Damping Performances of Carbon Nanotube Reinforced Cement Composite

Luo, Jianlin; Duan, Zhongdong; Xian, Guijun; Li, Qiuyi; Zhao, Tong

doi:10.1080/15376494.2012.736052

Cited by 45 publications

(24 citation statements)

References 22 publications

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“…They observed that with the addition of 2.0% MWCNT, the fundamental frequency and damping ratio of the concrete beam increase around 13% and 60%, respectively. They also deduced from the force vibration frequency response functions (FRFs) (as shown in Figures 29 and 30) that the FRFs of the MWCNT concrete beams are wider and steadily become wider with increased MWCNT-to-cement ratio (Luo et al, 2013). Skripki unas et al investigated the damping properties of hardened concrete with rubber waste additives.…”

Section: Self-damping Concrete and Structuresmentioning

confidence: 99%

“…Compared with the conventional concrete, selfdamping concrete possesses the advantages of vibration reduction and hazard mitigation of bridges, buildings, and other civil infrastructure systems (Fu and Chung, 1996). However, there are also many aspects needed to be improved, for example, storage modulus, chemical stability, and durability of the resultant damping systems (Luo et al, 2013).…”

Section: Self-damping Concrete and Structuresmentioning

confidence: 99%

See 1 more Smart Citation

Smart concretes and structures: A review

Han

Wang

Dong

et al. 2015

Journal of Intelligent Material Systems and Structures

214

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Smart concretes and structures are intelligent systems that have properties different from normal concrete, such as selfsensing and self-healing properties, or have the ability to react upon an external stimulus, such as stress and temperature. The ''smartness'' of concrete and structures is achieved through material composition design, special processing, introduction of other functional components, or modification of the microstructure. They are designed to meet specific requirements through tailored properties for improving serviceability, safety, reliability, longevity, and durability of the infrastructures and reducing the life-cycle costs of the infrastructures. This article reviews the recent researches of various smart concretes and structures, with attentions to their principles, fabrication, and properties. Future challenges in the development and applications of smart concretes and structures are also discussed.

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Section: Self-damping Concrete and Structuresmentioning

confidence: 99%

Section: Self-damping Concrete and Structuresmentioning

confidence: 99%

Smart concretes and structures: A review

Han

Wang

Dong

et al. 2015

Journal of Intelligent Material Systems and Structures

214

View full text Add to dashboard Cite

show abstract

“…In order to improve the resilience and strength of polymers, extensive use of different types of filler materials have been considered. Nanometer‐size fillers having large surface areas, such as nanotubes, nanorods, and nanofibers have added advantages with greater interactions at the interfaces . For example, the introduction of single‐walled CNTs (SWCNTs) into polycarbonate can activate interfacial slip at the tube‐polymer interfaces at relatively low dynamic strain levels, by raising temperature to ≈90 °C, and thus enhance the damping performance for vibration and acoustic suppression .…”

Section: Basic Concepts Of Viscoelasticitymentioning

confidence: 99%

“…Furthermore, vibration also affects the tracking and pointing characteristics and accuracy of weapon systems mounted on aircraft and land systems. Unfortunately, most of the materials are inherently poor in vibration reduction . A material that exhibits good vibration reduction along with high specific stiffness/modulus and strength becomes very vital for everyday life.…”

Section: Introductionmentioning

confidence: 99%

Vibration Damping of Carbon Nanotube Assembly Materials

et al. 2017

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Vibration reduction is of great importance in various engineering applications, and a material that exhibits good vibration damping along with high strength and modulus has become more and more vital. Owing to the superior mechanical property of carbon nanotube (CNT), new types of vibration damping material can be developed. This paper presents recent advancements, including our progresses, in the development of highdamping macroscopic CNT assembly materials, such as forests, gels, films, and fibers. In these assemblies, structural deformation of CNTs, zipping and unzipping at CNT connection nodes, strengthening and welding of the nodes, and sliding between CNTs or CNT bundles are playing important roles in determining the viscoelasticity, and elasticity as well. Towards the damping enhancement, strategies for micro-structure and interface design are also discussed.

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“…(3) The large-area zigzag clinging to cement matrix along MWCNT surface may contribute to the damping achievement to the cement paste [15], which was also shown in SEM images in this study. Besides, the interlocking of MWCNT with hydration products may lead to stress concentration around the reinforced zone, which could facilitate dislocation breakaway from weak pinning points [21,22]. diversified dislocation may also delay the formation and promote the viscoelastic retardation under the function of external forces, which would amplify the phase lag when cement composites were subjected to cyclic load.…”

Section: Analysesmentioning

confidence: 99%

Damping Property of a Cement‐Based Material Containing Carbon Nanotube

Liu

et al. 2015

Journal of Nanomaterials

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This study aimed to explore the damping property of a cement-based material with carbon nanotube (CNT). In the study, the cement composites with different contents of CNT (0 wt%, 0.033 wt%, 0.066 wt%, and 0.1 wt%) were investigated. Logarithmic Decrement method and Dynamic Mechanical Analysis (DMA) method were utilized to study the damping property of CNT/cement composite. The influences of CNT on pore size distribution and microstructure of composite were analyzed by Mercury Intrusion Porosimetry (MIP) and Scanning Electron Microscopy (SEM), respectively. The experimental results showed that CNT/cement composite presented higher flexural strength index than that of a pure cement paste. Additional CNT could improve the vibration-reduction capacity of cement paste. Furthermore, the experiments proved that CNT could bridge adjacent hydration products and support load transfer within cement matrix, which contributed to the energy dissipation during the loading process.

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Damping Performances of Carbon Nanotube Reinforced Cement Composite

Cited by 45 publications

References 22 publications

Smart concretes and structures: A review

Smart concretes and structures: A review

Vibration Damping of Carbon Nanotube Assembly Materials

Damping Property of a Cement‐Based Material Containing Carbon Nanotube

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