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High-Frequency Fatigue Testing of Recycled Aggregate Concrete

LADICIM (Laboratory of Materials Science and Engineering), University of Cantabria, E.T.S. de Ingenieros de Caminos, Canales y Puertos, Av./Los Castros 44, 39005 Santander, Spain
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Appl. Sci. 2020, 10(1), 10; https://doi.org/10.3390/app10010010
Received: 11 November 2019 / Revised: 4 December 2019 / Accepted: 11 December 2019 / Published: 18 December 2019
(This article belongs to the Special Issue High-Performance Eco-Efficient Concrete)
Concrete fatigue behaviour has not been extensively studied, in part because of the difficulty and cost. Some concrete elements subjected to this type of load include the railway superstructure of sleepers or slab track, bridges for both road and rail traffic and the foundations of wind turbine towers or offshore structures. In order to address fatigue problems, a methodology was proposed that reduces the lengthy testing time and high cost by increasing the test frequency up to the resonance frequency of the set formed by the specimen and the test machine. After comparing this test method with conventional frequency tests, it was found that tests performed at a high frequency (90 ± 5 Hz) were more conservative than those performed at a moderate frequency (10 Hz); this effect was magnified in those concretes with recycled aggregates coming from crushed concrete (RC-S). In addition, it was found that the resonance frequency of the specimen–test machine set was a parameter capable of identifying whether the specimen was close to failure. View Full-Text
Keywords: high-frequency fatigue test; recycled aggregate; recycled aggregate concrete; fatigue; Locati test high-frequency fatigue test; recycled aggregate; recycled aggregate concrete; fatigue; Locati test
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MDPI and ACS Style

Sainz-Aja, J.; Thomas, C.; Polanco, J.A.; Carrascal, I. High-Frequency Fatigue Testing of Recycled Aggregate Concrete. Appl. Sci. 2020, 10, 10. https://doi.org/10.3390/app10010010

AMA Style

Sainz-Aja J, Thomas C, Polanco JA, Carrascal I. High-Frequency Fatigue Testing of Recycled Aggregate Concrete. Applied Sciences. 2020; 10(1):10. https://doi.org/10.3390/app10010010

Chicago/Turabian Style

Sainz-Aja, Jose; Thomas, Carlos; Polanco, Juan A.; Carrascal, Isidro. 2020. "High-Frequency Fatigue Testing of Recycled Aggregate Concrete" Appl. Sci. 10, no. 1: 10. https://doi.org/10.3390/app10010010

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