The role of damage induced by an applied load on service life of reinforced concrete structures

Author(s): F. H. Wittmann, Y. V. Zaytsev, T. J. Zhao
Paper category: Proceedings
Book title: Proceedings of the Seventh International Conference on Concrete under Severe Conditions – Environment and Loading
Editor(s): Z.J. Li, W. Sun, C.W. Miao, K.Sakai, O.E. Gjørv, N.Banthia
ISBN: 978-2-35158-124-7
e-ISBN: 978-2-35158-134-6
Publisher: RILEM Publications SARL
Publication year: 2013
Pages: 616-626
Total Pages: 11
Language : English

Abstract: The composite structure of concrete is vulnerable under the influence of an applied tensile or compressive load. By means of micro-mechanics micro-crack and crack formation in concrete is simulated. Formation of new pathways for the transport of gas and aqueous salt solutions are created under the influence of an applied mechanical load. Cracks may start at pores in the hardened cement paste and also from the interface between aggregates and hardened cement paste. As a consequence the rate of carbonation and the rate of penetration of aqueous solutions containing aggressive dissolved chemical compounds such as chloride or sulphate are accelerated. The simulated crack formation helps to understand the influence of an applied load on the service life of reinforced concrete structures in severe environment. Knowing details of crack formation in the composite structure of concrete allows us to optimize the material with respect to durability and service life.

Online publication : 2013
Publication type : full_text
Public price (Euros) : 0.00