Bureau of Indian Standards has laid detailed rules regarding construction practices. However, in general, following principles in this regard are in order :
Mortar for Joints
Same type of mortars are used in stone masonry as in the case of brickwork. Generally, good quality stone work is built in cement mortar 1 : 3.
Curing
All faces of the masonry work shall be kept moist fur a minimum period of seven days.
Scaffolding
While single scaffolding can be allowed for rubble masonry, it would be preferable to have double scaffolding for coursed rubble masonry of first sort.
In the case of ashlar work only double scaffolding should be permitted.
The costing should be as low as possible. Government has it;s own rules about this. The perfect execution of laws are also needed. The contractors should also have proper training and skill to do it. patio pavers should have good knowledge
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