Analysis of Fractal and Energy Characteristics of Impact Crushing of Carbon Nanotube Concrete under Freeze-Thaw

Abstract

To investigate the influence of dynamic loading and freeze-thaw cycles (F-T) on the energy evolution and damage characteristics of multi-walled carbon nanotubes (MWCNTs) reinforced concrete specimens, impact compression tests were conducted. These tests used a split-Hopkinson pressure bar (SHPB) apparatus with a diameter of 50 mm and were performed on MWCNTs concrete samples that had undergone different numbers of F-T cycles. The impact pressures applied were 0.40, 0.50, and 0.60 MPa, respectively. The effects of impact pressure and F-T number on the fractal dimension (D_f) of the fractured blocks and absorbed energy (W_s) of MWCNTs concrete were investigated. The results indicate that the D_f of the fractured blocks in MWCNTs concrete increases with the increase of impact pressure and F-T number, and under the same experimental conditions, the D_f of MWCNTs concrete is lower than that of ordinary concrete. The variation in W_s is different: the W_s of MWCNTs concrete under impact load increases with increasing impact pressure but decreases with increasing F-T number. Additionally, under the same experimental conditions, the W_s of MWCNTs concrete is greater than that of ordinary concrete. The incorporation of MWCNTs significantly enhances the impact resistance of the concrete.

References

[1] HuangX, WangT, PangJ, et al.. Experimental Study on the Effect of Freeze-Thaw Cycles on the Apparent and Mechanical Properties of Rubber Concrete Under Chloride Environment[J]. Arabian Journal for Science and Engineering, 2022, 47: 4133-4153

[2] MuraliG, VinodhaE. Experimental and Analytical Study of Impact Failure Strength of Steel Hybrid Fibre Reinforced Concrete Subjected to Freezing and Thawing Cycles[J]. Arabian Journal for Science and Engineering, 2018, 43: 5487-5497

[3] CarriçoA, BogasJ A, HawreenA, et al.. Durability of Multi-Walled Carbon Nanotube Reinforced Concrete[J]. Construction and Building Materials, 2018, 164: 121-133

[4] GaoF, TianW, WangZ, et al.. Effect of Diameter of Multi-Walled Carbon Nanotubes on Mechanical Properties and Microstructure of the Cement-Based Materials[J]. Construction and Building Materials, 2020, 260: 120 452

[5] CuiH, YangS, MemonS A. Development of Carbon Nanotube Modified Cement Paste With Microencapsulated Phase-Change Material for Structural–Functional Integrated Application[J]. International Journal of Molecular Sciences, 2015, 16(4): 8027-8039

[6] StynoskiP, MondalP, MarshC. Effects of Silica Additives on Fracture Properties of Carbon Nanotube and Carbon Fiber Reinforced Portland Cement Mortar[J]. Cement and Concrete Composites, 2015, 55: 232-240

[7] TorabianI F, LiW, RedaelliE. Dispersion of Multi-Walled Carbon Nanotubes and Its Effects on the Properties of Cement Composites[J]. Cement and Concrete Composites, 2016, 74: 154-163

[8] ZhengB, ChenJ, ShiT, et al.. Fracture Properties of Multi-Walled Carbon Nanotubes Reinforced Concrete[J]. Journal of The Chinese Ceramic Society, 2021, 49(11): 2502-2508(in Chinses)

[9] RamezaniM, DehghaniA, SherifM M. Carbon Nanotube Reinforced Cementitious Composites: A Comprehensive Review[J]. Construction and Building Materials, 2022, 315: 125 100

[10] ShiT, ZhaoQ, HuZ, et al.. Chloride Ion Penetration Resistance of Multi-Walled Carbon Nanotubes Reinforced Concrete[J]. Acta Materiae Compositae Sinica, 2022, 39(10): 4769-4777(in Chinese)

[11] TianW, GaoF, HeL. Variation of Mechanical Property and Meso Structure of MWCNTs Concrete Exposed to High Temperature[J]. Journal of Zhejiang University (Engineering Science), 2022, 56(11): 2280-2289(in Chinese)

[12] YakovlevG, PervushinG, MaevaI, et al.. Modification of Construction Materials With Multi-Walled Carbon Nanotubes[J]. Procedia Engineering, 2013, 57: 407-413

[13] WangX, RheeI, WangY, et al.. Compressive Strength, Chloride Permeability, and Freeze-Thaw Resistance of MWNT Concretes Under Different Chemical Treatments[J]. The Scientific World Journal, 2014, 2014: 1-8

[14] LiW-W, JiW-M, WangY-C, et al.. Investigation on the Mechanical Properties of a Cement-Based Material Containing Carbon Nanotube Under Drying and Freeze-Thaw Conditions[J]. Materials, 2015, 8(12): 8780-8792

[15] ChengX, TianW, GaoJ, et al.. Grey Entropy Analysis of Strength and Void Structure of Carbon Nanotubes Concrete Under the Coupling of Sulfate Attack and Freeze-Thaw Cycles[J]. Construction and Building Materials, 2022, 358: 129 462

[16] SobolkinaA, MechtcherineV, KhavrusV, et al.. Dispersion of Carbon Nanotubes and Its Influence on the Mechanical Properties of the Cement Matrix[J]. Cement and Concrete Composites, 2012, 34(10): 1104-1113

[17] RamezaniM, KimY H, SunZ, et al.. Influence of Carbon Nanotubes on Properties of Cement Mortars Subjected to Alkali-Silica Reaction[J]. Cement and Concrete Composites, 2022, 131: 104 596

[18] ChengX, TianW, GaoJ, et al.. Effect of Multiwalled Carbon Nanotube Size on Electrical Properties of Cement Mortar Composites[J]. Magazine of Concrete Research, 2023, 75(12): 595-606

[19] China Architecture & Building PressStandard for Test Methods of Long-Term Performanceand Durability of Ordinary Concrete[S], 2009(in Chinese)

[20] RamezaniM, KimY H, SunZ. Modeling the Mechanical Properties of Cementitious Materials Containing Cnts[J]. Cement and Concrete Composites, 2019, 104: 103 347

[21] XuS, LiuJ, LiQ. Mechanical Properties and Microstructure of Multi-Walled Carbon Nanotube-Reinforced Cement Paste[J]. Construction and Building Materials, 2015, 76: 16-23

[22] MohsenM O, TahaR, AbuT A, et al.. Optimum Carbon Nanotubes’ Content for Improving Flexural and Compressive Strength of Cement Paste[J]. Construction and Building Materials, 2017, 150: 395-403

[23] RamezaniM, KimY H, SunZ. Elastic Modulus Formulation of Cementitious Materials Incorporating Carbon Nanotubes: Probabilistic Approach[J]. Construction and Building Materials, 2021, 274: 122 092

RIGHTS & PERMISSIONS

Wuhan University of Technology and Springer-Verlag GmbH Germany, Part of Springer Nature