Abstract

When faced with the problems of aging infrastructure and historic constructions, there are many unknowns such as physical properties and arrangements of materials. This information is necessary for estimating the capacity, safety, and overall condition and for ensuring successful maintenance or repair of the structure. Often, this information is only available through invasive means, which can be unsightly, legally prohibited, or too expensive. Ground penetrating radar (GPR) is a noninvasive assessment tool successful at infrastructure inspection, feature detection, and condition assessments. An experiment was designed to investigate the ability of GPR to predict the physical properties (compressive strength, young's modulus, and porosity) of concrete samples. A set of samples with variable properties and mix designs was fabricated. The samples were tested both with traditional methods (physical destructive testing) and by noninvasive GPR scanning at 7, 14, 28, and 56 days. A variety of machine learning approaches were used to investigate correlations between the physical property data and the GPR data, resulting in a model that predicts the density, compressive strength, and porosity of concrete with some success (R2-values between 0.4 and 0.8). This predictive model is currently being further developed and tested on several case studies.

Original languageEnglish (US)
Title of host publication20th Congress of IABSE, New York City 2019
Subtitle of host publicationThe Evolving Metropolis - Report
PublisherInternational Association for Bridge and Structural Engineering (IABSE)
Pages2420-2427
Number of pages8
ISBN (Electronic)9783857481659
StatePublished - Jan 1 2019
Event20th IABSE Congress, New York City 2019: The Evolving Metropolis - New York City, United States
Duration: Sep 4 2019Sep 6 2019

Publication series

Name20th Congress of IABSE, New York City 2019: The Evolving Metropolis - Report

Conference

Conference20th IABSE Congress, New York City 2019: The Evolving Metropolis
CountryUnited States
CityNew York City
Period9/4/199/6/19

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction

Keywords

  • Concrete
  • Ground penetrating radar
  • Historic buildings
  • Material properties
  • Non-destructive testing

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  • Cite this

    Morris, I. M., Glisic, B., Kumar, V., & White, C. E. (2019). Experimental approaches to estimate concrete properties with ground penetrating radar. In 20th Congress of IABSE, New York City 2019: The Evolving Metropolis - Report (pp. 2420-2427). (20th Congress of IABSE, New York City 2019: The Evolving Metropolis - Report). International Association for Bridge and Structural Engineering (IABSE).