Spectroscopic Studies of the Influence of Multi-Walled Carbon Nanotubes on the Hydration of Tricalcium Silicate and Microstructure of Calcium Silicate Hydrate Phases

Weitzel, B.; Kowald, Torsten; Müller, Torsten; Spiess, Hans Wolfgang; Trettin, H. F. Reinhard

doi:10.1007/978-3-642-27682-8_92

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…This particular superplasticizer has been scienti cally demonstrated to effectively disperse CNTs [20,21]. The ensuing solution underwent sonication for a duration of 15 minutes utilizing a Fritish 450 Soni er Analog Cell Distributor [22]. Solutions with concentrations of 0.1, 0.3, 0.5, 0.7, and 0.9-wt.…”

Section: Dispersion Of Mwcntsmentioning

confidence: 99%

Preparation of thermally stable cementitious mortar incorporating multiwall carbon Nano- tube and carbon waste from aluminium production industry

Khater,

Gharieb

2024

Preprint

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The main purpose of this paper is to carry out a comparative investigation into the performance of multiwall carbon nanotube (MWCNT) and carbon wastes that are derived from the production of aluminum in the creation of thermally stable cementitious mortar. In Egypt, carbon waste is produced as a by-product of the aluminum industry and it is identified by its nano-scale dimensions. The cement mortar is produced by using a combination of blended cement (CEMIII) and sand that passes through a 1 mm sieve, with different ratios of both MWCNT and C-waste ranging from 0.1% to 0.7%. The addition of MWCNT and c-waste leads to an enhancement in compressive strength values up to 0.1%, resulting in values of approximately 70MPa and 75 MPa at 90 days, respectively. The findings validate the superior physical and mechanical properties of c-waste as compared to MWCNT, in addition to its lower production cost in comparison to precious MWCNT. The cement mortar demonstrates increased resistance to high temperatures when exposed to firing temperatures up to 700 degrees, achieving measurements of about 60 MPa and 63 MPa for MWCNT and carbon waste, respectively. The results also confirm the higher thermal stability of carbon waste when compared to MWCNT, despite both exceeding the limits specified for thermal resistance in mortar, which is 60 MPa.

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Section: Dispersion Of Mwcntsmentioning

confidence: 99%

Preparation of thermally stable cementitious mortar incorporating multiwall carbon Nano- tube and carbon waste from aluminium production industry

Khater,

Gharieb

2024

Preprint

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show abstract

“…One possibility is the substitution by suitable latent hydraulic materials (i.e., activator-based material that cured chemically with water in water) like fly ash or ground granulated blastfurnace slag (GGBS). 3 Another way is the use of high or ultrahigh performance concrete, which contain specific fillers or functional additives like hydraulic micrometresized silica, 4 nanostructured silica, [4][5][6][7][8][9][10][11] carbon nanotubes 12,13 or carbon fibres. 14 During the lifetime of concrete, the material ages due to temperature changes and attack of aggressive media like acid rain, saline solutions from de-icing salt, sewage or carbon dioxide and sulphur oxide as gaseous pollutants.…”

Section: Introductionmentioning

confidence: 99%