Effect of electrical curing application on setting time of concrete with different stress intensity

Uygunoğlu, Tayfun; Hocaoğlu, İsmail

doi:10.1016/j.conbuildmat.2017.12.036

Cited by 25 publications

(8 citation statements)

References 23 publications

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“…In response to the advantages and disadvantages of SC, a new direct electrical curing (EC) [15] method has been discovered by research scholars .EC uses fresh specimens with low resistivity [16] to generate uniform Joule heat under the current to accelerate the hydration of cement and enhance early mechanical properties. Existing studies mentioned in the literature [17] include the feasibility of EC application [18,19], field application [20], electrodes arrangement [21], curing regime [22,23], effects of hydration process and microstructure [24,25], mineral admixtures [26], durability [16,27] etc. The current mainstream research direction mainly uses Joule heating to solve the problem of winter construction at ultra-low temperatures [28][29][30][31], repair and reinforcement of building structures [32], strengthening concrete [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on the Mechanical Properties and Microstructure of Cement-Based Materials by Direct Electric Curing and Steam Curing

Yang¹,

He²,

Wang³

et al. 2021

Preprint

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Direct electric curing (EC) is a new green curing method for cement-based materials that improves the early mechanical properties via the uniform high temperature produced by Joule heating. To understand the effects of EC and steam curing (SC) on the mechanical properties and microstructure of cement-based materials, the mortar was cured at different temperature-controlled curing regimes (40°C, 60°C and 80°C). Meanwhile, mechanical properties, hydrate phase and pore structure of specimens were investigated. The energy consumption of two curing methods was compared and analyzed. The results show that the EC specimens have better and more stable growth of mechanical strength. The pore structure of EC specimen is also better than that of SC specimen at different maintenance ages. However, the hydration degree and products of samples cured by EC are similar to that SC samples. The energy consumption of EC is lower than SC. This study provides an important technical support for the EC in the production of energy-saving and high early-strength concrete precast components.

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Section: Introductionmentioning

confidence: 99%

A Comparative Study on the Mechanical Properties and Microstructure of Cement-Based Materials by Direct Electric Curing and Steam Curing

Yang¹,

He²,

Wang³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…EC uses fresh specimens with low resistivity [ 16 ] to generate uniform Joule heat under the current to accelerate the hydration of cement and enhance early mechanical properties. Existing studies mentioned in the literature [ 17 ] include the feasibility of EC application [ 18 , 19 ], field application [ 20 ], electrodes arrangement [ 21 ], curing regime [ 22 , 23 ], effects of hydration process and microstructure [ 24 , 25 ], mineral admixtures [ 26 ], durability [ 16 ], etc. The current mainstream research direction mainly uses Joule heating to solve the problem of winter construction at ultra-low temperatures [ 27 , 28 , 29 , 30 ], repair and reinforcement of building structures [ 31 ], and strengthening concrete [ 32 , 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on the Mechanical Properties and Microstructure of Cement-Based Materials by Direct Electric Curing and Steam Curing

Yang

Wang

et al. 2021

Materials

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Direct electric curing (EC) is a new green curing method for cement-based materials that improves the early mechanical properties via the uniform high temperature produced by Joule heating. To understand the effects of EC and steam curing (SC) on the mechanical properties and microstructure of cement-based materials, the mortar was cured at different temperature-controlled curing regimes (40 °C, 60 °C, and 80 °C). Meanwhile, the mechanical properties, hydrates and pore structures of the specimens were investigated. The energy consumption of the curing methods was compared. The results showed that the EC specimens had higher and more stable growth of mechanical strength. The hydration degree and products of EC samples were similar to that of SC samples. However, the pore structure of EC specimens was finer than that of SC specimens at different curing ages. Moreover, the energy consumption of EC was much lower than that of SC. This study provides an important technical support for the EC in the production of energy-saving and high early-strength concrete precast components.

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“…e work was driven by the military, important projects, mass production, and industrialization requirements for building materials to be ready rapidly and in an economical way. e performance of cement-based materials at an early time and their immediate use are the result of scientific research, engineering needs, and the industry developments [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Combined Effects of Graphite Tailings and Curing Conditions on the Early‐Age Performances of Cement Mortar

Liu

Zhang

et al. 2020

Advances in Civil Engineering

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In this study, the combined effects of different amounts of graphite tailings (GT) as a substitute for sand and three cure methods on the early-age mechanical and material performances of cement mortar have been investigated. The results can be concluded that graphite tailings and hot-water cure method can effectively improve the early strength of cement-based materials and facilitate the formation of high-density calcium silicate hydrate (C-S-H), more Ca(OH)2 (CH), and other hydration products. Simultaneously, the pore structure distribution in the cement mortar is improved to be finer. Finally, this paper explains the mechanism of GT and hot-water curing (HWC) method on early-age performances of the cement mortar through the graphic model and provides the basis for selecting the GT and HWC method on improving early performance requirements for special engineering or rapid repair engineering through the proposed comprehensive quantitative calculation model.

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Effect of electrical curing application on setting time of concrete with different stress intensity

Cited by 25 publications

References 23 publications

A Comparative Study on the Mechanical Properties and Microstructure of Cement-Based Materials by Direct Electric Curing and Steam Curing

A Comparative Study on the Mechanical Properties and Microstructure of Cement-Based Materials by Direct Electric Curing and Steam Curing

A Comparative Study on the Mechanical Properties and Microstructure of Cement-Based Materials by Direct Electric Curing and Steam Curing

Combined Effects of Graphite Tailings and Curing Conditions on the Early‐Age Performances of Cement Mortar

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