The saw dust (SD) is often used as a fuel which in turn leads to the environmental pollution. So, it must utilize this waste into useful applications to avoid what is known as “air pollution”. In this study, the SD was converted to saw dust ash (SDA) by its firing at 500°C. It is then used as a partial substitution for cement. The results showed that the water of consistency (WC), initial setting time (IST) and final setting time (FST) of the Portland cement pastes are decreased with the substitution of SDA due to the presence of Na-lignosulfonate. The bound water content (BW), bulk density (BD) and compressive strength (CS) increased with time of hydration up to 90 days, while the apparent porosity (AP) decreased. The BW, BD and CS of the cement pastes containing 5-15 wt. % SDA are slightly higher than those of the blank (S0) at all hydration ages. The free lime content (FL) of the Portland cement pastes (S0) increased as the hydration progressed onward, whereas the cement pastes with SDA (S1-S5) only increased up to 3 days and then decreased. The FTIR spectra of the OPC without SDA showed that the free lime content increased as the hydration proceeded till 90 days, while that of the optimum cement mix containing 15 wt. % SDA, the FL content increased only up to 3 days and then progressively decreased until nearly disappeared after 90 days.
| Published in | American Journal of Applied Scientific Research (Volume 3, Issue 5) |
| DOI | 10.11648/j.ajasr.20170305.13 |
| Page(s) | 63-71 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2017. Published by Science Publishing Group |
OPC, Saw Dust Ash, Hydration, Setting, Free Lime, Bulk Density, Apparent Porosity, Strength, IR
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APA Style
H. H. M. Darweesh, M. R. Abo El-Suoud. (2017). Saw Dust Ash Substitution for Cement Pastes-Part I. American Journal of Applied Scientific Research, 3(5), 63-71. https://doi.org/10.11648/j.ajasr.20170305.13
ACS Style
H. H. M. Darweesh; M. R. Abo El-Suoud. Saw Dust Ash Substitution for Cement Pastes-Part I. Am. J. Appl. Sci. Res. 2017, 3(5), 63-71. doi: 10.11648/j.ajasr.20170305.13
AMA Style
H. H. M. Darweesh, M. R. Abo El-Suoud. Saw Dust Ash Substitution for Cement Pastes-Part I. Am J Appl Sci Res. 2017;3(5):63-71. doi: 10.11648/j.ajasr.20170305.13
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Download@article{10.11648/j.ajasr.20170305.13,
author = {H. H. M. Darweesh and M. R. Abo El-Suoud},
title = {Saw Dust Ash Substitution for Cement Pastes-Part I},
journal = {American Journal of Applied Scientific Research},
volume = {3},
number = {5},
pages = {63-71},
doi = {10.11648/j.ajasr.20170305.13},
url = {https://doi.org/10.11648/j.ajasr.20170305.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajasr.20170305.13},
abstract = {The saw dust (SD) is often used as a fuel which in turn leads to the environmental pollution. So, it must utilize this waste into useful applications to avoid what is known as “air pollution”. In this study, the SD was converted to saw dust ash (SDA) by its firing at 500°C. It is then used as a partial substitution for cement. The results showed that the water of consistency (WC), initial setting time (IST) and final setting time (FST) of the Portland cement pastes are decreased with the substitution of SDA due to the presence of Na-lignosulfonate. The bound water content (BW), bulk density (BD) and compressive strength (CS) increased with time of hydration up to 90 days, while the apparent porosity (AP) decreased. The BW, BD and CS of the cement pastes containing 5-15 wt. % SDA are slightly higher than those of the blank (S0) at all hydration ages. The free lime content (FL) of the Portland cement pastes (S0) increased as the hydration progressed onward, whereas the cement pastes with SDA (S1-S5) only increased up to 3 days and then decreased. The FTIR spectra of the OPC without SDA showed that the free lime content increased as the hydration proceeded till 90 days, while that of the optimum cement mix containing 15 wt. % SDA, the FL content increased only up to 3 days and then progressively decreased until nearly disappeared after 90 days.},
year = {2017}
}
TY - JOUR T1 - Saw Dust Ash Substitution for Cement Pastes-Part I AU - H. H. M. Darweesh AU - M. R. Abo El-Suoud Y1 - 2017/11/28 PY - 2017 N1 - https://doi.org/10.11648/j.ajasr.20170305.13 DO - 10.11648/j.ajasr.20170305.13 T2 - American Journal of Applied Scientific Research JF - American Journal of Applied Scientific Research JO - American Journal of Applied Scientific Research SP - 63 EP - 71 PB - Science Publishing Group SN - 2471-9730 UR - https://doi.org/10.11648/j.ajasr.20170305.13 AB - The saw dust (SD) is often used as a fuel which in turn leads to the environmental pollution. So, it must utilize this waste into useful applications to avoid what is known as “air pollution”. In this study, the SD was converted to saw dust ash (SDA) by its firing at 500°C. It is then used as a partial substitution for cement. The results showed that the water of consistency (WC), initial setting time (IST) and final setting time (FST) of the Portland cement pastes are decreased with the substitution of SDA due to the presence of Na-lignosulfonate. The bound water content (BW), bulk density (BD) and compressive strength (CS) increased with time of hydration up to 90 days, while the apparent porosity (AP) decreased. The BW, BD and CS of the cement pastes containing 5-15 wt. % SDA are slightly higher than those of the blank (S0) at all hydration ages. The free lime content (FL) of the Portland cement pastes (S0) increased as the hydration progressed onward, whereas the cement pastes with SDA (S1-S5) only increased up to 3 days and then decreased. The FTIR spectra of the OPC without SDA showed that the free lime content increased as the hydration proceeded till 90 days, while that of the optimum cement mix containing 15 wt. % SDA, the FL content increased only up to 3 days and then progressively decreased until nearly disappeared after 90 days. VL - 3 IS - 5 ER -
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