Effective Design and Operation of Concrete Infrastructure

Effective Design and Operation of Concrete Infrastructure

ERPE research has made major impacts on the design and operation of concrete infrastructure through design, corrosion investigation/residual life prediction and non-destructive testing (NDT).

Reinforcing Steel design and corrosion monitoring:

This has addressed fundamental modelling of behaviour [1], new reinforcing materials, strength of new constructions and deterioration of concrete structures. It has made significant contribution to the fib Model Code 2010 “As a member of fib Task Group 4.5 I confirm that ERPE has been responsible for a review of the technical content of the bond between embedded reinforcement and concrete and their revisions now provide a more rational evidence based approach.”

Quantification of NDT Test Interpretations; instrumentation and software development:

Both electromagnetic ground penetrating radar (GPR) and stress wave impact-echo NDT identification of defects [2] provided the key input to the American Concrete Institute (ACI 228-2r-2013), influencing Section 3.2 and Table 3.2.3.2. "As Manager of NDT practice in Dynasty Group I verify that the ERPE has established new understandings of the accuracy and effectiveness of NDT techniques such as radar testing of concrete, and masonry, plus impact echo testing as I was a voting member of this ACI 228 Committee."

Testing and monitoring site measurements:

Evaluation and monitoring of concrete deterioration has developed a new corrosion monitoring [3] instrument, licensed to Amphora NDT “I confirm that this leading research on the performance of concrete in extreme environments is of major importance to the international bridge community. This is an excellent example of researchers providing an instrument to monitor on-site durability issues worldwide” - Network Bridges Manager, Transport Scotland.

Ground Penetrating Radar:

GPR modeling [4] is well-established for infrastructure monitoring from concrete and masonry infrastructure through to ice cap probing. The ERPE developed GprMax website, with 4,000 downloads, has worldwide impact on improving the accuracy of radar surveys. “As CEO of Sensors & Software, the world’s leading GPR equipment manufacturer, I confirm that GprMax is the preferred modelling software which is now used by industry and researchers worldwide.”

[1] Cairns, J., Du, Y. and Law, D.W. “Structural Performance of Corrosion-Damaged Concrete Beams”, ICE Magazine of Concrete Research, Vol. 60, No. 5, pp. 359-370, 2008. DOI:10.1680/macr.2007.00102

[2] Padaratz, I.J. and Forde, M.C. “A Theoretical Evaluation of Impulse Radar Wave Propagation through Concrete”, Journal of Non-Destructive Testing & Evaluation, Vol. 12, pp. 9-32, 1995. DOI:10.1080/10589759508952833

[3] McCarter, W.J., Emerson, M. and Ezrim, H., “Properties Of Concrete In The Cover Zone: Developments In Monitoring Techniques”, ICE Magazine of Concrete Research, Vol. 47, No. 172, pp. 243-251, 1995. DOI:10.1680/macr.1995.47.172.243

[4] Giannopoulos, A., “Modelling Ground Penetrating Radar By GprMax”, Construction and Building Materials, Vol. 19, pp. 755–762, 2005. DOI:10.1016/j.conbuildmat.2005.06.007

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Monday, 5 May, 2014 - 11:57