Analyses on impact behaviour and reinforcement mechanism of basalt fiber and textile reinforced cement-based composite materials

Abstract

The research work is conducted to investigate the influence on the dynamic mechanical properties of concrete with different volume content of basalt fibers and the different layers number of basalt fabrics, as well as the hybrid effect between fibers and fabrics. The relationships among the impact force, impact time, displacement of the specimens and their failure patterns were analyzed. The results showed that the basalt fabric could significantly improve the brittleness and the impact resistance of concrete. Moreover, the impact force and energy absorption of the specimens increased continuously with the increase of impact energy. The fabrics could play the vital roles in transmitting stress, absorbing energy and bearing load. Basalt fiber could enhance the impact resistance of concrete but it was not obvious. Finally, the different reinforcement mechanisms of basalt fiber and basalt fabric under impact load were proposed.

Keywords:

• Basalt fiber
• textile
• cement-based composites
• impact behaviour
• failure pattern
• reinforcement mechanism

Acknowledgements

The experimental work described in this paper was conducted at the Key Laboratory of Eco-textiles, Ministry of Education in the Jiangnan University. Helps during the testing from staffs and students at laboratory are greatly acknowledged.

Disclosure statement

The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Additional information

Funding

This work was financially supported by the National Key Research and Development Program of China (Grant No. 2016YFB0303200), the National Key Research and Development Program of China (Grant No. 2018YFC0810300), the Fundamental Research Funds for the Central Universities (Grant No. JUSRP52007A) and Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX20_1785).