DETECTION OF REINFORCING STEEL
GPRS-trained project managers are able to locate rebar and post-tension cables within the concrete using GPR technology. Reinforcing steel locations are marked directly on the work surface to ensure safe and efficient drilling that will preserve the integrity of the structure and reduce the need for repairs or patching. This helps our clients conduct core drilling without accidents, injuries or delay. GPR scanning is also useful when preparing for a renovation that includes electrical outfitting, plumbing, fire protection services, drain installation and duct work.
LOCATING EMBEDDED ELECTRICAL SERVICES
When core drilling or saw cutting in commercial and industrial locations, accurate detection of electrical conduits is essential for preventing safety risks, power outages and costly damages. GPRS provides two specific but different scanning services in this area: Elevated concrete slab scanning and concrete slab-on-grade locating. Elevated concrete slab scanning involves detecting embedded electrical conduits prior to core drilling a hole through the slab. [see figure 1] Concrete slab-on-grade locating – a concrete slab poured directly over dirt – involves scanning a trench line for conduits before conducting saw cutting and trenching to install a sanitary pipe, water line or something similar. [see figure 2]
Also crucial in the scanning process is determining what’s in the concrete structure. This includes gauging the concrete thickness, what the rebar content is, its spacing and its elevation within the slab. This extensive, critical information helps our clients and their teams to understand the makeup of the concrete.
VOIDS DETECTION AND LOCATIONS
Through their extensive training and experience, GPRS project managers have the ability to 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. GPRS ground penetrating radar technology can help our clients locate these areas and – most important - avoid collapses.