STRENGTH CRITERIA FOR CONCRETE WITH CORROSION DAMAGE IN COMPLEX STRESS STATE

Abstract

Introducing the hypothesis of colmatation conversion of concrete structure with corro- sion damage with stabilization at any ultimate depth of damage, the authors have built a strength criterion of the concrete under complex stress state. In the coordinate system of the principal normal stresses, this criterion describes the surface of the ellipsoid, the characteristic dimensions of which are primarily dependent on the kinetics of corrosion processes in time and depth of neutralization. The presented criterion can be used for solution of problems of the survivability of reinforced concrete structural systems under conditions of simultaneous mani- festation of power and environmental impacts.

Keywords

• коррозионные повреждения бетона
• критерий прочности коррозионно повреждаемого бетона
• изменение предела прочности в агрессивных сре- дах
• глубина нейтрализации коррозионно поврежденного бетона