Dynamic mechanical properties of basalt fiber engineered cementitious composites

ZHANG Na; ZHOU Jian; XU Mingfeng; LI Hui; MA Guowei

doi:10.11883/bzycj-2019-0351

Volume 40 Issue 5

May 2020

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ZHANG Na, ZHOU Jian, XU Mingfeng, LI Hui, MA Guowei. Dynamic mechanical properties of basalt fiber engineered cementitious composites[J]. Explosion And Shock Waves, 2020, 40(5): 053101. doi: 10.11883/bzycj-2019-0351

Citation:

ZHANG Na, ZHOU Jian, XU Mingfeng, LI Hui, MA Guowei. Dynamic mechanical properties of basalt fiber engineered cementitious composites[J]. Explosion And Shock Waves, 2020, 40(5): 053101. doi: 10.11883/bzycj-2019-0351

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Dynamic mechanical properties of basalt fiber engineered cementitious composites

doi: 10.11883/bzycj-2019-0351

ZHANG Na^{1, 2
,},
ZHOU Jian^{1
,
,},
XU Mingfeng¹,
LI Hui¹,
MA Guowei¹

1.
School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China
2.
Department of Defense and Transportation, Army Military Transportation College, Tianjin 300161, China

Received Date: 2019-09-11
Rev Recd Date: 2019-12-11

Available Online: 2020-03-25

Publish Date: 2020-05-01

Abstract

Abstract

Basalt fiber engineered cementitious composites (BF-ECCs) were prepared by using a certain ratio of basalt fiber and cement-based material. The prepared material showed multiple cracks in static tensile test and its tensile strain was above 0.5%. For the cementitious composites with different basalt fiber contents, dynamic compression and dynamic splitting tests were carried out by using a split Hopkinson pressure bar (SHPB) device. The results show the followings. (1) Both the static and dynamic strengths are enhanced under compression and tension conditions by basalt fiber. At high strain rates, the dynamic increase in compressive strength is small, and the dynamic increase in the splitting strength is large. (2) The compressive and splitting strengths of the BF-ECCs increase significantly with increasing strain rate, both of which can use a dynamic increase factor (DIF) to reflect the increase in dynamic strength, but the strain rate sensitivity of the splitting strength is stronger than that of the compressive strength. (3) According to the test, the CEB-FIP equation (2010) of ordinary cement concrete rate sensitivity is not applicable to the BF-ECCs.
- basalt fibers,
- BF-ECC,
- static compression,
- static stretching,
- impact compression,
- dynamic splitting

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References(23)

References

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