Experimental Study and Analytical Modeling on Fatigue Properties of Pervious Concrete Made with Natural and Recycled Aggregates

As a solid pollutant, the recycled aggregate can be reused to replace the natural aggregate to cast pervious concrete, promoting resource recycling and reducing environmental pollution. Pervious concrete is usually applied to transportation engineering as pavements and decks, which are often subject...

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Bibliographic Details
Published in:International journal of concrete structures and materials 2019, 13(1), 45, pp.129-141
Main Authors: Chen, Xudong, Shi, Dandan, Shen, Nan, Li, Shengtao, Liu, Saisai
Format: Article
Language:English
Subjects:
Aggregates
Analysis
Bending fatigue
Building Materials
Concrete
Cycle ratio
Cyclic loads
Damping ratio
Engineering
Environmental engineering
Fatigue
fatigue life prediction
Fatigue testing machines
Fatigue tests
fracture parameter
Materials
Mechanical properties
pervious concrete
Plastic deformation
plastic strain
recycled aggregate
Recycling (Waste, etc.)
Solid Mechanics
Storage modulus
Strain
Structural Materials
Transportation engineering
토목공학
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Summary:As a solid pollutant, the recycled aggregate can be reused to replace the natural aggregate to cast pervious concrete, promoting resource recycling and reducing environmental pollution. Pervious concrete is usually applied to transportation engineering as pavements and decks, which are often subjected to fatigue loads in service. Therefore, it is essential to investigate the fatigue mechanical properties of pervious concrete. In this study, four-point cyclic bending loading test of natural aggregate pervious concrete and recycled aggregate pervious concrete were conducted under four different stress levels. By analyzing the experimental results, the mechanical performances, including hysteresis curve characteristics, damping ratio, dynamic elastic modulus and cyclic strain, of two kinds of pervious concrete under cyclic loading were revealed. Based on the improved EPF model, the relationship between fracture parameters, plastic strain and unloading strain were obtained. Besides, the relationship between the loading cycles and the ratio of plastic strain to unloading strain was received according to fatigue testing data under different stress levels. Further, the simplified fatigue model of pervious concrete was proposed and the experimental data was fitted with the model results. The fitting result reached a good agreement.
ISSN:1976-0485
2234-1315
DOI:10.1186/s40069-018-0305-0