The broken stones that were used in the construction of roads in macadam’s construction were?
A. 10mm and 20mm
B. 20mm and 40mm
C. 30mm and 50mm
D. 50mm and 100mm
Answer:D
The broken stones that were used in the construction of roads in macadam’s construction were?
A. 10mm and 20mm B. 20mm and 40mm C. 30mm and 50mm D. 50mm and 100mm
Explanation: The bigger stones that were passing through 100mm sieve were used at the bottom and compacted and the smaller stones that were passing through 50mm were used at the top of the pavement.