With GPR scans relocatable three-dimensionally to ±18mm using RTK, Fugro Aperio says it is able to generate accurate maps of pavement defects such as delamination or debonding. This level of accuracy allows corrective action to be targeted more accurately, cost-effectively and with minimal disruption. Fugro Aperio's application of GPR to identify changes in pavement moisture is helping engineers to detect and remediate the degrading effects of water. Water can reduce sub-grade bearing value, it can lead to sub-grade mud forcing up through slab joints and cracks, and can cause stripping of bitumen from the aggregate, undoing blacktop surfacing over time.
Although common in highways management, asset management principles and tools are new to many airport operators who seek to measure, manage and maintain assets more efficiently. Using surveying disciplines, Fugro Aperio is collecting and integrating bundles of asset data to populate comprehensive, computer based, airfield asset management systems.
