Experimental investigation and numerical modeling of carbonation process in reinforced concrete structures: Part I: Theoretical formulation

• Published in: Cement and concrete research Vol. 34; no. 4; pp. 571 - 579
• Main Authors: Saetta, Anna V., Vitaliani, Renato V.
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Ltd 01.04.2004; Elsevier Science
• Subjects: Applied sciences; Building failures (cracks, physical changes, etc.); Building structure; Buildings. Public works; Carbonation; Computation methods. Tables. Charts; Concretes. Mortars. Grouts; Construction (buildings and works); Corrosion; Degradation; Durability; Durability. Pathology. Repairing. Maintenance; Exact sciences and technology; Materials; Modeling; Reinforced concrete; Reinforced concrete structure; Structural analysis. Stresses; Degradation; Carbonation; Durability; Corrosion; Modeling; Sensitivity analysis; Hydration; Theoretical study; Concrete mix design; Diffusivity; Reinforced concrete; Formulation; Numerical simulation; Construction structure; Mathematical model; Civil engineering
• ISSN: 0008-8846; 1873-3948
• DOI: 10.1016/j.cemconres.2003.09.009

In this work, the mathematical-numerical model of carbonation process in reinforced concrete (RC) structures, which has been developed by the authors, is applied to different cases of study to take into account the probabilistic nature of durability assessment procedure even if within the framework of a rough and ready approach. In particular, the aim of this Part I of the work is to study how the variability of the parameters defining the differential equations in the model influence the assessment of the corrosion initiation time of RC structure. Comparison with experimental results and numerical simulations are undertaken in Part II of this work.