Journal article
Pervious concrete under flexural fatigue loading: Performance evaluation and model development
Construction & building materials, Vol.207, pp.17-27
05/20/2019
Handle:
https://hdl.handle.net/2376/112467
Abstract
•Flexural fatigue testing was conducted on pervious concrete with different porosities and aggregate types.•Fatigue life of pervious concrete was mainly controlled by stress ratio.•Porosity did not influence the fatigue behavior of pervious concrete.•Two-parameter Weibull distribution found to represent the fatigue test results of pervious concrete.•Fatigue models are developed at different reliability levels to predict the fatigue life of pervious concrete.
Pervious concrete (PC) is used for parking lots and streets that are subjected to repeated wheel loading, therefore it is necessary to characterize the fatigue life (N) of PC for pavement design. This research investigates the behavior of PC beams made with two aggregates (angular and round) and three porosity levels (20%, 25% and 30%) under flexural fatigue loading in three stress ratios (SR:) 0.75, 0.8, and 0.85. The results showed that N is controlled by SR, while porosity showed no statistically significant effect on flexural fatigue. Two-parameter Weibull distribution was fitted to the test data to generate fatigue models at different reliability levels. Using the existing model for portland cement concrete (PCC) for PC results in an overestimation of N for SR > 0.75 due to the highly porous and brittle macrostructure of PC. Existing PCC model agrees with the proposed PC model in predicting N at 0.5 < SR < 0.75, while overestimates N at SR < 0.5. The proposed fatigue model can be used in the thickness design of PC pavements.
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Details
- Title
- Pervious concrete under flexural fatigue loading: Performance evaluation and model development
- Creators
- Othman AlShareedah - Civil and Environmental Engineering Department, Washington State University, 2001 East Grimes Way, PACCAR 200W, Pullman, WA 99164, United StatesSomayeh Nassiri - Civil and Environmental Engineering Department, Washington State University, 2001 East Grimes Way, PACCAR 248, Pullman, WA 99164-5815, United StatesJ. Daniel Dolan - Civil and Environmental Engineering Department, Washington State University, 2001 East Grimes Way, PACCAR 144, Pullman, WA 99164, United States
- Publication Details
- Construction & building materials, Vol.207, pp.17-27
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900548012701842
- Language
- English
- Resource Type
- Journal article