In English
Ground penetrating radar and road surveys
RC-Infra Oy is a family-owned company from Ulvila, Finland, specialising in road and pavement investigations. We work in Finland and abroad.
Our services
- Air void content measurement of new asphalt pavements with GPR (PANK-approved)
- GPR surveys of roads, streets, railways and terrain
- Road structure investigations for design: layer thicknesses, sampling and drainage analysis
- Friction measurement of roads, streets and runways
- Pavement coring and sampling for laboratory testing (30–300 mm)
- Truck-mounted attenuator (TMA) vehicles for work zone protection
Why RC-Infra
Our managing director has worked in the road sector since 1984, and RC-Infra Oy was founded in 2010. We carry out the measurements, interpret the data and write the reports ourselves, and we protect our work zones with our own TMA vehicles.
Ground penetrating radar
Two GPR survey vehicles and terrain equipment
Our two survey vehicles are equipped with GSSI SIR-30 GPR systems, 1 GHz and 2 GHz air-coupled antennas and a 400 MHz ground-coupled antenna. For terrain and water surveys we use a GSSI SIR-4000 system, positioned with RTK-corrected GPS.
The data is processed and interpreted with Road Doctor software, and the results are tied to the project chainage or the road register.
Air void content of new asphalt concrete (AC) and stone mastic asphalt (SMA) pavements is calibrated with cores. Our measurement activity is approved by PANK ry (Päällystealan neuvottelukunta), the Finnish pavement sector’s advisory body.

Friction and coring
Skiddometer BV11 and core drilling
Friction is measured with a Moventor Skiddometer BV11 trailer with a water wetting system. The measurement is continuous at a fixed slip and runs at traffic speed, giving the friction coefficient along the whole section on roads, streets and runways.
Pavement and stabilisation cores are drilled with five electric core drills and diamond core bits, 30–300 mm in diameter. Road structure samples are taken with an RC-1400 sampling rig, and we can also take samples from railway embankments.

Equipment and approvals
Quality and safety
- PANK approval for air void content measurement
- Two GPR survey vehicles with GSSI SIR-30 systems
- GSSI SIR-4000 for terrain and water surveys
- Road Doctor software for interpretation and reporting
- Moventor Skiddometer BV11 friction trailer with a water wetting system
- RC-1400 sampling rig and five electric core drills
- Two TMA vehicles with Nissen Rambo 2 Pro attenuators approved by the Swedish Transport Administration (Trafikverket)
Contact us
Request a quote
Tell us the location, the extent of the work, the schedule and what you need to find out, and we will send you a quote.
Vesa Vainio, Managing Director
+358 400 591 737, vesa.vainio@rcinfra.fi
Nuutti Vainio, Measurement Manager
+358 40 762 9737, nuutti.vainio@rcinfra.fi
RC-Infra Oy, Pihlajaranta 12, 28400 Ulvila, Finland. Business ID 2288118-7.