Transportation is an important sector in supporting society’s economic activities,
because it provides access for the society. This is generally known as road. Road
conditions are expected to provide best performance of security and comfort for users.
Jalan Ringroad Utara is one of crowded road in Yogyakarta, because Jalan Ringroad
Utara is the main road for people to do activities and also a inter-provincial route. This
may cause the defect. Especially in traffic light, because when the vehicle is stop and
start to run, it will increase load to the pavement. Therefore, road performance may
decrease. In this study, it will review and investigate existing pavement and replace
with rigid pavement layer, but still using, rigid pavement layer above existing
pavement.
After surveying, Alligator cracking, patch and potholes are the cause of the
decrease of road performance. Therefore rigid pavement is designed to improve this by
Continuously Reinforced Concrete Pavement (CRCP). For this designing method, the
calculation will be done from designing the slab thickness. The slab thickness must
fulfill the requirement (the fatigue and erosion ≤ 100 %). After that, designing the
reinforcement. For this designing method, there are two types of reinforcement that
used in Continuously Reinforced Concrete Pavement (CRCP). (1) Transverse
reinforcement, (2) longitudinal reinforcement, but for longitudinal reinforcement must
fulfill the checking of theoretical distance between cracking.
This designing is following the Pd T-14-2003, the data for designing of rigid
pavement came from survey in the research location. There are 3 types of road damage:
Alligator Cracking, Potholes and Patch. From the calculation, the author got slab
thickness = 220 mm, base foundation = 150 mm, the subgrade will adjust the elevation.
The transverse reinforcement used ɸ12 - 250 mm and longitudinal reinforcement used
ɸ16 - 120 mm.