Giatec Surf™ Surface Resistivity

Surf™ is a laboratory non-destructive test device for rapid, easy and accurate measurement of the surface electrical resistivity of concrete based on the four-probe (Wenner-Array) technique according to AASHTO TP 95-11, and pending ASTM specifications. Surf™ has a unique and customized setup, which enables the measurement of electrical resistivity with high accuracy by reducing the duration of the test and minimizing ambient effects.

The Surf™ provides a test cradle for 4″x 8″ and 6″ x 12″ cylinders, which provides four (4) 4-sensor arrays positioned at 90° intervals around the cradle. Surf™’s patented technology automatically takes measurements at each of the sensor points around the cylinder and then repeats the process for all 8 measurements in less than 15 seconds. The included PC software takes this information and generates the reports required by the standards.

Applications:

• Performance-based, quality control testing
• Estimation of chloride diffusion coefficient
• Service-life design of concrete structures
• Remaining life estimation of structures
• Crack detection in under load concrete
• Monitoring the setting time of fresh concrete

Features:

• Patented technology
• Fully compliant with both AASHTO TP95 and the upcoming ASTM standard
• Fast measurement (8 measurements < 15s)
• Four-channel surface resistivity meter
• Variable frequency (13 – 100 Hz)
• Limits moisture loss
• Automatic report generation with PC software
• Fresh concrete testing/crack detection

Specifications:

• Measurement Channels – 4
• Measurement Display – Yes
• LCD Display Area – 65 x 33 mm
• Dimensions of Device – 200 x 160 x 70 mm
• Software – Surf™ Data Monitor

The Giatec Surf™ kit includes” the Surf™ unit, 100 × 200mm (4″ x 8″) sample holder, power adaptor, USB cable, communication software, user manual, and conductive gel.