Open AccessOxidized thermally expanded graphite as a raw material for the production of cement composites
Author(s) -
Olga Selezneva,
В. И. Орлов,
Pavel Shustov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/880/1/012019
Subject(s) - materials science , graphite , composite material , cement , graphene , scanning electron microscope , dispersion (optics) , carbon nanotube , carbon fibers , particle (ecology) , raw material , composite number , nanotechnology , optics , oceanography , chemistry , organic chemistry , geology , physics
One of the current tasks is to improve the performance of cement composites. Effective ways to solve a problem is to use a new generation of carbon - containing modifiers. The regulation of the physical and mechanical and operational properties of cement composites must be carried out at the micro level, by regulating the structure formation of the cement matrix One of the promising directions is the use of graphene as a carbon-containing modifier. The article represents research data on oxidized thermally expanding graphite. The results of microscopic and laser diffraction granulometric analyzes are represented. The performed studies allowed to characterize the properties of the research material. The analysis of particle size distribution was carried out on a Fritsch NanoTec laser particle size measuring device with a dispersion unit in a liquid space with a total measurement range from 0.01 to 2100 μm and showed a decrease in size from 574 μm to 22.2 μm. Microscopic research was carried out by using a scanning (raster) electron microscope TESCAN Mira 3 with a magnification range of x1 – x1 000,000. The experimental results presented in the present research prove the effectiveness of using oxidized thermally expanding graphite as a modifier of cement composites.