Ej. Garboczi, STRESS, DISPLACEMENT, AND EXPANSIVE CRACKING AROUND A SINGLE SPHERICAL AGGREGATE UNDER DIFFERENT EXPANSIVE CONDITIONS, Cement and concrete research, 27(4), 1997, pp. 495-500
Citations number
13
Categorie Soggetti
Construcion & Building Technology","Material Science
There seems to have been some confusion in recent years regarding the
stress and displacements induced in a concrete material when either th
e matrix, the aggregate, or a shell around the aggregate is expansive.
The case of a single spherical aggregate, surrounded by a single shel
l of arbitrary thickness, all of which are embedded in a matrix, can b
e solved exactly for any combination of elastic moduli and expansive s
trains. Solutions of this problem under various choices of parameters
are used to illustrate the features of stress, displacement, and expan
sive cracking that are possible. These solutions can then be used to h
elp better understand the features seen under the microscope in concre
tes that have been damaged by different expansive forces. (C) 1997 Els
evier Science Ltd