Models and measurements with implications to durability

Author(s): Hamlin M. Jennings
Paper category: conference
Book title: Microstructural-related Durability of Cementitious Composites
Editor(s): Guang Ye, K. van Breugel, Wei Sun and Changwen Miao
Print ISBN: 978-2-35158-129-2
e-ISBN: 978-2-35158-123-0
Publisher: RILEM Publications SARL
Publication year: 2012
Pages: 98
Total Pages: 1
Language: English

Abstract: Durability, which is a poorly defined function of several properties, is complex and cement/concrete is a complex material. Since the mechanisms that control most properties act at the atomic and molecular scales any mechanistically based model must, by necessity, be an assemblage of many separate models. Thus a multi scale approach is required. While models at the finest scales are emerging and models at the micron scales are mature the meso scale represents a next challenge. Both solid and pore structure fall into this meso scale and both modeling and experiment must define structure in terms that can be related to properties and also document deterioration of properties. Two examples are outlined: 1) the use of models to interpret the pore structure via sorption isotherms and 2) a strategy for the use of models to discover the mechanisms that alter kinetics of hydration and structure of products in the presence of sulfate.

Online publication: 2012-07-05
Publication Type: full_text
Public price (Euros): 0.00