scholarly journals Mechanical properties of highly dispersed carbon nanotubes reinforced cement-based materials

2019 ◽  
Vol 569 ◽  
pp. 022025
Author(s):  
Jie Qin ◽  
Jian Qu ◽  
Yanwen Li ◽  
Bo Wang ◽  
Zhipeng Sun ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Cement Based Materials ◽  
Highly Dispersed ◽  
Reinforced Cement

Surface Functionalization of Carbon Nanotubes and Compressive Strength of MWCNTs-OPC

2012 ◽  
Vol 511 ◽  
pp. 171-174 ◽  
Author(s):  
Fu Xia Wang ◽  
Yu Ying Wang
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Surface Functionalization ◽  
High Performance ◽  
Multiwall Carbon Nanotubes ◽  
Reinforcing Effect ◽  
Cement Based Materials ◽  
Highly Dispersed ◽  
Functionalization Of Carbon Nanotubes ◽  
Multiwall Carbon

Due to their remarkable mechanical properties, carbon nanotubes (CNTs) are considered to be one of the most promising reinforcing materials for the next generation of high-performance cementitious composites. However, the major problem is the highly attractive van der Waals forces between CNTs, which create coherent agglomerates that prove difficult to disperse in cement based materials and reduce the fluidity of the fresh mixture. In this study, the reinforcing effect of highly dispersed multiwall carbon nanotubes (MWCNTs) at ratios of 0.05, 0.1, 0.15， 0.2 and 0.25wt.% of cement has been investigated. The results show that small amount of effectively dispersed MWCNTs can significantly increase the strength of the cementitious

Highly dispersed carbon nanotube reinforced cement based materials

2010 ◽  
Vol 40 (7) ◽  
pp. 1052-1059 ◽  
Author(s):  
Maria S. Konsta-Gdoutos ◽  
Zoi S. Metaxa ◽  
Surendra P. Shah
Keyword(s):  
Carbon Nanotube ◽  
Cement Based Materials ◽  
Highly Dispersed ◽  
Reinforced Cement

Research Progress on Carbon Nanotubes Reinforced Cement-Based Materials

2014 ◽  
Vol 629-630 ◽  
pp. 487-493
Author(s):  
Bao Min Wang ◽  
Shuai Liu ◽  
Yu Han
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Weight Fraction ◽  
Research Field ◽  
Research Progress ◽  
Cement Matrix ◽  
Cement Composites ◽  
Mechanical Stirring ◽  
Cement Based Materials ◽  
Reinforced Cement

For their remarkable properties, carbon nanotubes (CNTs) are considered as promising candidate for next generation of high performance and functional cement-based composites in 21st century. The paper focuses on the dispersibility, mechanical property, durability, conductivity and piezoresistivity properties of CNTs reinforced cement-based materials. A homogenous CNTs-suspension was obtained using the method which combined ultrasonic processing with mechanical stirring, electric-field introduction and surfactant decoration. The low weight fraction of CNTs improved the mechanical properties of CNTs/cement composites. The compressive strength and toughness were correspondingly improved. The added CNTs improved the sulfate attack resistance and impermeability properties of the prepared CNTs/cement mixes. Meanwhile, the added CNTs improved the pressure-sensitive, conductivity and electromagnetic absorption properties of the prepared mixes, which laid a foundation of multi-functional concrete and structure. It concludes that the key issue for CNTs/cement composites is the dispersibility and the compatibility of CNTs in cement matrix. The solving solutions are put forward. In the meantime, the further research prospects in this research field are forecasted.

Effect of carbon nanotubes/clay hybrid composite on mechanical properties, hydration heat and thermal analysis of cement-based materials

2022 ◽  
Vol 320 ◽  
pp. 126212
Author(s):  
Supakporn Aodkeng ◽  
Sakprayut Sinthupinyo ◽  
Busaya Chamnankid ◽  
Wilasinee Hanpongpun ◽  
Arnon Chaipanich
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Thermal Analysis ◽  
Hybrid Composite ◽  
Hydration Heat ◽  
Cement Based Materials

Multifunctionalities of Nanocarbon Materials Filled Cement-Based Composites

2014 ◽  
Vol 809-810 ◽  
pp. 144-154
Author(s):  
Li Qing Zhang ◽  
Su Fen Dong ◽  
Yun Yang Wang ◽  
Bao Guo Han
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Carbon Nanotubes ◽  
Thermal Properties ◽  
Electrical Properties ◽  
Electromagnetic Properties ◽  
Multifunctional Composites ◽  
Cement Based Materials ◽  
Improvement Effect ◽  
Nanocarbon Materials

Materials combined with a small amount of nanomaterials offer new possibilities in developing of multifunctional composites. Nanocarbon materials (NCMs) such as carbon nanotubes/ nanofibres, and nanographite platelets have excellent intrinsic physical properties and improvement effect to matrix materials at nanoscale. They are promising fillers for improving the mechanical property and durability of cement-based materials and introducing functional properties to cement-based materials. This paper presents a comprehensive introduction about multifuntionlities of NCMs filled cement-based composites including mechanical properties, durability, electrical properties, thermal properties, electromagnetic properties, sensing property and etc.

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