Write down the advantage and disadvantage of cement cocrete road
Answers
Advantages:- 1. Concrete roads have long life than any other roads. 2. These roads are durable and are practically unaffected by weathering agencies. 3. They provide an excellent riding surface under all weather conditions. 4. They provide an impervious, dustless and sanitary surface. 5. They do not develop corrugations. 6 Can be laid on any subgrade. 7. Can be easily reinforced when they are to resist high stresses due to heavy wheel loads of the traffic. 8. Concrete roads are non slipery and offer less tractive resistance. 9. They provide good visibility for traffic during night hours. 10. Maintenance cost is low. Disadvantages:- 1. The initial cost of concrete roads is high. 2. They are liable to crack and warp due to temperature variations. 3. Become noisy under iron-tyred traffic. 4. Skilled supervision and labour are required for construction. 5. less resilient than bituminous or W.B.M roads. 6. Require long time for curing and thus cannot be opened to traffic earlier. 7. It is very difficult to locate and repair sewers and water mains lying under the pavement in their case.