In this paper a uniform interpretation of the rate effects of fracture of the concrete
and mortar is given on the basis of a structural-temporal approach based on the notion of
incubation time. It is shown that temporal dependences of both materials are well calculated
using the incubation time criterion. Different relation of ultimate stresses for concrete and
mortar in quasi static and high rate loading conditions is observed.
Keywords: dynamic strength; incubation time of fracture; impact stress; strain rate; concrete; mortar
full paper (pdf, 1120 Kb)