skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Influence of nano-dispersive modified additive on cement activity

Abstract

In the work the influence of single-walled carbon nanotubes (SWCNT) on the cement activity and the processes of structure formation of the hardened cement paste in different periods of hydration are studied. The changes in the kinetic curves of the sample strength growth modified with SWCNT in amount of 0.01 and 0.0005 % are stipulated by the results of differential scanning colorimetry, scanning electronic and ionic microscopy, X-ray-phase analysis. It was found that the nano-modified additive may increase in the axis compressive strength of the system by 1.4–6.3 fold relatively to the reference samples and may reach 179.6 MPa. It may intensify the hydration process of calcium silicates as well as influence on the matrix of hardened cement paste. The studies are conducted on the structural changes in the hardened cement paste, the time periods of increase and decrease of the compressive strength of the samples, the amount of the calcium hydroxide and tobermorite-like gel as well as the degree of hydration C{sub 3}S and β-C{sub 2}S.

Authors:
; ;  [1];  [2]
  1. Angarsk State Technical University, 60, Tchaykovsky St., 665835, Angarsk (Russian Federation)
  2. Tomsk State University of Architecture and Building, 2, Solyanaya Sq., 634003, Tomsk (Russian Federation)
Publication Date:
OSTI Identifier:
22494452
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1698; Journal Issue: 1; Conference: AMTC-2015: 2. all-Russian scientific conference of young scientists on advanced materials in technology and construction, Tomsk (Russian Federation), 6-9 Oct 2015; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION SPECTROSCOPY; ADDITIVES; CALCIUM HYDROXIDES; CALCIUM SILICATES; CARBON NANOTUBES; CEMENTS; COMPRESSION STRENGTH; DIAGRAMS; GELS; HYDRATION; PHASE STUDIES; PRESSURE RANGE MEGA PA 100-1000; SCANNING ELECTRON MICROSCOPY; X RADIATION

Citation Formats

Sazonova, Natalya, Badenikov, Artem, Ivanova, Elizaveta, and Skripnikova, Nelli. Influence of nano-dispersive modified additive on cement activity. United States: N. p., 2016. Web. doi:10.1063/1.4937882.
Sazonova, Natalya, Badenikov, Artem, Ivanova, Elizaveta, & Skripnikova, Nelli. Influence of nano-dispersive modified additive on cement activity. United States. https://doi.org/10.1063/1.4937882
Sazonova, Natalya, Badenikov, Artem, Ivanova, Elizaveta, and Skripnikova, Nelli. 2016. "Influence of nano-dispersive modified additive on cement activity". United States. https://doi.org/10.1063/1.4937882.
@article{osti_22494452,
title = {Influence of nano-dispersive modified additive on cement activity},
author = {Sazonova, Natalya and Badenikov, Artem and Ivanova, Elizaveta and Skripnikova, Nelli},
abstractNote = {In the work the influence of single-walled carbon nanotubes (SWCNT) on the cement activity and the processes of structure formation of the hardened cement paste in different periods of hydration are studied. The changes in the kinetic curves of the sample strength growth modified with SWCNT in amount of 0.01 and 0.0005 % are stipulated by the results of differential scanning colorimetry, scanning electronic and ionic microscopy, X-ray-phase analysis. It was found that the nano-modified additive may increase in the axis compressive strength of the system by 1.4–6.3 fold relatively to the reference samples and may reach 179.6 MPa. It may intensify the hydration process of calcium silicates as well as influence on the matrix of hardened cement paste. The studies are conducted on the structural changes in the hardened cement paste, the time periods of increase and decrease of the compressive strength of the samples, the amount of the calcium hydroxide and tobermorite-like gel as well as the degree of hydration C{sub 3}S and β-C{sub 2}S.},
doi = {10.1063/1.4937882},
url = {https://www.osti.gov/biblio/22494452}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1698,
place = {United States},
year = {Fri Jan 15 00:00:00 EST 2016},
month = {Fri Jan 15 00:00:00 EST 2016}
}