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MECHANICAL PROPERTIES OF CEMENT MORTAR WITH GRAPHENE OXIDE Cover

MECHANICAL PROPERTIES OF CEMENT MORTAR WITH GRAPHENE OXIDE

Architecture, Civil Engineering, Environment
Volume 12 (2019): Issue 1 (March 2019)
By: Małgorzata KRYSTEK  
Open Access
|May 2019

Figures & Tables

Figure 1.

Results of the sand sieve analysis

Figure 2.

Results of compression tests conducted on 60×80 mm cylindrical specimens. a) The variability of compressive strength in time [26, 27] b) Plain mortar sample and c) cement-GO sample after compression test at the age of 14 days [26]

Figure 3.

Results of compression tests conducted on 60 x 120 mm cylindrical specimens. a) Stress-strain curves and b) variability of Young’s modulus values under increasing load [27]

Results of the uniaxial cylindrical compressive strength and Young’s modulus tests at the age of 28 days [27]

SampleParameters
Force [kN]Strength [MPa]Average strength [MPa] (increase)Young’s modulus [GPa]Average Young’s modulus value [GPa] (increase)
R 88.6531.25 32.12 (0%) 30.61 30.10 (0%)
95.6933.8428.74
87.2030.7427.16
101.1235.7632.75
81.7428.9131.24
GO0.03 118.0841.78 41.18 (28%) 31.52 31.90 (6%)
113.1040.0230.63
115.0240.7030.43
120.4542.6233.23
115.3040.7833.69

Results of the flexural and cubic compressive strength tests at the age of 28 days [26]

SampleParameters
Flexural strengthCompressive strength
Force [kN]Strength [MPa]Average strength [MPa] (increase)Force [kN]Strength [MPa]Average strength [MPa] (increase)
R 1.784.17 4.00 (0%) 64.5540.34 39.90 (0%)
60.9438.08
1.754.1062.1038.81
64.9140.57
1.593.7365.7141.06
64.8440.52
GO 0.03 1.744.07 4.52 (13%) 80.8150.50 49.00 (23%)
79.9449.96
2.235.2269.8043.65
79.9249.94
1.824.2680.2150.13
79.6949.80

Chemical and physical properties of cement

Average values
Loss on ignition [%]2.99
Insoluble residue [%]0.81
SO3 content [%]3.20
Cl- content [%]0.063
Na2O content [%]0.75
Start of setting time [min]217
Compressive strength after 2 days [MPa]26.5
Compressive strength after 28 days [MPa]51.4
Stability of volume [mm]0.80
Specific surface area [cm2/g]3416

Composition of fabricated cement mortars

SampleComponents
Cement [g]Water for GO dispersion [g]Remaining water [g]Sand [g]Graphene oxide [g]
R340001700102000
GO0.0334002221478102001.02
DOI: https://doi.org/10.21307/acee-2019-008 | Journal eISSN: 2720-6947 | Journal ISSN: 1899-0142
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Language: English
Page range: 91 - 96
Submitted on: Jul 30, 2018
|
Accepted on: Feb 11, 2019
|
Published on: May 20, 2019
Published by: Silesian University of Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Cement mortar,
Compressive strength,
Concrete nanotechnology,
Graphene oxide,
Poisson’s ratio,
Young’s modulus
Related subjects:
Architecture and design,
Architecture,
Architects, buildings

© 2019 Małgorzata KRYSTEK, published by Silesian University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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