Using Monte-Carlo simulations to evaluate the efficiency of different strategies for nondestructive assessment of concrete strength
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An international benchmark comparing a large variety of concrete strength assessment strategies was proposed by NDT experts of the RILEM committee TC-249. It was based on synthetic data and devoted to the estimation of average strength and concrete strength variability of a series of concrete columns of a single floor building using fixed budget. Based on information gathered after this benchmark, the main contribution of this paper is to simulate, using Monte Carlo simulation, the experts’ assessment strategies (i.e. NDT investigation program and data analysis process). These strategies are repeated a certain number of times in order to establish a representative assessment of each strategy. The quality of estimation by each strategy is evaluated using several indicators. The results show that this quality can be improved by using/changing several controlling factors: improving the quality of measurements, selecting core locations depending on the NDT test results (conditional cores), combining several NDT techniques and increasing the amount of resources.
KeywordsBenchmark Concrete strength Engineering practice Non-destructive techniques Monte Carlo simulation Assessment strategy
The authors gratefully acknowledge all members of RILEM Technical Committee TC-249 ISC for their efforts in preparing this benchmark. Special thanks are due to S. Biondi, M. Fontan, V. Luprano S. and K. Szilágyi for sharing the information about their strategies in the benchmark.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 1.Biondi S (2008) The knowledge level in existing buildings assessment. In: 14th world conference on earthquake enginneering, Beijing, China, October 12–17, 2008, CAEE Chinese Association. Earthquake Engineeing, IAEE International Association. Earthquake engineering, digital paper ID 05-01-0447, Mira Digital PublishingGoogle Scholar
- 2.Breysse D, Balayssac JP, Biondi S, Borosnyói A, Candigliota E, Chiauzzi L, Garnier V, Grantham M, Gunes O, Luprano V, Masi A, Pfister V, Sbartai ZM, Szilagyi K, Fontan M (2015) Comparing investigation approaches and NDT methodologies for concrete strength estimation: an international benchmark. In: NDT-CE conference, Berlin, 15–17 Sept 2015Google Scholar
- 7.Szilagyi K (2013) Rebound surface hardness and related properties of concrete. Ph. D. thesis, University of Technology and Economics, BudapestGoogle Scholar
- 8.EN 13791 (2007) Assessment of in situ compressive strength in structures and precast concrete. CEN, BrusselsGoogle Scholar
- 12.IAEA International Atomic Energy Agency (2002) Guidebook on non-destructive testing of concrete structures. Testing training course series n° 17Google Scholar
- 13.Masi A, Vona M (2009) Estimation of the in situ concrete strength: provisions of the European and Italian seismic codes and possible improvements. In: Cosenza E (ed) Proceedings of the eurocode 8 perspectives from the Italian standpoint workshop, Naples, April 1–3, pp 67–77Google Scholar
- 15.American Concrete Institute (2003) In-place methods to estimate concrete strengths, ACI 228.1R-03 report; 2003Google Scholar
- 18.Soshiroda T, Voraputhaporn K (1999) Recommended method for earlier inspection of concrete quality by non-destructive testing. In: Proceedings symposium concrete durability and repair technology, Dundee, pp 27–36Google Scholar
- 20.Mahmoudipour M (2009) Statistical case study on Schmidt hammer ultrasonic and core compression strength tests’ results performed on cores obtained from Behbahan cement factory in Iran. NDT in progress 2009. In: 5th international workshop of NDT experts, Prague, 12–14 Oct, pp 189–196Google Scholar