How we prevent the corrosion of steel ? Enlist the types of shoring?
Prevention of corrosion:-The steel is most llable to corrosion and hence, the study of steel corrosion is of paramount importance. To minimize the chances of development of corrosion of steel in concrete, the following preventive measures may be taken:
1. Avoiding heavily congested reinforcement especially at the intersection of beams and columns.
2. Avoiding the steel to come into contact with bricks, soil, wood and other porous non- alkaline materials,
3. Avolding the use of materials which accelerate the process of corrosion i.e. aggregates with high self contents, water containing salts, etc.,
4. Cleaning the reinforcement with wire-brush to remove the rust scales before placing of concrete,
5. Maintaining a high degree of workmanship,
6. Proper structural design with due provision of cover,
7. Providing cathodic protection to the reinforcement by some suitable method,
8. Providing surface coatings with paints, tars, asphalts, etc.,
9. Use of a high quality and impermeable concrete,
10. Using stone pebbles in place of badly made cover blocks,
11. Using the correct water-cement ratio, etc.
Prevent Rust on Building Iron Rods: Effective Tips and Tricks
Types of shoring: Depending upon their supporting characteristics, the shores are classified into the following three categories:
(i) Raking or inclined shores.
(ii) Flying or horizontal shores.
(iii) Dead or vertical shores.
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