Concrete Scanning Techniques and GPR Advantages
The most common method for measuring the thickness of concrete pavement for measuring the construction quality control is extracting concrete cores. This method provides a relatively accurate thickness measurement, besides it is destructive, labor intensive, and time consuming it is still wide used. Moreover, concrete cores are usually taken approximately every 750 ft. This may be inadequate for estimating the actual thickness profile of a pavement section but, however extracting more cores would damage the pavement extensively and increase the labor cost. The time excessively is also influenced here. A well-established technique for subsurface exploration is a Ground Penetrating Radar (GPR). GPR has been used for several transportation applications, such as measuring layer thickness in asphalt pavement, locating reinforcing bars and tendons, and detecting deteriorations and anomalies in concrete structures. Main advantages of GPR are speed, accuracy, and cost-effectiveness when scans are conducted on large areas.
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Source:
architectureadmirers
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http://www.architectureadmirers.com/
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