Discussion :: Building Maintenance
- In the case of dormant cracks wider than about 1m, it is more economical to use ____________
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Answer : Option B
Explanation :
In the case of dormant cracks wider than about 1m, it is more economical to use grouting and sealing technique. This method involves enlarging the crack along its exposed face and then the crack is cleaned and grouted and the surface is then sealed with a suitable joint sealant and various other techniques widely used for repair of dormant or dead cracks include dry packing, polymer impregnation over lays and surface treatments and autogenous handling.
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