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รูปที่ 5-2 Typical Flexible Pavement

TYPICAL FLEXIBLE PAVEMENT

SEAL COAT

TACK COAT

SURFACE COURSE
FLEXIBLE PAVE

PAVEMENT MENT BINDER COURSE

STRUCTURE LEVELING COURSE PRIME COAT

BASE COURSE CBR 80 TO 100

SUB BASE COURSE CBR 20 TO 50

SELECT MATERIAL CBR below 20

COMPACTED SUBGRADE

UNCOMPACTED SUBGRADE

NOTE

1. the word “structure” is often deleted from the phrase “flexible pavement
structure.” Also the word “Course” is often deleted from “binder course,”

and Subbase course

2. All layers and coats are not present in every flexible pavement structure
3. Demarcation between subgrade and subsoil is indefinite

**See Table 5 -2 for recommendations on materials