Related Experiment Video
Updated: May 14, 2026

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures
Published on: July 2, 2012
Morphological properties of surface-treated carbon nanotubes in cement-based composites
Baomin Wang1, Yu Han, Tingting Zhang
1Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China.
Abstract:
The morphological properties of the multi-walled carbon nanotubes (MWCNTs) reinforced Portland cement composites were investigated. MWCNTs with addition of up to 0.15 wt% of cement were incorporated to Portland cement with a water to cement ratio of 0.35. The porosity and pore size distribution of the composites were measured by mercury intrusion porosimetry (MIP), and the results indicate that the cement doped with MWCNTs obtained lower porosity and concentrated pore size distribution. The microstructure was analyzed by field emission scanning electron microscopy (FE SEM) and energy dispersive spectroscopy (EDS). It is shown that MWCNTs act as bridges and networks across cracks and voids.
Related Concept Videos
Fineness of Cement
Direct...
Porosity in Cement Paste
The balance of water to cement in the mix is critical—it...
Fiber Reinforced Concrete
Hydration of Cement
Strength of Cement
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in ASTM C...
Abrasion Resistance of Concrete
One such test is the revolving disc test, where three plates...

