Intrinsically anomalous roughness of admissible crack traces in concrete.
We study the roughness of postmortem cracks in concrete plates of different size. We find that the set of admissible crack paths exhibits an intrinsically anomalous roughness; nevertheless, any individual crack trace in concrete is essentially self-affine. We also find that both the local and the global amplitudes of crack traces are distributed according to a log-logistic distribution characterized by the same scaling exponent, whereas the mean-square width distribution is best fitted by the Pearson distribution, while the log-normal distribution also provides quite good adjustments and cannot be clearly rejected.
Sección de Posgrado e Investigación, ESIME, Instituto Politécnico Nacional, México and Grupo "Mecánica Fractal," México 07738.
Alexander S
AS
Balankin
Orlando
O
Susarrey
Rafael García
RG
Paredes
Leobardo
L
Morales
Didier
D
Samayoa
José Alfredo
JA
López