Open AccessStudy of the in-situ growth of carbon nanofibers on cement clinker
Author(s) -
Xiaoyin Cao,
Xiaodong Li,
Shuo Ma,
Xiaodong Shen
Publication year - 2020
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/ab8f47
Subject(s) - alite , portland cement , clinker (cement) , cement , materials science , cementitious , chemical engineering , composite material , engineering
Because fibres are difficult to disperse evenly in cement-based materials, we attempted to grow carbon nanofibers (CNFs) in situ on Portland cement clinker particles using chemical vapor deposition (CVD). The results show that the phase compositions and alite polymorph didn’t change for the Portland cement clinker treated at 600 °C in the atmosphere of blended gas containing argon (Ar), hydrogen (H 2 ) and acetylene (C 2 H 2 ). The CNFs was successfully grown in situ on the Portland cement clinker due to the reaction of C 2 H 2 in the presence of H 2 . The diameter and length of the CNFs were 20–30 nm and 0.6–0.9 μ m respectively. C 3 S is the main component of cement clinker. The hydration of C 3 S plays a crucial role in the performance of cementitious composites. The hydration of C 3 S was significantly delayed and reduced due to the incorporation of CNFs.