Improving mechanical properties of C-S-H from inserted carbon nanotubes

The main purpose here is to study of the effect of different types of carbon nanotubes inserted into cement. Various mechanical quantities such as bulk modulus, shear modulus, plane stress modulus, Young's modulus, elastic constants, Poisson's ratio, as well as transversal and longitudinal...

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Bibliographic Details
Published in:The Journal of physics and chemistry of solids 2017-06, Vol.105, p.72-80
Main Authors: Lushnikova, A., Zaoui, A.
Format: Article
Language:English
Subjects:
Adhesion
C-S-H/CNT structure
Carbon nanotube
Mechanical properties
Molecular dynamics
Tobermorite
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Summary:The main purpose here is to study of the effect of different types of carbon nanotubes inserted into cement. Various mechanical quantities such as bulk modulus, shear modulus, plane stress modulus, Young's modulus, elastic constants, Poisson's ratio, as well as transversal and longitudinal sound velocities of 11Å tobermorite modified by carbon nanotube (CNT), were examined using the molecular dynamics (MD) simulations. We focused on five different types of CNT with different diameters and different chirality. Results show that carbon nanotube with a diameter of 2.351Å and chirality (zig-zag)has the best adhesion with 11Å tobermorite and gives the most important change to the mechanical properties of the new composite with a critical distance of ~2Å between C-S-H and CNT.
ISSN:0022-3697
1879-2553
DOI:10.1016/j.jpcs.2017.02.010