Question

6: A concrete mix is said to be self-compacting concrete, if
it has

filling ability
Passing ability
Segregation resistance
all of the above
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Answer 1

A concrete mix is said to be self-compacting concrete, if  it has all of the given options

• A self compacting concrete predominantly possesses three essential characteristics namely the passing ability, the flowing ability and the Resistance to segregation.
• A passing capability obtains the ability without congested reinforcement to pass through the separation of the components or the blocking.
• Flowing capability accurately represents the unique capability to completely saturate all key areas and operative corners of the formwork it is put in.  
• To maintain a homogeneous material, segregation resistance remains the ability to support the coarse components of the mix in suspension.

Answer 2

Explanation:

Among the four options given in question statement, the correct option is the last one.

A self compacting concrete is one that has the ability to fill in itself, ability to pass and has segregration resistance.

This type of concrete can fit in to all corners of a mold, can travel into all sorts of gaps without the need of extrenal forces and tools. Also this concetre has the ability to remain stable without segregation