I am researching several methods of adding graphene and carbon nanotubes to concrete in order to increase the strength. Many papers have said that they added graphene, but no real descriptors of the exact type are listed.
Which are best? What sizes or specifications would you use if you were buying the graphene off the shelf? Are carbon nanotubes better to use? If so, why?
Article Assessment of the Carcinogenicity of Carbon Nanotubes in the...
If we're lucky, it turns out that it's not that bad actually, but I don't see a big perspective for that.
Your point is quite valid James Gibson . We wrote a review article highlighting the nomenclature discrepancy when it comes to adding CNG/MLG/graphene and graphene oxide (GO). Performance in concrete with respect to aspect ratios and thicknesses of the nanomaterial is discussed, and problems incorporating in concrete, if any. Here you go: Article The mechanics of carbon-based nanomaterials as cement reinfo...
I would suggest highly oxidized GO, as that was my research. Synthesized in house, using Chen et al.'s improved Hummer's method (Article Water-Enhanced Oxidation of Graphite to Graphene Oxide with ...
) .GO is relatively easy to disperse, which is why I recommend it. We have explained the different GOs used in concrete in detail, if you would like an in-depth look: Article Graphene oxide’s regenerative acidity and its effects on the...
The selection of graphene or carbon nanotubes for concrete should be based on a thorough understanding of the desired properties and the compatibility with the concrete matrix.
Graphene oxide is often used to enhance the mechanical properties, such as compressive and flexural strength, of concrete. It can also improve the durability and resistance to cracking and corrosion. Carbon nanotubes, due to their high aspect ratio and strength, can provide reinforcement and improve the tensile strength and ductility of concrete.
M. Ahmadi Again, for health reasons: do not put nanotubes in anything that gets suscepted to open friction or drilling.
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Physical Phenomena
- Luminescence
- Fluorescence