A critical review of carbon materials engineered electrically conductive cement concrete and its potential applications

Lu, Dong; Leng, Zhen; Wang, Daiyu; Huo, Yanlin

doi:10.1080/19475411.2023.2199703

Cited by 25 publications

(5 citation statements)

References 176 publications

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“…In this study, P•O42.5 ordinary Portland cement (OPC) from Yatai Group Harbin Cement Company (Harbin, China) and the S95 grade ground granulated blast furnace slag (GGBFS) from a local processing plant (Harbin, China) were used as binders, and the density was 3.15 g/cm 3 and 2.90 g/cm 3 , respectively. The chemical composition of OPC and GGBFS is given in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…The sustainability of concrete, the second most consumed material on the earth, is of paramount importance [ 1 , 2 , 3 , 4 ]. Rapid urbanization [ 5 ] and population growth [ 6 ] are factors increasing the demand for new infrastructure and housing, further exacerbating the environmental impact of the construction industry [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

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Mass GGBFS Concrete Mixed with Recycled Aggregates as Alkali-Active Substances: Workability, Temperature History and Strength

Huo

Huang²,

Han

et al. 2023

Materials

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This study provides the results of an experiment on the possibility of using high-volume ground granulated blast furnace slag (HVGGBFS)-based concrete as mass concrete. In addition to the control concrete, the total weight of the binder was 75% ground granulated blast furnace slag (GGBFS) and 25% ordinary Portland cement (OPC). For the aggregates, both natural and recycled aggregates were used. Three specimens with dimensions of 800 mm × 800 mm × 800 mm were prepared to simulate mass concrete. The workability, temperature aging and strength of the mass concrete were tested. The test results showed that utilizing HVGGBFS concrete as mass concrete can significantly reduce the heat of hydration due to the low heat of hydration of GGBFS, while the heat of hydration of GGBFS and recycled aggregate combination is 11.2% higher than normal concrete, with a slump that is 31.3% lower than that of plain concrete. The results also showed that the use of recycled aggregates in HVGGBFS concrete can significantly reduce workability. However, the compressive strength is higher than when natural aggregates are used due to the alkali activation effect caused by the recycled aggregates. The compressive strength at 7 and 28 days increased by 33.7% and 16.3%, respectively.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mass GGBFS Concrete Mixed with Recycled Aggregates as Alkali-Active Substances: Workability, Temperature History and Strength

Huo

Huang²,

Han

et al. 2023

Materials

Self Cite

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“…According to previous studies [82,[90][91][92][93], the admixture of the higher replacement rate of RCA in concrete results in lower compressive strength, mainly due to the increase in the amount of the adhered mortar, making the ITZ region weaker [86,[94][95][96][97]. Typically, lower amounts of adhered mortar and higher densities of RCA contribute to the enhancement of the strength of RAC, which theoretically depends on the efficiency of the removal of the adhered mortar from the RCA surface [98,99].…”

Section: Mechanical Strengthsmentioning

confidence: 97%

Performance Improvement of Recycled Concrete Aggregates and Their Potential Applications in Infrastructure: A Review

Han

Zhao²,

et al. 2023

Buildings

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In the construction industry, natural aggregates (NA) can be replaced by recycled concrete aggregates (RCA), which can address the issue of construction-waste disposal and resolve the dilemma between demand and supply. This paper aims to systematically review the modification of RCA techniques and their application in producing recycled aggregate concrete (RAC). First, the pretreatment approaches for enhancing the properties of RCA are introduced. Next, the improved efficiency of these approaches and their influences on the workability, mechanical strengths, and permeability of RAC are analyzed and discussed. Subsequently, the effectiveness of different techniques and their cost/environmental impact are compared. Finally, some case studies of the application of RCA in infrastructure are presented, and the remaining challenges and perspectives are discussed. The results of this review work can extend the knowledge of RCA and RAC, as well as serving as a source of inspiration for further studies.

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“…However, field applications of self-sensing cementitious materials are limited. One of the limiting factor, other than the high relative cost of the conductive fillers, is the difficulty in achieving uniform dispersion of the filler over large-scale volumes [38]. Micro-and nano-sized carbon inclusions (e.g.…”

Section: Introductionmentioning

confidence: 99%

3D printed self-sensing cementitious composites using graphite and carbon microfibers

Liu,

Laflamme,

D’Alessandro

et al. 2024

Meas. Sci. Technol.

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Cementitious materials possessing self-sensing properties conferred through the incorporation of conductive fillers have attracted significant interest in the research community due to their potential application to structural health monitoring (SHM) of civil infrastructure. A key advantage of cementitious sensors is that they can be organically embedded within cementitious structures to provide extremely robust monitoring capabilities. Of interest to this paper, the integration of cementitious sensors could be critical in empowering the 3D printing of cementitious composites by enabling real-time monitoring of additive manufacturing. Such integration could be achieved by 3D printing self-sensing cementitious nodes during the fabrication process. 3D printed self-sensing cementitious sensors could also be topologically engineered to achieve new opportunities in sensing of existing and new concrete and other cementitious structures. This paper presents one of the earliest studies, if not the first, on the 3D printing of self-sensing functionalized composites. The self-sensing cementitious composite sensors are fabricated using a cementitious matrix doped with graphite (G) and carbon microfibers. Various mixtures are studied, in particular G-only, G with milled carbon microfibers (MCMF), G with chopped carbon microfibers (CCMF), and G with MCMF and CCMF. A study of the percolation curves reveals that it is possible to attain electrical percolation using these conductive particles to create strain-sensitive sensors by leveraging the boosted piezoresistive effect. A study of strain sensing performance conducted on various specimens fabricated using different mixture types reveals the optimal concentration of dopants under different types of conductive particles. It is found that the optimal mixture that yields optimal performance also improves the Young’s Modulus of the specimens by 42.2% compared to cement-only specimens. Overall, this optimal mixture composed of 10% weight-to-cement G (10 wt% G), 0.250 wt% MCMF, and 0.125 wt% CCMF yielded a static gauge factor of 622, a resolution of 167 με, an accuracy of 19.24 με, and a Young’s Modulus of 798 MPa.

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A critical review of carbon materials engineered electrically conductive cement concrete and its potential applications

Cited by 25 publications

References 176 publications

Mass GGBFS Concrete Mixed with Recycled Aggregates as Alkali-Active Substances: Workability, Temperature History and Strength

Mass GGBFS Concrete Mixed with Recycled Aggregates as Alkali-Active Substances: Workability, Temperature History and Strength

Performance Improvement of Recycled Concrete Aggregates and Their Potential Applications in Infrastructure: A Review

3D printed self-sensing cementitious composites using graphite and carbon microfibers

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