Answer:
B. Grouting
Explanation:
These are the options for the question;
A. Epoxy resin
B. Grouting
C. Tensioning
D. Ranging
In the case of dormant cracks wider than about 1m, it is more economical to use grouting method.
Grouting techniques is a techniques that is achieved by removal of dirt or unwanted substance from the crack of the the faulty part and then grouting of the crack after which the surface is sealed by sealants. It should be noted that grouting is economical than other methods such as surface treatment.
