Experimental investigation on the contribution of pristine multi-walled carbon nanotubes (MWCNTs) addition to the strength enhancement of cement composites

2017 ◽  
Author(s):  
Ali Naqi ◽  
Naseem Abbas
Keyword(s):  
Carbon Nanotubes ◽  
Experimental Investigation ◽  
Cement Composites ◽  
Strength Enhancement ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Effects of CNT Doping Level and Water/Cement Ratio on the Piezoresistivity of CNTS/Cement Composites

2010 ◽  
Author(s):  
Baoguo Han ◽  
Xun Yu ◽  
Jinping Ou
Keyword(s):  
Carbon Nanotubes ◽  
Compressive Stress ◽  
Electrical Resistance ◽  
Doping Level ◽  
Experimental Results ◽  
Cement Composites ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

The carbon nanotubes (CNTs)/cement composites with different doping levels of multi-walled carbon nanotubes (MWNTs) and water/cement ratios are fabricated. By comparing the responses of electrical resistance of these CNTs/cement composites to compressive stress, the effects of MWNT doping level and water/cement ratio on the piezoresistive sensitivity of composites are investigated. Experimental results indicate that the piezoresistive sensitivities of CNTs/cement composites with 0.05 wt. %, 0.1 wt. % and 1 wt. % of MWNTs firstly increase and then decrease with the increase of CNT doping levels. The electrical resistance of CNTs/cement composites 0.6 water/cement ratio is more sensitive to compressive stress than that of composites with 0.45 water/cement ratio.

Effects of post-fire curing on the mechanical properties of cement composites containing carbon black nanoparticles and multi-walled carbon nanotubes

2021 ◽  
Vol 310 ◽  
pp. 125118
Author(s):  
Gustavo Henrique Nalon ◽  
José Carlos Lopes Ribeiro ◽  
Eduardo Nery Duarte de Araújo ◽  
Leonardo Gonçalves Pedroti ◽  
José Maria Franco de Carvalho ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Black ◽  
Cement Composites ◽  
Carbon Black Nanoparticles ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes
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