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Concrete Imaging & Inspection Services in CT, NY, NJ, MA, RI

Call us at 800.596.9608 or email us at info@undergroundsurveying.com to schedule a concrete imaging survey in Connecticut (CT), New York (NY), New Jersey (NJ), Massachusetts (MA), or Rhode Island (RI), or to learn more about this service.

Our Concrete Imaging Capabilities

Before drilling, cutting, or coring through concrete structures, our concrete imaging services can help you locate the position and depth of the following six objects commonly embedded within them:

Rebar Mesh Post-Tension Cables
Locate Rebar Embedded Within Concrete
Locate Wire Mesh Embedded Within Concrete
Locate Post-Tension Cables Embedded Within Concrete

Pre-Tension Cables Conduits Pipes
Locate Pre-Tension Cables Embedded Within Concrete
Locate Conduits Embedded Within Concrete
Locate Piping Embedded Within Concrete


Our Basic Concrete Inspection Capabilities

Our concrete inspection services can help you determine the following structural information in older concrete structures:

The Location of Voids Areas of Deteriorating Concrete
Determine the Location of Concrete Voids
Pinpoint Areas of Deteriorating Concrete


Our Advanced Concrete Inspection Capabilities

Our more advanced inspection services can help you determine if newly built concrete structures conform to their as-builts:

Location of Rebar According to the Asbuilt Location of Rebar According to GPR Data
The Location of Rebar According to the Asbuilt
The Location of Rebar According to the GPR Data

Cross Section View of Vertical Rebar Actual Location of Rebar in the Field
A Cross Section View of Vertical Rebar
The Actual Location of Vertical Rebar in the Field


Concrete Structures Capable of Being Scanned

We are capable of scanning the following six different types of concrete structures shown below:

Suspended Slabs Slabs-on-Grade Columns
Scan Suspended Concrete Slabs
Scan Concrete Slabs-On-Grade
Scan Concrete Columns

Beams Tilt Walls CMU Walls
Scan Concrete Beams
Scan Concrete Tilt Walls
Scan Concrete Masonry Unit (CMU) Walls


Scanning Concrete With Ground Penetrating Radar (GPR) Technology 

Our concrete imaging and inspection surveys are performed with ground penetrating radar (GPR) technology using a customized eight-step concrete imaging and inspection process. GPR technology enables our technicians to scan concrete structures in real-time using a small hand cart, providing immediate results right in the field. Unlike radiography (x-ray) the GPR signal is harmless, a permit is not required, and an exclusion zone is not necessary. Below is an example of some GPR data and the transcription of this data to the surface of a post-tension concrete slab.

GPR Data Interpretation of GPR Data
3-D Ground-Penetrating Radar Data

A 3-dimensional GPR image showing a post-tension cable, conduit, and rebar mat embedded within a suspended concrete slab.
Ground-Penetrating Radar Data Transcribed to the field

The transcription of the GPR data to the surface of the slab, showing the location of a post-tension cable (red wavy line), conduit (solid red line), and rebar mat (solid yellow lines).


Our Six Concrete Imaging & Inspection Survey Design Options

In order to handle a wide variety of different types of projects, we offer our clients four different survey design options. Feel free to choose the option that best fits your needs. If you are not sure which one that is, we can recommend one for you after learning more about your project.

Single Location Clustered Locations
Scan One Single Location at a Time

When drilling, coring, or cutting through the slab at a single location, such as for running a new conduit or pipe through the slab, we can scan a 3' x 3' area surrounding this one location.
Scan Multiple Locations in One Survey Grid

When multiple drilling, coring, or cutting locations are situated close enough to one another within the same section of the slab, we can scan one large area encompassing all of these locations.

Partial Structure Full Structure
Scan One Part of a Large Concrete Structure

When the exact drilling or coring locations or cutting areas are unknown and the structure is large, we can scan a specific section of it, enabling our clients to position their locations accordingly. This same design option is also useful when doing a concrete inspection of an extremely large concrete structure.
Scan an Entire Concrete Structure

When an entire structure needs to be imaged because the exact drilling or coring locations or cutting areas are unknown, or the entire reinforcing layout needs to be determined for concrete inspection purposes, we can scan the entire structure. But this is usually very costly and time consuming, so we avoid it at all costs.



Our Two Levels of Concrete Imaging & Inspection Service

In addition to offering four different survey design options, we also offer two different levels of service. Feel free to choose the level of service that best fits your needs. If you are not sure which one that is, we can recommend one for you.

Level 1 - Field Markings

This is our least complex, quickest, and cheapest level of service. A concrete imaging or inspection survey is performed; the results of the survey are marked on the surface with chalk, paint, marker, tape, crayon, or wax pencil; and a consultation is then performed with an on-site representative to discuss the results of the survey.

Level 1 Concrete Imaging Mark Out

Level 2 - Field Markings & Written Report

This is our most complex, time consuming, and expensive level of service. A concrete imaging or inspection survey is performed; the results of the survey are marked on the surface with chalk, paint, marker, tape, crayon, or wax pencil; a consultation is performed with an on-site representative to discuss the results of the survey; and a written concrete imaging report (PDF), explaining and documenting the results of the survey, is sent via email or a Google Drive shared link.



The Benefits of Using Our Services

  • Reduce the risk of personal injury
  • Minimize the risk of damage to rebar, cables, and conduits
  • Eliminate costly mid-project repairs and delays
  • Preserve the structural integrity of concrete
  • Increase the ease of drilling, cutting, or coring
  • Gain peace of mind

Additional Information

For more information on our concrete imaging and inspection services, please visit the concrete imaging process, concrete imaging projects, and concrete imaging technology pages.