Abstract:

This experimental study on concrete samples with the same geometry found that the increase in the sample size between the sample size and the nominal pressure resistance and the reduction in the nominal resistance. This event is called the size effect in the breakdown mechanism of concrete and concrete. The breakdown loads in cubic concrete samples in different pressure resistance produced under the axinal pressure load in laboratory conditions have been experimentally obtained. The results are shown to draw the size effect curves and calculate the relevant size effect parameters. In different concrete classes (C20, C25, C30, C35, C40) a total of 45 concrete test samples were used with cubic samples in five separate groups. In the study, each class of concrete is literally literally (A, B, C, D, E) respectively. Basant’s measurement effect method Linear I, Linear II and Non-linear and Carpinteri’s MFSL (Multifractal Scaling Law) analysis were applied to the results achieved and measurement effect links were obtained. The results obtained from experimental data were very well in accordance with the relevant size effect equations. The correlation of concrete resistance with the theory of size effect is fully established. The presence of measurement effect is clearly seen by the results obtained from experiments with cubes with different resistance samples.

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