The Effect of Compatibility and Dimensionality of Carbon Nanofillers on Cement Composites

Alatawna, Amr; Birenboim, Matan; Nadiv, Roey; Buzaglo, Matat; Peretz-Damari, Sivan; Peled, Alva; Regev, O.; Sripada, Raghu

doi:10.1007/978-3-030-43332-1_12

Cited by 2 publications

(2 citation statements)

References 71 publications

(90 reference statements)

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“…Results showed that the incorporation of an optimum concentration of CNMs into the CSS increased the hydration products and specifically raised the amount of the CH and C-S-H gel [ 48 , 49 ]. The maximum quantity of cement hydration products was achieved by the addition of 0.1% hybrid CNT/GNP, and an excessive increase in the CNM concentration caused the reduction in hydration.…”

Section: Resultsmentioning

confidence: 99%

Development of a Novel Multifunctional Cementitious-Based Geocomposite by the Contribution of CNT and GNP

2021

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In this study, a self-sensing cementitious stabilized sand (CSS) was developed by the incorporation of hybrid carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) based on the piezoresistivity principle. For this purpose, different concentrations of CNTs and GNPs (1:1) were dispersed into the CSS, and specimens were fabricated using the standard compaction method with optimum moisture. The mechanical and microstructural, durability, and piezoresistivity performances, of CSS were investigated by various tests after 28 days of hydration. The results showed that the incorporation of 0.1%, 0.17%, and 0.24% CNT/GNP into the stabilized sand with 10% cement caused an increase in UCS of about 65%, 31%, and 14%, respectively, compared to plain CSS. An excessive increase in the CNM concentration beyond 0.24% to 0.34% reduced the UCS by around 13%. The addition of 0.1% CNMs as the optimum concentration increased the maximum dry density of the CSS as well as leading to optimum moisture reduction. Reinforcing CSS with the optimum concentration of CNT/GNP improved the hydration rate and durability of the specimens against severe climatic cycles, including freeze–thaw and wetting–drying. The addition of 0.1%, 0.17%, 0.24%, and 0.34% CNMs into the CSS resulted in gauge factors of about 123, 139, 151, and 173, respectively. However, the Raman and X-ray analysis showed the negative impacts of harsh climatic cycles on the electrical properties of the CNT/GNP and sensitivity of nano intruded CSS.

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Section: Resultsmentioning

confidence: 99%

Development of a Novel Multifunctional Cementitious-Based Geocomposite by the Contribution of CNT and GNP

2021

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“…While storage does not add value, the use of carbon fillers in concrete and for other construction purposes could meet the criteria for long-term removal of the carbon from the atmosphere. Carbon-reinforced cement could also contribute to material savings and reduced energy demand [121][122][123].…”

Section: Hydrogen Production By Methane Pyrolysismentioning

confidence: 99%

Supply Chains for Hydrogen and Carbon Dioxide for Sustainable Production of Base Chemicals

E. Müller

2024

Supply Chain - Perspectives and Applications

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In pursuit of global climate goals, the emergence of a hydrogen economy is a promising avenue, emphasizing the environmentally friendly production and versatile applications of hydrogen as an energy carrier, raw material, and cornerstone for energy-intensive sectors such as power, transportation, and especially the chemical industry. This evolution requires profound changes in the supply chain, ranging from the establishment of a robust hydrogen infrastructure to the realization of efficient transportation, distribution, and storage mechanisms. Amidst a plethora of potential hydrogen supply modalities, determining the path to a carbon-neutral hydrogen economy presents complex challenges. This chapter explores these transition complexities in the context of sustainable technology development. It also critically assesses the symbiosis between this transition and emerging carbon supply chains, particularly those aiming for closed carbon cycles, and presents a holistic vision for future sustainable frameworks in the chemical sector.

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The Effect of Compatibility and Dimensionality of Carbon Nanofillers on Cement Composites

Cited by 2 publications

References 71 publications

Development of a Novel Multifunctional Cementitious-Based Geocomposite by the Contribution of CNT and GNP

Development of a Novel Multifunctional Cementitious-Based Geocomposite by the Contribution of CNT and GNP

Supply Chains for Hydrogen and Carbon Dioxide for Sustainable Production of Base Chemicals

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