Damping Property of Cement Mortar Incorporating Damping Aggregate

Tian, Ye; Lu, Dong; Zhou, Jianwei; Yang, Yuxuan; Wang, Zhenjun

doi:10.3390/ma13030792

Cited by 13 publications

(6 citation statements)

References 29 publications

(59 reference statements)

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“…Therefore, the incorporation of rubber powder into the CA mortar can enhance its damping ability for good energy absorption and vibration dissipation. Similar conclusions have been made in the related literature [51], where it was documented that the incorporation of rubber powder or fiber can ameliorate the damping ability of cement mortar; nevertheless, the incorporation of fiber was found to be more efficient than RP in enhancing the damping ratio of cement mortar [51].…”

Section: Damping Performance Of Ca Mortarsupporting

confidence: 86%

A Review on Cement Asphalt Emulsion Mortar Composites, Structural Development, and Performance

et al. 2021

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The use of cement emulsified asphalt mortar (CA mortar) in the track structure of high-speed speed railways has been gaining considerations by many researchers due to its coupled merits of the strength of cement as well as the flexibility of asphalt material. The asphalt to cement ratio (A/C) and the compatibility among constituent materials are crucial to the properties of CA mortar. To improve the performance properties and application of CA mortar, it is imperative to have a broad understanding of the composition mechanisms and compatibility between constituent materials. This paper summarizes interesting research outcomes related to the composition and properties of CA mortar. The consumption of water by cement promotes the breakdown of emulsified asphalt, likewise, the adsorption of asphalt droplets on the surface of cement grains retards the hydration process of cement. An appropriate A/C is required for the cement hydration rate to match the speed of demulsification of asphalt emulsion. Depending on the type and properties for which the CA mortar is designed to possess, the A/C ranges from 0.2 to 0.6 for type 1 (CAM I), and 0.6 to 1.2 for type 2 (CAM II). This paper also discusses measures taken to improve performance properties, compatibility, the interaction between constituent materials of CA mortar, and the use of additives as a partial replacement of cement in CA mortar production. The current review also suggests areas of interest for future research studies. This paper is useful to those who aim to understand or study the composition mechanisms and performance properties of CA mortar.

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Section: Damping Performance Of Ca Mortarsupporting

confidence: 86%

A Review on Cement Asphalt Emulsion Mortar Composites, Structural Development, and Performance

et al. 2021

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“…Damping of concrete at low frequencies has always been an important topic [113]. A recent report [114] attempted to increase damping by adding polymers and various aggregates, and also provided a baseline damping factor of 0.038 for a mortar sample. This result is comparable to test C1.…”

Section: Attenuation Behavior Of Ceramics and Rocksmentioning

confidence: 99%

A Comprehensive Report on Ultrasonic Attenuation of Engineering Materials, Including Metals, Ceramics, Polymers, Fiber-Reinforced Composites, Wood, and Rocks

Ono

2020

Applied Sciences

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In this paper, ultrasonic attenuation of engineering materials is evaluated comprehensively, covering metals, ceramics, polymers, fiber-reinforced composites, wood, and rocks. After verifying two reliable experimental methods, 336 measurements are conducted and their results are tabulated. Attenuation behavior is determined over broadband spectra, extending up to 15 MHz in low attenuating materials. The attenuation spectra are characterized in combination with four power law terms, with many showing linear frequency dependence, with or without Rayleigh scattering. Dislocation damping effects are re-evaluated and a new mechanism is proposed to explain some of the linear frequency dependencies. Additionally, quadratic and cubic dependencies due to Datta–Kinra scattering and Biwa scattering, respectively, are used for some materials to construct model relations. From many test results, some previously hidden behaviors emerged upon data evaluation. Effects of cold working, tempering, and annealing are complex and sometimes contradictory. Comparison to available literature was attempted for some, but most often prior data were unavailable. This collection of new attenuation data will be of value in materials selection and in designing structural health monitoring and non-destructive inspection protocols.

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“…The ITP has reactivity after grinding, which has the potential to react under the stimulation of CH and gypsum [ 17 ]. Moreover, the unreacted particles form a good grade and contribute to the dense structure [ 18 ], which provides excellent strength and helps to improve the concrete strength. Thus, the concrete incorporating 15% ITP under steaming curing at 45 °C obtained the highest early-age compressive strength ( Figure 3 a).…”

Section: Resultsmentioning

confidence: 99%

“…Iron tailing powder (ITP), as a product of grinding iron tailings, has pozzolanic potential and accelerates the hydration of cement [ 17 ]. Furthermore, the unreacted particles can form a good grade, contributing to form the dense structure and to improving the mechanical strength of concrete [ 18 ]. Therefore, it is an ideal alternative to cementitious materials for concrete production.…”

Section: Introductionmentioning

confidence: 99%

Effects of Curing Conditions on the MECHANICAL and Microstructural Properties of Ultra-High-Performance Concrete (UHPC) Incorporating Iron Tailing Powder

Zhong

Yan

et al. 2021

Materials

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It has been reported that iron tailing powder (ITP) has the potential to partially replace cement to prepare ultra-high-performance concrete (UHPC). However, the reactivity of ITP particles in concrete largely depends on the curing method. This study investigates the effects of curing conditions on the mechanical and microstructural properties of UHPC containing ITP. To achieve this objective, three research tasks are conducted, including (1) preparing seven concrete formulations by introducing ITP; (2) characterizing their mechanical performance under different curing regimes; and (3) analyzing their microstructure by XRD patterns, FTIR analysis, and SEM observation. The experimental results show that there is an optimum ITP dosage (15%) for their application. The concrete with 15% ITP under standard curing obtains 94.3 MPa at 7 days, their early-age strength could be even further increased by ~30% (warm-water curing) and ~35% (steamed curing). The steam curing regime stimulates the activity of ITP and refines the microstructure. This study demonstrates the potential of replacing Portland cement with ITP in UHPC production.

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Damping Property of Cement Mortar Incorporating Damping Aggregate

Cited by 13 publications

References 29 publications

A Review on Cement Asphalt Emulsion Mortar Composites, Structural Development, and Performance

A Review on Cement Asphalt Emulsion Mortar Composites, Structural Development, and Performance

A Comprehensive Report on Ultrasonic Attenuation of Engineering Materials, Including Metals, Ceramics, Polymers, Fiber-Reinforced Composites, Wood, and Rocks

Effects of Curing Conditions on the MECHANICAL and Microstructural Properties of Ultra-High-Performance Concrete (UHPC) Incorporating Iron Tailing Powder

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