spans exceeding 600 m. The development of new construction technologies for super-long-span arch bridges. The application of SRC arch bridges at suitable bridge sites.

    Key innovations in the construction of Tian’e Longtan Bridge · 2026 · DOI

  • The lack of advancements in construction technology for super-long-span arch bridges. The need to control time-dependent transient stresses during the construction process. The requirement for reducing the volume of encasing concrete to mitigate rib stresses.

    Key innovations in the construction of Tian’e Longtan Bridge · 2026 · DOI

  • The lack of reliable models and standardized methods to predict NSM systems' mechanical behavior. The difficulties encountered in field applications of NSM reinforcement systems.

    EXAMINING THE PROGRESS IN NEAR SURFACE MOUNT REINFORCEMENT METHODS WITH ANALYTICAL MODELS AND NEURAL NETWORKS · 2026 · DOI

  • The current methods for retrofitting RC beams are not sufficient to address the growing concern of infrastructure deterioration and aging. There is a need for more resilient and sustainable solutions for infrastructure maintenance.

    Strengthening of RC beams using basalt fiber reinforced polymer with ECC · 2026 · DOI

  • The study identifies a gap in the understanding of the effect of wall thickness and cold joints on deformation behavior. There is a need for further research on the use of polypropylene fibers in diaphragm walls.

    Experimental Investigation of Wall Thickness Effect on Cold Joints in a Scaled Diaphragm Wall Model Using Fiber-Reinforced Self-Compacting Concrete · 2026 · DOI

  • The study identifies a gap in the understanding of the influence of hooked-end steel fibres on the compressive and flexural behaviour of steel fibre-reinforced concrete. The study highlights the need for a calibrated 3D plasticity-fracture finite element model.

    Experimental and Numerical Investigation of Flexural Behaviour in Steel Fiber-Reinforced Concrete Notched Beam · 2026 · DOI

  • The lack of understanding of the effect of slenderness on the behavior of self-compacting RC slender columns strengthened with steel jackets. The need for a simple, cost-effective strengthening method for RC columns.

    Effect of Slenderness on the Behavior of Self-Compacting Reinforced Concrete Slender Columns Strengthened with Steel Jacket · 2026 · DOI

  • The authors would like to recommend the following: o Study the deference cross-section of slender columns such as circular. o Use the same technique to strengthen the entire length of the slender column instead of just 0.25 of its length. o Extend the scope of the research by using different types of loads, including increased eccentricities and cyclic loads.

    Effect of Slenderness on the Behavior of Self-Compacting Reinforced Concrete Slender Columns Strengthened with Steel Jacket · 2026 · DOI

Most-cited papers in Structural Behavior of Reinforced Concrete

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63 open questions have been extracted from the limitations and future-work passages of 601 Structural Behavior of Reinforced Concrete papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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