VOIDS DETECTION AND LOCATIONS
We can also locate voids – air gaps between the sub-grade, dirt and the concrete slab-on- grade – hidden below concrete or asphalt surfaces. This degradation occurs over time due to compaction, pipe ruptures or erosion but is often undetectable on the surface. EMA Concrete GPR ground penetrating radar can help our clients locate these areas and – most important – avoid collapses.
COST OF CONCRETE GPR
Concrete rebar GPR testings are less expensive than XRAY due to its accuracy. The equipment is more expensive and a minimum of 2 operators is needed at all times. As a rule of thumb, concrete x-ray will cost double the hourly rate of GPR – although pricing by image may be more attractive for both parties. $150-$170 per image is fairly standard, combined with a mobilization charge of several hundred dollars. Night and weekend work is charged at 1.5 times standard rates which can lead to overtime rates too.
Protection from radiation is an important aspect of industrial radiography. The International Atomic Energy Authority (IAEA) had developed basic safety guidelines regarding the practice.
Rebar, PT Cables GPR Detection Services