Evaluation of the influence of the use of auxetic geometry mesh in concrete elements subjected to compression
Evaluación de la influencia del uso de malla con geometría auxética en elementos de concreto sometidos a compresión
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This work evaluates the influence of auxetic geometry in concrete elements subjected to compression. A total of 24 specimens were tested, 16 specimens reinforced with auxetic geometry 3D printed with polylactic acid (PLA), varying cell height and thickness. The mechanical properties obtained in these tests were compared with the results of eight (8) specimens without any reinforcement. The use of the auxetic mesh as concrete reinforcement has a significant impact on the confinement of the concrete, giving the specimens the capacity to incursion in the inelastic range, unlike that shown by the specimens without reinforcement that do not present any incursion, the auxetic prototypes showed better properties of the concrete subjected to axial load with respect to the control prototypes. Additionally, by means of the CES selector software Ansys Granta, which gathers information in a library of data on materials and allows comparisons and analysis, the amount of CO2 emissions within the life cycle of PLA was determined, it was found in this analysis that PLA presents high carbon emissions due to the considerable energy consumption required in its production. However, it is important to consider other key aspects of its life cycle, such as manufacturing, transportation and final disposal of the material, in which it shows a relatively low carbon footprint.
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