Cement Grains with Surface-Synthesized Carbon Nanofibers: Mechanical Properties and Nanostructure

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F11%3A00182751" target="_blank" >RIV/68407700:21110/11:00182751 - isvavai.cz</a>
Result on the web
<a href="http://www.nanocon.cz/" target="_blank" >http://www.nanocon.cz/</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Cement Grains with Surface-Synthesized Carbon Nanofibers: Mechanical Properties and Nanostructure
Original language description
Carbon nanofibers were synthesized directly on the surfaces of Portland cement grains. Mixing this new carbon/cement material with ordinary cement creates a modified cementitous substance, where carbon is perfectly dispersed in the volume. Previous attempts to create nano-reinforced composite materials suffered from flocculation and improper dispersion of separately added nanofibers/nanotubes. Now, the hybrid material can be intermixed directly with water and/or sand, creating strong and brittle composite similar to ordinary cement paste/mortar. The composites with weight fractions of carbon nanofibers/paste in the ranges 0-0.038 were prepared and mechanically tested. Slight increase in fracture energy and compressive strength was measured even in thelow carbon weigh fraction 0.019.
Czech name
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Czech description
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Project
<a href="/en/project/GD103%2F09%2FH078" target="_blank" >GD103/09/H078: Computer and experimental analysis of civil engineering materials and their multilayered systems</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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