The conversation between human and AI assistant.
How many size of ballast used in wbm road?
Can you tell me the difference between WBM and asphalt road construction?
In asphalt road construction, hot-mix asphalt is laid on a prepared base course to make a smooth and flexible road surface, whereas in WBM road construction, loose aggregates are laid and compacted using water to make a stable surface. Additionally, asphalt road construction is more expensive than WBM, but is more durable as well.