Ask a site engineer in Oman what makes a road fail early, and they'll rarely blame the asphalt. The problem is usually the layer underneath. A sub-base that wasn't compacted properly will settle, rut and crack, and fixing it once the surface is down costs far more than doing it right the first time. Nobody puts compaction in the project brochure, but it decides how long everything above it...
English
French
Spanish
Portuguese
Deutsch
Turkish
Dutch
Italiano
Russian
Romaian
Portuguese (Brazil)
Greek