A novel cement-based hybrid material

By Albert G. Nasibulin, S. Shandakov, Larisa I. Nasibulina, A. Ćwirzeń, P. R. Mudimela, K. Habermehl-Cwirzen, D. A. Grishin, Yu. V. Gavrilov, J. Malm, U. Tapper and 4 more. 2009

135 citations recorded by the source corpus.

Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) are known to possess exceptional tensile strength, elastic modulus and electrical and thermal conductivity. They are promising candidates for the next-generation high-performance structural and multi-functional composite materials. However, one of the largest obstacles to creating strong, electrically or thermally conductive CNT/CNF composites is the difficulty of getting a good dispersion of the carbon nanomaterials in a matrix. Typically, time-consuming steps of purification and functionalization of the carbon nanomaterial are required. We propose a new approach to grow CNTs/CNFs directly on the surface of matrix particles. As the matrix we selected cement, the most important construction material. We synthesized in a simple one-step process a novel cement hybrid material (CHM), wherein CNTs and CNFs are attached to the cement particles. The CHM has been proven to increase 2 times the compressive strength and 40 times the electrical conductivity of the hardened paste, i.e. concrete without sand.

Subfields: Materials Chemistry, Pollution

View Paper: https://www.semanticscholar.org/paper/62c1a4d6bcdbecc3688b58f79ecb9884dfe95129

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Materials Chemistry

In Pollution

Citations in the corpus

Carbon nanomaterials: production, impact on plant development, agricultural and environmental applications (2016, background): “growing CNTs in a cement matrix had double the compressive strength of the original [39].”
Distribution of Carbon Nanofibers and Nanotubes in Cementitious Composites (2010, methodology): “(23) to grow CNF–CNT directly on cement particles, although very promising, is novel and its feasibility issues are not well studied.”
On the aspect ratio effect of multi-walled carbon nanotube reinforcements on the mechanical properties of cementitious nanocomposites (2012, background): “Other researchers tried a novel approach by growing CNTs on the surface of the cement particles directly in order to enhance the dispersion and reduce the time and efforts of mixing and dispersing the CNTs within the cement paste [14,15].”
The future of construction materials research and the seventh UN Millennium Development Goal: A few insights (2013, background): “Previous investigations [40] reported an increase by 40 times in the electric conductivity of cement pastes with nanoparticles, which means a high sensing ability potential.”
A review of dispersion of nanoparticles in cementitious matrices: Nanoparticle geometry perspective (2017, methodology): “For instance, Nasibulin et al. [69] grew CNTs/CNFs directly on the surface of cement particles by a tailor-made and timeless CVD method which resulted in a much stronger cement hybrid material, as shown in Figure 3.”
Mechanical Properties of Nanocomposite Cement Incorporating Surface-Treated and Untreated Carbon Nanotubes and Carbon Nanofibers (2012, background): “Another possible reason for this observed degradation, proposed by Sanchez and Borwankar (2010), is that preferential leaching and decalcification at the interface of the fiber causes debonding.”