Direct synthesis of carbon nanofibers on cement particlesShow others and affiliations
2010 (English)In: Transportation Research Record, ISSN 0361-1981, E-ISSN 2169-4052, no 2142, p. 96-101Article in journal (Refereed) Published
Abstract [en]
Carbon nanotubes (CNTs) and nanofibers (CNFs) are promising candidates for the next generation of high-performance structural and multifunctional composite materials. 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 are required in purifying and functionalizing the carbon nanomaterial. A new approach under which CNTs-CNFs are grown directly on the surface of matrix and matrix precursor particles is proposed. Cement was selected as the precursor matrix, since it is the most important construction material. A novel cement hybrid material (CHM) was synthesized in which CNTs and CNFs are attached to the cement particles by two different methods: screw feeder and fluidized bed reactors. CHM has been proved to increase the compressive strength by two times and the electrical conductivity of the hardened paste by 40 times.
Place, publisher, year, edition, pages
2010. no 2142, p. 96-101
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-2936DOI: 10.3141/2142-14ISI: 000277673400015Scopus ID: 2-s2.0-78651307315Local ID: 0accc31b-573a-4d3b-ae83-ef8c5533d94dOAI: oai:DiVA.org:ltu-2936DiVA, id: diva2:975790
Note
Upprättat; 2010; 20160222 (andcwi)
2016-09-292016-09-292023-05-08Bibliographically approved