Building Construction
The type of pointing in which upper side of mortar joints is kept about 12 mm inside the face of the masonry and bottom is kept flushed with face of wall, is

Grooved pointing
Recessed pointing
Struck pointing
Truck pointing

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Building Construction
Raft foundations are used for:

All listed here
Counter acting the hydrostatic effect
Providing increased area of foundation over poor bearing capacity of soil
Spanning over small soft or loose pockets

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