Model of the Mechanical Behavior of Cementitious Matrices Reinforced with Nanomaterials

Figure 4

Individual response curves, along with sample mean response curves (in solid black) and 2-envelopes (in dashed dotted black), for uniaxial plane-stress loading of discrete specimens ( MHD) reinforced with CNTs. Stresses and moduli of elasticity are divided by the observed volume density / of each specimen (given in parenthesis in the legend, along with the actual CNT content per solid volume of specimen). (A) Stress in direction of loading. (B) Secant modulus of elasticity. (C) Stress across loading (zero throughout). (D) Secant Poisson ratio (apparent incompressibility observed at limit point in compression). The two groups differ with respect to the targeted CNT content, which is (a) 0.1% per volume of paste and (b) 1% per volume of paste.

(a)

(b)