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Residual fly ash from pyrometallurgical processes as a partial replacement for Portland cement in mortars: a study of structural evolution and determination of compressive strength Cover

Residual fly ash from pyrometallurgical processes as a partial replacement for Portland cement in mortars: a study of structural evolution and determination of compressive strength

Materials Science-Poland
Volume 41 (2023): Issue 4 (December 2023)
By: J. C. Juarez-Tapia,  H. García-Ortiz,  M. Pérez-Labra,  J. A. Romero-Serrano,  M. Reyes-Pérez,  A. Hernández-Ramirez,  V. Acosta-Sanchez,  A.M. Teja-Ruiz and  I.A. Reyes-Dominguez  
Open Access
|Apr 2024

Figures & Tables

Fig. 1.

X-ray diffraction diffractogram for residual fly ash powders
X-ray diffraction diffractogram for residual fly ash powders

Fig. 2.

(a) Backscattered electron (BSE) image of typical residual fly ash spheres, (b) elemental spectrum (EDS), (c) particle size distribution
(a) Backscattered electron (BSE) image of typical residual fly ash spheres, (b) elemental spectrum (EDS), (c) particle size distribution

Fig. 3.

X-ray diffraction diffractogram for Portland cement CPC-30R
X-ray diffraction diffractogram for Portland cement CPC-30R

Fig. 4.

(a) Backscattered electron (BSE) image of Portland cement CPC-30R, (b) elemental spectrum (EDS), (c) particle size distribution
(a) Backscattered electron (BSE) image of Portland cement CPC-30R, (b) elemental spectrum (EDS), (c) particle size distribution

Fig. 5.

X-ray diffraction diffractogram for sand
X-ray diffraction diffractogram for sand

Fig. 6.

(a) Back-scattered electron (BSE) image of sand; (b) Elemental spectrum (EDS)
(a) Back-scattered electron (BSE) image of sand; (b) Elemental spectrum (EDS)

Fig. 7.

X-ray diffraction diffractograms for standard mortar mixes (without Portland cement substitution) at 3, 7, and 14 days of curing time
X-ray diffraction diffractograms for standard mortar mixes (without Portland cement substitution) at 3, 7, and 14 days of curing time

Fig. 8.

X-ray diffraction diffractograms for the mortar mixtures (with Portland cement substitution of 10% residual fly ash) at 3, 7, 14 and 28 days of curing time
X-ray diffraction diffractograms for the mortar mixtures (with Portland cement substitution of 10% residual fly ash) at 3, 7, 14 and 28 days of curing time

Fig. 9.

X-ray diffraction diffractograms for the mortar mixtures (with Portland cement substitution of 15% residual fly ash) at 3, 7, 14, and 28 days of curing time
X-ray diffraction diffractograms for the mortar mixtures (with Portland cement substitution of 15% residual fly ash) at 3, 7, 14, and 28 days of curing time

Fig. 10.

SEM micrograph detail of: (a,b) samples of mortars substituting Portland cement for 0% residual fly ash; (c, d) samples of mortars substituting Portland cement for 10% residual fly ash; (e, f) samples of mortars substituting Portland cement for 15% residual fly ash
SEM micrograph detail of: (a,b) samples of mortars substituting Portland cement for 0% residual fly ash; (c, d) samples of mortars substituting Portland cement for 10% residual fly ash; (e, f) samples of mortars substituting Portland cement for 15% residual fly ash

Fig. 11.

(a) Particles coated with hydration products; (b) smooth-surfaced particles; (c) particles with evidence of attack on their surface
(a) Particles coated with hydration products; (b) smooth-surfaced particles; (c) particles with evidence of attack on their surface

Fig. 12.

Compressive strength (sc) of mortar samples with 0%, 10%, and 15% residual fly ash at 3, 7, 14, and 28 days
Compressive strength (sc) of mortar samples with 0%, 10%, and 15% residual fly ash at 3, 7, 14, and 28 days

Physical properties of fly ash and Portland cement

MaterialsMedian particle size (μm)Specific GravityPassing 45 μm sieve (%)Blaine fineness (m2/kg)
Portland cement (CPC-30R)5.673.1098348
Fly ash13.072.0279302
DOI: https://doi.org/10.2478/msp-2023-0050 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
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Language: English
Page range: 120 - 131
Submitted on: Jan 23, 2024
Accepted on: Mar 1, 2024
Published on: Apr 2, 2024
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Related subjects:
Materials sciences,
Materials sciences, other,
Nanomaterials,
Functional and smart materials,
Materials characterization and properties

© 2024 J. C. Juarez-Tapia, H. García-Ortiz, M. Pérez-Labra, J. A. Romero-Serrano, M. Reyes-Pérez, A. Hernández-Ramirez, V. Acosta-Sanchez, A.M. Teja-Ruiz, I.A. Reyes-Dominguez, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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