The XO, XC, XD and XS groups are based on the reinforcement degradation due to corrosion, the XF and XA groups - on the concrete degradation itself. The main groups are subdivided further on the basis of the moisture which the concrete with the (possible) existing reinforcement is …

xc1 Dry or permanently wet Reinforced and prestressed concrete surfaces inside enclosed structures except voided superstructures and areas of structures with high humidity.

Various codes such as Indian Standard, American Concrete Institute, and European Standard have set similar exposure categories for reinforced concrete structures. The exposure conditions govern durability requirements, materials selection and proportion, design, and construction of …

Mar 28, 2014 · To ensure that the steel reaches yield before the concrete crushes the depth to the neutral axis should be limited. 1. Analyze whole frame and include effective of geometric imperfections. 2. From analysis add the effect of geometric imperfections to individual members, e …

xc1 Dry or permanently wet Reinforced and prestressed concrete surfaces inside enclosed structures except voided superstructures and areas of structures with high humidity.

The values of minimum concrete cover conform to the standard EVS-13369 "Common rules for precast concrete products“ Appendix A and the descriptions of exposure classes conform to the standard EVS-EN 206-1 “Concrete. Part 1: Specification, performance, production and conformity”. Class indic. X0 XC1 XC2 XC3 XC4 Examples about the application

This is determined by the end-use, e.g. concrete in the interior of a building will have a different exposure rating to concrete used in the foundations. The letter “X” denotes the exposure class followed by additional letters and numbers to identify a specific exposure (see Table 3). Other key factors for ordering concrete continue to

CONCRETE CLASS XC1. Environment: Dry or permanently under water. Example: Concrete inside buildings with low air humidity. Concrete immersed in water. Attention: Concrete XC1 is not suitable for outdoor application! CONCRETE CLASS XC2. Environment: Under water, rarely dry. Example: Concrete surfaces subject to continuous contact with water. In ...

Calculation of nominal concrete cover according to Eurocode 2.

Jan 1, 1992 · Calculation of nominal concrete cover and minimum concrete class for durability (reinforcement bars and prestressing tendons) according to Eurocode 2 (EN1992-1-1) for durability and adequate bond