Modelling of composite concrete block pavement systems applying a cohesive zone model

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    This paper presents a numerical analysis of the fracture behaviour of the cement bound base material in composite concrete block pavement systems, using a cohesive zone model. The functionality of the proposed model is tested on experimental and numerical investigations of beam bending tests. The pavement is modelled as a simple slab on grade structure and parameters influencing the response, such as analysis technique, geometry and material parameters are studied. Moreover, the analysis is extended to a real scale example, modelling the pavement as a three-layered structure. It is found that the cohesive model is suitable for simulation of crack propagation in cement bound materials subjected to monotonic loading. The methodology implemented gives a new understanding of the mechanical behaviour of cement bound materials which can be used in further refinements of mechanical models for composite block pavements. It is envisaged that the methodology implemented in this study can be extended and thereby contribute to the ongoing development of rational failure criteria that can replace the empirical formulas currently used in pavement engineering.
    Original languageEnglish
    Publication date2015
    Number of pages14
    Publication statusPublished - 2015
    Event11th International Conference on Concrete Block Pavement - Dresden, Germany
    Duration: 8 Sept 201511 Sept 2015
    Conference number: 11


    Conference11th International Conference on Concrete Block Pavement


    • Cement bound material fracture
    • Cohesive zone model
    • Composite block pavements
    • Pavement analysis
    • Finite element modelling


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