TY - JOUR
T1 - Bridging the gap between structural levels in concrete technology – Principles of geometric averaging
AU - Li, Kai
AU - Stroeven, Piet
PY - 2020
Y1 - 2020
N2 - Research on cementitious materials can provide geometric data on structural topics of interest. Such structural data should be subjected to a process called “geometric averaging” to be coupled on the engineering level with properties like strength, stiffness or permeability. The prime purpose of this work is to demonstrate that the mathematics underlying the process of going from the materials structure to engineering properties is governed by simple stereology-based constants. Particularly, Cauchy concepts are referred to for expressions relating the length of a curved line in a plane or in space, alternatively of a curved surface in space, to extensions of total projections on lines, respectively planes, in random directions. The two parameters due to Cauchy, i.e., 2/π and 1/2 will be demonstrated dominantly governing the geometric averaging process. The stereological methodology to assess the geometric material parameters and the engineering application of the outcomes are also briefly touched upon in the paper.
AB - Research on cementitious materials can provide geometric data on structural topics of interest. Such structural data should be subjected to a process called “geometric averaging” to be coupled on the engineering level with properties like strength, stiffness or permeability. The prime purpose of this work is to demonstrate that the mathematics underlying the process of going from the materials structure to engineering properties is governed by simple stereology-based constants. Particularly, Cauchy concepts are referred to for expressions relating the length of a curved line in a plane or in space, alternatively of a curved surface in space, to extensions of total projections on lines, respectively planes, in random directions. The two parameters due to Cauchy, i.e., 2/π and 1/2 will be demonstrated dominantly governing the geometric averaging process. The stereological methodology to assess the geometric material parameters and the engineering application of the outcomes are also briefly touched upon in the paper.
KW - Cauchy concepts
KW - Cementitious materials
KW - Cracks
KW - Fibers
KW - Geometric averaging
KW - Pores
UR - http://www.scopus.com/inward/record.url?scp=85081683537&partnerID=8YFLogxK
U2 - 10.1016/j.mtcomm.2020.101061
DO - 10.1016/j.mtcomm.2020.101061
M3 - Article
AN - SCOPUS:85081683537
SN - 2352-4928
VL - 24
JO - Materials Today Communications
JF - Materials Today Communications
M1 - 101061
ER -