Basics of Concrete Science by Professor L. Dvorkin, Professor O. Dvorkin - HTML preview

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CHAPTER 5

DEFORMATIONS OF

CONCRETE

L. Dvorkin and O.Dvorkin

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Deformations of concrete arise up at hardening, exploitation and test of

concrete.

Two kinds of deformations of concrete are:

1. Deformations due to applied external loads (power deformations);

2. Deformations due to volume changes under influencing of changes in

temperature and moisture content (own deformations).

5.1. Concrete deformations at short-term load

Concrete Performance in constructions is determined by elastic and plastic

deformations.

Complete deformation of concrete at a definite age of hardening (ετ) is

calculated by the equation:

ε = ε + ε + ε

(5.1)