Abstract
The applicability of acoustic emission (AE) techniques to monitor the mechanism of evolution of polyvinyl alcohol (PVA) fiber concrete damage under temperature fatigue loading is investigated. Using the temperature fatigue test, real-time AE monitoring data of PVA fiber concrete is achieved. Based on the AE signal characteristics of the whole test process and comparison of AE signals of PVA fiber concretes with different fiber contents, the damage evolution process of PVA fiber concrete is analyzed. Finally, a qualitative evaluation of the damage degree is obtained using the kurtosis index and b-value of AE characteristic parameters. The results obtained using both methods are discussed.
Highlights
The application of fiber-reinforced concrete in various structures is increasing
The durability and frost resistance of concrete materials can be improved when mixed with Polyvinyl alcohol (PVA) fiber
This is reasonable because the deformation resistance capacity for high fiber content material is better than with low content fiber
Summary
The application of fiber-reinforced concrete in various structures is increasing. Fiber can improve the tensile strength of concrete, its resistance to deformation, durability, dynamic effects, and so on [1].The crack resistance and toughness of fiber are better than those of plain concrete because an increase in fiber content enhances fiber resistance and delays cracking of the material. The application of fiber-reinforced concrete in various structures is increasing. Fiber can improve the tensile strength of concrete, its resistance to deformation, durability, dynamic effects, and so on [1]. The crack resistance and toughness of fiber are better than those of plain concrete because an increase in fiber content enhances fiber resistance and delays cracking of the material. Sensors 2012, 12 other factors, expose concrete structures during their service life to temperature freeze-thaw conditions, which cause temperature fatigue damage. Polyvinyl alcohol (PVA) fiber is an environmentally friendly, reinforced cement material ideal for use in northern China because of its good dispersion characteristics, ease of use in construction, good affinity with cement, alkali resistance, and resistance to the effects of climate and weather conditions. The durability and frost resistance of concrete materials can be improved when mixed with PVA fiber
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
