Probabilistic analysis of Mode II fracture of concrete with crushed granite stone fine aggregate replacing sand

This paper reports the results of a probabilistic analysis of Mode II fracture energy of concrete with different percentage replacements of natural river sand with crushed stone fine aggregate (replacement percentage varying from 0 to 100, in the increments of 25%). The experimentally observed values of mean, minimum and maximum GIIF are compared with their respective values obtained from probabilistic analysis, and the results are found to be in good agreement. From the results of K–S tests performed for different (a/w) ratios and percentage replacements considered it is found that in some cases GIIF follows lognormal distribution while in the other cases, this distribution has the smallest value for K–S statistic compared to normal and Weibull distributions. Using this information an equation is proposed for estimation of characteristic Mode II fracture energy.

► Probabilistic analysis of Mode II fracture resistance of sustainable concrete carried out. ► Results of probabilistic analyses are in satisfactory agreement with experimental results. ► A characteristic fracture energy equation is proposed for the first time.