How Investigators Can Assess Concrete Strength with On-site Non-destructive Tests and Lessons to Draw from a Benchmark

Denys Breysse, Jean Paul Balayssac*, Samuele Biondi, Adorjan Borosnyoi, Elena Candigliota, Leonardo Chiauzzi, Vincent Garnier, Michael Grantham, Oguz Gunes, Vincenza Anna Maria Luprano, Angelo Masi, Valerio Pfister, Zoubir Mehdi Sbartaï, Katalin Szilagyi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Citations (Scopus)

Abstract

A benchmark is carried out in order to compare how 13 experts define and can carry out an NDT investigation program and derive strength values from NDT measurements. The benchmark is based on simulations, which reproduces a synthetic data set corresponding to a grid of twenty 3m-high columns defining the structure of a building made up of beams and columns. The experts must assess the mean and the standard deviation of compressive strength. Three levels of assessment are considered corresponding to different quantities of test results (destructive or non destructive) available for the experts. The comparison of the various strategies used by the experts and the analysis of results enables the identification of the most influential parameters that define an investigation approach and influence its efficiency and accuracy. A special emphasis is placed on the magnitude of the measurement error. A model of the investigation strategy is also proposed.

Original languageEnglish
Title of host publicationRILEM State-of-the-Art Reports
PublisherSpringer Science and Business Media B.V.
Pages183-218
Number of pages36
DOIs
Publication statusPublished - 2021

Publication series

NameRILEM State-of-the-Art Reports
Volume32
ISSN (Print)2213-204X
ISSN (Electronic)2213-2031

Bibliographical note

Publisher Copyright:
© 2021, RILEM.

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