A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modeling Strains of Concrete Induced by Delayed Ettringite Formation in Variable Hygro-Thermal Conditions
Delayed Ettringite Formation is a type of chemical degradation of moist concrete exposed at early ages to heating up to temperature of about 70-80°C. The material deterioration is caused by expanding phases produced by the ettringite reaction. A phenomenological, rate-type model of the DEF strains, considering effect of the temperature and duration of heat-treatment of concrete at early ages, and the evolution of ambient temperature and relative humidity, on the development of strains is introduced into the mathematical model of heat and moisture transport in deformable porous media. The model equations are solved numerically by means of finite element, finite difference and Newton-Raphson methods. The computer code was developed and used for the model validation by comparing its’ results with the published experimental data.
Modeling Strains of Concrete Induced by Delayed Ettringite Formation in Variable Hygro-Thermal Conditions
Delayed Ettringite Formation is a type of chemical degradation of moist concrete exposed at early ages to heating up to temperature of about 70-80°C. The material deterioration is caused by expanding phases produced by the ettringite reaction. A phenomenological, rate-type model of the DEF strains, considering effect of the temperature and duration of heat-treatment of concrete at early ages, and the evolution of ambient temperature and relative humidity, on the development of strains is introduced into the mathematical model of heat and moisture transport in deformable porous media. The model equations are solved numerically by means of finite element, finite difference and Newton-Raphson methods. The computer code was developed and used for the model validation by comparing its’ results with the published experimental data.
Modeling Strains of Concrete Induced by Delayed Ettringite Formation in Variable Hygro-Thermal Conditions
Januszkiewicz, M. (author) / Pesavento, F. (author) / Grymin, W. (author) / Gawin, D. (author)
10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures ; 2015 ; Vienna, Austria
CONCREEP 10 ; 593-602
2015-09-18
Conference paper
Electronic Resource
English
Delayed Ettringite Formation in Concrete
| British Library Conference Proceedings | 1999
Concrete Damage Induced by Delayed Ettringite Formation
| British Library Conference Proceedings | 2000
| Online Contents | 2001
| Tema Archive | 2001
| British Library Online Contents | 2001