Optimisation of the Mechanical Properties and Mix Proportion of Multiscale-Fibre-Reinforced Engineered Cementitious Composites.

However, after the doping amounts of CWs and CNTs exceed 2% and 0.15%, respectively, CW agglomerates in the matrix and produces an aggregation effect, which negatively affects the strength of the cementitious material and causes the mechanical properties of the ECC specimens to show a decreasing trend.

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When p ≤ 0.05, the regression equation is well fitted and reaches a significant level; when p < 0.01, the regression equation fits very well and reaches a highly significant level [ 44 , 45 ].

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