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Which of the following are the desirable properties for efficient functioning in design for movement joint of water tank? 1. The joint should accommodate repeated movement of the structure without loss of water-tightness 2. The design should provide for exclusion of grit and debris which would prevent the closing of the joint 3. The material used in the construction of movement joints should not slump unduly in hot weather or become brittle in cold weather

Which of the following are the desirable properties for efficient functioning in design for movement joint of water tank? 1. The joint should accommodate repeated movement of the structure without loss of water-tightness 2. The design should provide for exclusion of grit and debris which would prevent the closing of the joint 3. The material used in the construction of movement joints should not slump unduly in hot weather or become brittle in cold weather Correct Answer 1, 2 and 3

Explanation

As per Cl 10.2 of IS 3370 (Part 1): 2009 for recommendations for design of concrete structure for storage of liquid, the following are the desirable properties for efficient functioning in design for movement joint of water tank

1. The joint should accommodate repeated movement of the structure without loss of water-tightness.

2. The design should provide for exclusion of grit and debris which would prevent the closing of the joint.

3. The material used for in the construction of movement joints should have following properties:

a) It should not have permanent distortion.

b) It should not be displaced by fluid pressure.

c) It should not slump unduly in hot weather or become brittle in cold weather.

d) It should be insoluble and durable.

e) It should not be affected by exposure to light or evaporation of solvent or plasticizer.

f) It should be non-toxic and shows resistant against chemical and biological actions.

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