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Title	Experimental Investigation And Numerical Modeling Of Carbonation Process In Reinforced Concrete Structures: Part II. Practical Applications
Accession No	01001411
Authors	Saetta, Anna V ; Vitaliani, Renato V
Journal Title	Cement and Concrete Research Vol. 35 No. 5
Corp. Authors / Publisher	Elsevier
Publication Date	20050500
Description	pp 958-967; Figures(8); Photos(5); References(9); Tables(6)
Media Type	Print
Languages	English
Abstract	This article reports on the practical applications of a mathematical-numerical method developed by the authors (1993, 1995) to predict the corrosion initiation time of reinforced concrete structures due to carbonation process. Their goal is to develop and test a practical method for determining the durability characteristics of existing buildings liable to carbonation, as well as for estimating the corrosion initiation time of a building at the design stage. The authors report on two industrial sheds with different ages and located in different areas that were built by using prefabricated elements produced from the same supplier, who used the same mix for both the prefabricated beams with untensioned reinforcement and the columns. In the shed used for stabling animals, the average carbonation depth was 11.2 mm after 16 years of service, and the standard deviation, determined from average readings from all cores, is 1.75. In the tool shed, it was 7.1 mm after 23 years, and the standard deviation is 1.01. In both sheds, the surface of the cores had a smooth and homogenous appearance, with no clumps of gravel, suggesting that the elements analyzed had been correctly prepared using concrete that was not too wet, and correctly vibrating the still plastic mixture. The authors report on their numerical analyses of these two structures. In addition, a case of carbonation-induced failure in a prestressed reinforced concrete (RC) beam is presented.
TRT Terms	Carbonation ; Corrosion ; Durability ; Mathematical models ; Numerical analysis ; Reinforced concrete
Other Terms	Corrosion initiation time
Subject Areas	H32 CEMENT AND CONCRETE; I32 Concrete
Availability	Find a library where document is available Order Document: http://worldcat.org/issn/00088846
TRIS Files	HRIS
Database	TRIS Online

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