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Field Testing Services

Our experienced includes field testing and observation of earthwork, concrete and bituminous construction. Types of projects include public works - observation of storm and sanitary sewer installation, paving and ancillary construction, transportation - highways, bridges, and airports, buildings - office, commercial, industrial, multi-unit residential, and landfill construction documentation.

GeoTest maintains seven nuclear density meters for compaction monitoring projects. Out field equipment is maintained and calibrated on a regular basis to assure reliable service. Special services include concrete coring, nondestructive testing, and presuremeter testing.

Field Services Offered

• Pavement Smoothness Profiling
• Construction observation for water and sewer utilities
• Location and quality testing of materials for construction
• Pre-bid testing on borrow ideas
• Compaction monitoring and testing during earthwork
• Excavation monitoring and testing
• Tests on spray applied fire resistive materials
• Bolt torque testing
• Concrete coring and CIPPOC testing
• Concrete non-destructive tests: Windsor Probe, Swiss Hammer and Maturity Meter strength estimation tests
• Sampling and Testing concrete, asphalt, masonry, and mortar in the field
• WisDot Quality Management Program testing
• Airport Quality Management Program testing

WisDOT Quality Management Program

• Compressive Strength Testing Tech
• AGG Tech II
• PCC Tech I
• Asphalt Tech I
• Grading Tech I
• Profilograph Operator I
• PCC Tech II
• Nuclear Density Tech
• AGG Tech IPP

Pavement Smoothness Profiling

What is an ASTM Class 1 Inertial Profiler?

One of the greatest technological advances in pavement smoothness technology is the development of the inertial profiler.  Developed by General Motors research engineers in the 1960’s, the inertial profiler is fast becoming the nation’s first choice for smoothness measurement.  The components of an inertial profiler are a height sensor (laser), an accelerometer, a distance measuring device, a photocell and a computer with software to compute the profile.

All these combined can calculate the profile of a section of pavement.  The data can be used to calculate various indexes, the most common being the Profile Index and the International Roughness Index. 

Our equipment can provide these values in printed and electronic format at the job site.

LMI Roline Laser

GeoTest has available a LMI Roline laser for use with the lightweight profiler.  The Roline is recognized to reduce inflated IRI and PI values caused by pavement texture.  The Roline also provides the highest repeatability value when compared to other lasers on textured pavements.   The Roline laser takes 100 readings over a 4 inch line to provide an accurate measurement of the surface smoothness.   

TriODS Laser

GeoTest has available a pair of TriODS lasers for use with either the Lightweight or High Speed profilers.  The TriODS offer extremely high accuracy on all pavement types.  The TriODS provides an average of three measurements which reduces high IRI values caused by pavement texture or irregularities.  The dual units provide single pass coverage, helping reduce the time required on-site and traffic interruptions.