Structural Performance of Alkali-Activated Soil Ash versus Soil Cement
Publication type: Journal Article
Publication date: 2015-08-13
scimago Q1
wos Q2
SJR: 0.861
CiteScore: 5.6
Impact factor: 3.0
ISSN: 08991561, 19435533
General Materials Science
Mechanics of Materials
Building and Construction
Civil and Structural Engineering
Abstract
AbstractAlkaline activation of fly ash (FA) was used to improve the mechanical performance of a silty sand, considering this new material as a replacement for soil-cement applications, namely, bases and subbases, for transportation infrastructures. For that purpose, specimens were molded from mixtures of soil, FA, and an alkaline activator made from sodium hydroxide and sodium silicate. Uniaxial compression tests showed that strength is highly increased by the addition of this new binder. The results described a high stiffness material, with an initial volume reduction followed by significant dilation. All specimens have clearly reached the respective yield surface during shearing, and peak-strength Mohr–Coulomb parameters were defined for each mixture. The evolution of the microstructure during curing, responsible for the mechanical behavior detected in the previous tests, was observed by scanning electron microscopy. These results were compared with soil-cement data obtained previously with the same soi...
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120
Total citations:
120
Citations from 2024:
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(27.74%)
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GOST
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Rios S. et al. Structural Performance of Alkali-Activated Soil Ash versus Soil Cement // Journal of Materials in Civil Engineering. 2015. Vol. 28. No. 2.
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Rios S., de Gutierrez R. M., Viana da Fonseca A., Ferreira C. Structural Performance of Alkali-Activated Soil Ash versus Soil Cement // Journal of Materials in Civil Engineering. 2015. Vol. 28. No. 2.
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TY - JOUR
DO - 10.1061/(ASCE)MT.1943-5533.0001398
UR - https://doi.org/10.1061/(ASCE)MT.1943-5533.0001398
TI - Structural Performance of Alkali-Activated Soil Ash versus Soil Cement
T2 - Journal of Materials in Civil Engineering
AU - Rios, Sara
AU - de Gutierrez, R M.
AU - Viana da Fonseca, António
AU - Ferreira, C.
PY - 2015
DA - 2015/08/13
PB - American Society of Civil Engineers (ASCE)
IS - 2
VL - 28
SN - 0899-1561
SN - 1943-5533
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2015_Rios,
author = {Sara Rios and R M. de Gutierrez and António Viana da Fonseca and C. Ferreira},
title = {Structural Performance of Alkali-Activated Soil Ash versus Soil Cement},
journal = {Journal of Materials in Civil Engineering},
year = {2015},
volume = {28},
publisher = {American Society of Civil Engineers (ASCE)},
month = {aug},
url = {https://doi.org/10.1061/(ASCE)MT.1943-5533.0001398},
number = {2},
doi = {10.1061/(ASCE)MT.1943-5533.0001398}
}