The growth of carbon nanotubes & carbon nanofibers on cement admixture particles

Abstract Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) are beneficial reinforcement materials for high performance and multifunctional cement-based composites. However, it is difficult to uniformly disperse CNTs/CNFs in cement-based composite during the composite fabrication process due to CNTs/CNFs aggregation. The in situ growth of CNTs/CNFs on cement/mineral admixture provides a new method to solve this issue. This article summarizes the methods and theories of in situ growth of CNTs/CNFs on cement/mineral admixture, including chemical vapor deposition method and microwave irradiating conductive polymers method. Properties of the cement-based composites made from the CNTs/CNFs-grown cement/mineral admixture are presented. The issues about the in situ growth of CNTs/CNFs on cement/ mineral admixture that needed to be further studied are discussed.

Keywords Carbon nanotubes, Carbon nanofibers ,Cement-based composites ,Cement, Mineral admixture.

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Dynamic analyses of a flat plate and a beam subjected to a moving load

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