Dynamic compressive mechanical behaviour and modelling of basalt–polypropylene fibre-reinforced concrete

• Autorzy: Fu, Q. , Niu, D. , Zhang, J. , Huang, D. , Wang, Y. , Hong, M. , Zhang, L.
• Języki publikacji: EN

Abstrakty

EN

Dynamic compressive behaviour of basalt–polypropylene fibre-reinforced concrete (BPFRC) was experimentally investigated using a 75-mm-diameter split-Hopkinson pressure bar. The results showed that the addition of basalt fibre (BF) and polypropylene fibre (PF) is effective at improving the impact-resistance behaviour of concrete. The dynamic compressive strength, critical strain, and energy absorption capacity of BPFRC increased with increasing strain rate. At strain rates of 20–140 s−1, the addition of BF and PF significantly increased the dynamic compressive strength, critical strain, and energy absorption capacity of concrete. The dynamic increase factor of BPFRC increased linearly with the decimal logarithm of strain rate. The hybrid addition of BF and PF significantly improved the strain rate effect of the dynamic compressive strength. The strengthening and toughening mechanisms of BF and PF are discussed in detail. The proposed dynamic damage constitutive model can be used to accurately describe the dynamic stress–strain relationship of BPFRC.

Słowa kluczowe

PL

ściskanie; włókno bazaltowe; włókno polipropylenowe; odkształcenia

EN

dynamic compressive mechanical behaviour; basalt fibre; polypropylene fibre; strain rate effect; dynamic damage constitutive model

• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. 18, no. 3
• Strony: 914--927
• Opis fizyczny: Bibliogr. 39 poz., rys., tab., wykr.

Twórcy

autor

Fu, Q.

• Department of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China,

autor

Niu, D.

• Department of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China,

autor

Zhang, J.

• Department of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China

autor

Huang, D.

• Department of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China

autor

Wang, Y.

• College of Materials and Mineral Resources, Xi'an University of Architecture and Technology, Xi'an 710055, PR China

autor

Hong, M.

• Department of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China

autor

Zhang, L.

• Department of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)

Identyfikatory

DOI

10.1016/j.acme.2018.01.016