Question

Bleeding of concrete leads to which of the following?
1. Drying up of the concrete surface.
2. Formation of pores inside.
3. Segregation of aggregate.
4. Decrease in strength.
Select the correct answer using the codes given below:

• A. 1 only
• B. 1 and 2
• C. 1 and 3
• D. 2 and 4

Answer 1

The correct option is D 2 and 4

Bleeding or water gain, is a particular form of segregation in which some of the water from the concrete comes out to the surface of the concrete, having the lowest specific gravity among all the ingredients of concrete.
It causes
(i) higher shrinkage cracks at top surface
(ii) water voids and reduction of bond between the aggregates and cement paste