Short-Time Creep of Concrete

Abstract:

The consideration is given to a specific component of the creep of concrete which becomes apparent within one day from the moment of load application, the so called “short-term creep”. Since the entire creep of concrete is conditioned by its water content, the short-time creep must be assigned to the most mobile water – capillary water. As far as the capillary water behavior is determined by the capillary forces acting in it, the short-term creep of concrete is considered and described in the present work as expression of capillary forces. Such description is based on a modified capillary theory of concrete shrinkage: creep is interpreted as forced shrinkage arising due to the fact that application of load leads to disturbance of hygrometric equilibrium of concrete and environment. In view of the mentioned creep interpretation as the forced shrinkage the isotropic loading of the body is considered. The purpose of this work is to determine the degree in which the capillary forces are source of the short-term creep of concrete.

• Periodical: Applied Mechanics and Materials (Volumes 725-726)
• Pages: 493-498
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.725-726.493
• Online since: January 2015
• Authors: Vyacheslav Kharlab*, Alexander Maslennikov
• Keywords: Capillary Forces, Concrete, Short-Term Creep, Shrinkage

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