Meso-scale analysis of mortar deteriorated by acid

Y. Oiwa, Y. Sato, T. Miura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Concrete would be deteriorated by various factors in severe environment. Chemical erosion of concrete in acidity environment is one of important deterioration mechanism. It is not clarified, however, how chemical characteristic change affects mechanical characteristics. Meanwhile, a meso-scale approach in which both aggregate and mortar can be modeled is on the verge of becoming possible to apply to such durability problems. In this paper, the relationships between chemical characteristic change (amount of CH and CSH) and mechanical characteristic change are examined experimentally and then the mechanical behavior is simulated by Rigid Body Spring Method which is a typical meso-scale analysis. In particular, meso-scale constitutive laws are obtained from the bending tests of deteriorated mortar specimens after immersion test. Finally the applicability and availability of the analysis with the developed constitutive laws are discussed based on comparison with experimental.

Original languageEnglish
Title of host publicationConcrete under Severe Conditions
Subtitle of host publicationEnvironment and Loading - Proceedings of the 6th International Conference on Concrete under Severe Conditions, CONSEC'10
Pages569-575
Number of pages7
Publication statusPublished - 2010 Dec 1
Externally publishedYes
Event6th International Conference on Concrete under Severe Conditions-Environment and Loading, CONSEC'10 - Merida, Yucatan, Mexico
Duration: 2010 Jun 72010 Jun 9

Publication series

NameConcrete under Severe Conditions: Environment and Loading - Proceedings of the 6th International Conference on Concrete under Severe Conditions, CONSEC'10
Volume1

Other

Other6th International Conference on Concrete under Severe Conditions-Environment and Loading, CONSEC'10
CountryMexico
CityMerida, Yucatan
Period10/6/710/6/9

ASJC Scopus subject areas

  • Building and Construction

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  • Cite this

    Oiwa, Y., Sato, Y., & Miura, T. (2010). Meso-scale analysis of mortar deteriorated by acid. In Concrete under Severe Conditions: Environment and Loading - Proceedings of the 6th International Conference on Concrete under Severe Conditions, CONSEC'10 (pp. 569-575). (Concrete under Severe Conditions: Environment and Loading - Proceedings of the 6th International Conference on Concrete under Severe Conditions, CONSEC'10; Vol. 1).