Detail publikačního výsledku

Modification of the structure and Properties of Fine-Grained Concrete with Carbon Black Dispersion

YAKOVLEV, G.; GRAKHOV, V.; DROCHYTKA, R.; GORDINA, A.; NIKITIN, S.; BEGUNOVA, E.; BURIYANOV, A.; REPIN, A.

Originální název

Modification of the structure and Properties of Fine-Grained Concrete with Carbon Black Dispersion

Anglický název

Modification of the structure and Properties of Fine-Grained Concrete with Carbon Black Dispersion

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The study shows that adding carbon black (soot) in the form of an aqueous dispersion into the composition of fine-grained concrete leads to an increase in bending and compressive strength of the samples: at a soot concentration of 0.005% by weight of cement, respectively, to 37.63 and 15.99%, at a concentration of 0.02% up to 26.39 and 26.39% due to compaction of the structure of the cement matrix. An intensification of cement hydration processes has been noted, confirmed by the results of IR-spectral, differential-thermal analyses and studies of the cement matrix microstructure in the composition of fine-grained concrete. On the surface of new formations in the composition of modified soot dispersion, the formation of needle-like crystals has been observed. On their surfaces, structures of spherulites formed with sizes ranging from 100 to 200 nm, which are typical for calcium hydro-sulfonic aluminates of 3CaO·Al2O3·3CaSO4·32H2O type. The formation of spherulites is observed in the pores of the cement matrix, which contributes to additional compaction of the structure of fine-grained concrete.

Anglický abstrakt

The study shows that adding carbon black (soot) in the form of an aqueous dispersion into the composition of fine-grained concrete leads to an increase in bending and compressive strength of the samples: at a soot concentration of 0.005% by weight of cement, respectively, to 37.63 and 15.99%, at a concentration of 0.02% up to 26.39 and 26.39% due to compaction of the structure of the cement matrix. An intensification of cement hydration processes has been noted, confirmed by the results of IR-spectral, differential-thermal analyses and studies of the cement matrix microstructure in the composition of fine-grained concrete. On the surface of new formations in the composition of modified soot dispersion, the formation of needle-like crystals has been observed. On their surfaces, structures of spherulites formed with sizes ranging from 100 to 200 nm, which are typical for calcium hydro-sulfonic aluminates of 3CaO·Al2O3·3CaSO4·32H2O type. The formation of spherulites is observed in the pores of the cement matrix, which contributes to additional compaction of the structure of fine-grained concrete.

Klíčová slova

GRAPHENE OXIDE; CEMENT, NANOCOMPOSITE; COMPOSITES

Klíčová slova v angličtině

GRAPHENE OXIDE; CEMENT, NANOCOMPOSITE; COMPOSITES

Autoři

YAKOVLEV, G.; GRAKHOV, V.; DROCHYTKA, R.; GORDINA, A.; NIKITIN, S.; BEGUNOVA, E.; BURIYANOV, A.; REPIN, A.

Rok RIV

2022

Vydáno

18.09.2019

Nakladatel

IOP PUBLISHING LTD

Kniha

4TH WORLD MULTIDISCIPLINARY CIVIL ENGINEERING-ARCHITECTURE-URBAN PLANNING SYMPOSIUM - WMCAUS

ISSN

1757-8981

Periodikum

IOP Conference Series: Materials Science and Engineering

Svazek

603

Číslo

052012

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

8

Strany počet

8

URL

https://iopscience.iop.org/article/10.1088/1757-899X/603/5/052012/pdf

BibTex

@inproceedings{BUT176916,
  author="G.I. {Yakovlev} and V. N. {Grakhov} and Rostislav {Drochytka} and A. F. {Gordina} and Svetlana Vladimirovna {Nikitin} and Ekaterina V. {Begunova} and Alexander Fedorovich {Buriyanov} and Alexander Anatolievich {Repin}",
  title="Modification of the structure and Properties of Fine-Grained Concrete with Carbon Black Dispersion",
  booktitle="4TH WORLD MULTIDISCIPLINARY CIVIL ENGINEERING-ARCHITECTURE-URBAN PLANNING SYMPOSIUM - WMCAUS",
  year="2019",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="603",
  number="052012",
  pages="1--8",
  publisher="IOP PUBLISHING LTD",
  doi="10.1088/1757-899X/603/5/052012",
  issn="1757-8981",
  url="https://iopscience.iop.org/article/10.1088/1757-899X/603/5/052012/pdf"
}