Predicting material properties of concrete from ground-penetrating radar attributes

Isabel M. Morris, Vivek Kumar, Branko Glisic

Research output: Contribution to journalArticlepeer-review

Abstract

We present here a laboratory-based experimental protocol that seeks to establish and characterize the relationship between ground-penetrating radar attributes and the mechanical properties (density, porosity, and compressive strength) of typical industry concrete mixes. The experimental data consist of ground-penetrating radar attributes from 900 MHz radargrams that correspond to simultaneously measured physical properties of Portland cement concrete, alkali-activated concrete, and cement mortar. Appropriate regression models are trained and tested on this data set to predict each physical property from ground-penetrating radar attributes. From a small selection of individual attributes, including total phase and intensity, trained random forest regression models predict porosity (R2 = 0.83 from the instantaneous amplitude), density (R2 = 0.67 from the intensity attribute), and compressive strength (R2 = 0.51 from instantaneous amplitude). These novel relationships between physical properties and ground-penetrating radar attributes indicate that material properties could be predicted from the attributes of ordinary ground-penetrating radar scans of concrete.

Original languageEnglish (US)
JournalStructural Health Monitoring
DOIs
StateAccepted/In press - 2020

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Mechanical Engineering

Keywords

  • Nondestructive evaluation
  • concrete
  • data-driven (machine learning) prediction models
  • ground-penetrating radar
  • material properties
  • porosity

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