RSA/Gautrans
Focus area activities: Concrete pavement testing
Competency Area: Materials
Focus Area |
Description |
Activities |
Results |
Concrete pavement testing(Hilton) |
Apply uni-directional traffic across joints in concrete pavement trial sections. |
Evaluate aggregate interlock load transfer efficiency and erosion of subbase Evaluate steel dowel and aggregate interlock load transfer efficiency and erosion of subbase Evaluate performance of dolerite and quartzite aggregates |
Environmental conditions had a major effect on the concrete slab behaviour. Severe erosion occurred during trafficking combined with moisture tests. Moisture Accelerated Distress caused formation of a void underneath the slabs, which affected the pavement behaviour. |
Concrete pavement testing (Hilton) |
Apply HVS loading to a concrete inlay on the N3 to determine remaining life of a conventionally trafficked section. |
Determine the remaining life of a concrete inlay to estimate need for rehabilitation. |
The concrete inlay still has a substantial remaining life - no discernable damage was done to the section during the test that was equal to approximately 6 years of typical traffic for the section. |
Reports for Focus area: Concrete pavement testing
Competency Area: Materials
Title |
Report No |
Author(s) |
Date of Issue |
| Concrete pavement research. Construction report: HVS testing of the concrete test sections on the N3 near Hilton. | CR-2004/33 | Brink, A.C. | 2005 |