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bending test literature review - Coggle Diagram

- - - - Liu, S., Ma, X., Ma, Y., Chen, Z., Dong, Z., & Ma, P. (2023). Review on the design and application of concrete canvas reinforced with spacer fabric. Journal of Engineered Fibers and Fabrics, 18, 15589250231152591.
        4 qu
        liu-et-al-2023-review-on-the-design-and-application-of-concrete-canvas-reinforced-with-spacer-fabric.pdf
        
        fiber
        
        reason why warp is strong er than weft (warp length dirction or machine dirction)
        
        Warp-knitted technology
        
        flexural tests
        
        why three is better than four point bending test
        
        Ghorbani, V., Jeddi, A. A. A., Dabiryan, H., & Ramezanianpour, A. A. (2020).
        Investigation of the flexural behavior of self-consolidating mortars reinforced with net warp-knitted spacer fabrics. Construction and Building Materials, 232, 117270.
        1 qu
        1-s2.0-S0950061819327229-main,pdf
        
        Stress Concentration at Midpoint
        
        Stress Concentration at Midpoint
        
        Smaller Specimens
        
        Focus on Initial Crack Behavior
        
        . Stiffness, strength, and strain
        capacity of the composite materials were improved using the spacer fabrics
        
        warp-knitted fabrics
        
        tests
        
        tensile tests
        
        3-point bending tests
        
        1 more item...
        
        The load-deformation curve of CC contains elastic stage
        and the multiple crack stage
        
        application
        
        tent
        
        slope protection
        
        ditch lining
      - bending test #
        
        Zhang, F., Chen, H., Li, X., Li, H., Lv, T., Zhang, W., & Yang, Y. (2017).
        Experimental study of the mechanical behavior of FRP-reinforced concrete canvas panels. Composite Structures, 176, 608-616.
        2 qu
        1-s2.0-S026382231631217X-main.pdf
        
        four-point bending test
        
        10 days curing
        
        flexrual stiffness
        
        excel Fangyuan Zhang 2017
        
        2.6 GPa
        
        15 mm thick 270 span
        
        PET
        
        3D spacer fabric
        
        warp knitted
        
        warp=machine direction
    - - 3D fiber reinforcement has a significant effect on the bending resistance as aging, but not in all weaving directions.
        
        It can be said that the flexural strength without fiber reinforcement is almost the same as the reinforced material for transversal weavings. #
    - - 4x4x4cm. Modulus and strength changes as aging #
    - - : it was concluded that the evaluated Young's modulus of the 3D fiber reinforcement is significantly weaker due to the dense weaving. The fiber reinforcement strengthens the CC material for some measurements and also weakens it for some measurements.
    - - literature
        
        about exprimental tests
        
        about properties
      - 4 point flexural test
        
        350x200x13mm
        
        initial strength increase as aging only in longitudinal direction
        
        flexural modulus is very close to E=10GPa
        
        this is more reliable than using compressive test #
      - compressive test
        
        300x300x13mm
        
        hydration with weight to prevent wavy
        otherwise the movement can be larger lead to false data
        
        upper and lower can be compressed more easily
        
        E=500MPa
- - - - Introduce GCLs and TRC which is the preceding products before GCCMs
    - - Providing 3 point bending test with stress and deflection screen shot and see
        sample was self-manufactured
        
        250x250x8.1 mm span 215mm
        
        28 day modulus is E=9000MPa
      - Mentioned two different directions curing affect tensile strength and tensile modulus
        
        warp is length direction
  - - - Han 2014-2016: 3D spacer #
      - ASTM 8173-18
        
        Standard Guide for Site Preparation, Layout, Installation, and Hydration of Geosynthetic Cementitious Composite Mats
      - FEA model
        
        stress-strain relation
        
        cement
        
        fibric
        
        bond-slip models
  - - - 3D spacer fabric
        
        geometric pattern
        
        affect mechanical strength
        
        volume stability
        
        warp weft spacer yarn
        
        PET
      - Han, F., Chen, H., Jiang, K., Zhang, W., Lv, T., & Yang, Y. (2014).
        Influences of geometric patterns of 3D spacer fabric on tensile behavior of concrete canvas. Construction and Building Materials, 65, 620-629.
        1 qu
        1-s2.0-S0950061814005248-main.pdf
        
        3D spacer photos
        
        Five 3D spacer fabrics of warp-knitted construction
    - - on self-made ref_CC
- - - - three types of CC
      - a table one specify the what all type's basic requirements are