Page 144 - Microsoft Word - 20120528 Unesco study

Step 6: Applying of the wearing course
The wearing course of the traditional construction exists of asphalt. The thickness of the
asphalt layer is depending of the expected amount of traffic. In table 3.23 are the costs of the
wearing course per layer extended.

Soil type 1: Organic clays Soil type 2: Clay Soil type 3: Sandy clay Soil type 4: Sand

Roadtype 1: Highways $ 1.436,50 $ 1.352,00 $ 1.352,00 $ 1.352,00
Roadtype 2: Primary roads $ 1.267,50 $ 1.267,50 $ 1.267,50 $ 1.267,50
Roadtype 3: Secondary roads $ 1.098,50 $ 1.098,50 $ 1.098,50 $ 1.098,50
Roadtype 4: Rural roads $ 845,00 $ 845,00 $ 845,00 $ 845,00
Roadtype 5: Access roads $ 676,00 $ 676,00 $ 676,00 $ 676,00
Table 10: Summarized construction costs step 6 in Mexican Pesos per m
2

98