In rough cast finish, the mortar for the final coat has the ratio ____________ (cement: sand: aggregate).(a) 1 : 3/2 : 3(b) 3/2 : 1 : 3(c) 1 : 3/2 : 4(d) 1 : 1/2 : 3The question was posed to me in an interview for job.The origin of the question is Types of Plaster Finishes topic in division Pointing and Plastering of Construction & Building Materials

In rough cast finish, the mortar for the final coat has the ratio ____

1.	In rough cast finish, the mortar for the final coat has the ratio ____________ (cement: sand: aggregate).(a) 1 : 3/2 : 3(b) 3/2 : 1 : 3(c) 1 : 3/2 : 4(d) 1 : 1/2 : 3The question was posed to me in an interview for job.The origin of the question is Types of Plaster Finishes topic in division Pointing and Plastering of Construction & Building Materials
Answer» Right answer is (a) 1 : 3/2 : 3 Explanation: In rough cast finish, the mortar for the FINAL coat has the ratio 1 : 3/2 : 3 (CEMENT : sand : aggregate). Here, the size of the coarse aggregate varies from 3mm to 12 MM. A large trowel is used to dash the mortar against the prepared PLASTERED SURFACE.

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