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Akademický článek
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Autor:
T. Sugama
Publikováno v:
Advances in Cement Research. 18:47-57
Citric acid added as set retarder significantly contributed to enhancing the setting temperature and to extending the thickening time of a calcium aluminate phosphate (CaP) geothermal cement slurry consisting of calcium aluminate cement (CAC) as the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44e68e3cf27a1b40f09fe8167d438859
https://doi.org/10.1680/adcr.2006.18.2.47
https://doi.org/10.1680/adcr.2006.18.2.47
Autor:
T. Sugama
Publikováno v:
Journal of Coatings Technology and Research. 2:649-659
A poly-acetamide-acetoxyl methyl-propylsiloxane (PAAMPS) polymer containing a cerium (Ce) oxide-derivative was synthesized through three spontaneous reactions: condensation, amidation, and acetoxylation. The PAAMPS synthesizing took place between the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::755fa7246384027461daa1887d2550fa
https://doi.org/10.1007/bf02774594
https://doi.org/10.1007/bf02774594
Publikováno v:
Cement and Concrete Composites. 27:758-768
Air-foamed low-density calcium aluminate phosphate (CaP) cement slurry was prepared by mixing it with chemical foaming reagent at room temperature without any pressure, followed by autoclaving at 200 °C. When the porosity, compressive strength, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1741ac541e3e61d9ac1bf3f8fb9362d9
https://doi.org/10.1016/j.cemconcomp.2004.11.003
https://doi.org/10.1016/j.cemconcomp.2004.11.003
Publikováno v:
Advances in Cement Research. 17:65-75
Sodium silicate activated slag/class F fly ash (SSASF) blend cements were prepared by varying two parameters, the SiO2/Na2O mol. ratio in the sodium silicate activator, and the slag/fly ash weight ratio, and then autoclaving them at 100, 200 and 300
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad0edba57744c54124c3a327b8916de8
https://doi.org/10.1680/adcr.2005.17.2.65
https://doi.org/10.1680/adcr.2005.17.2.65
Autor:
T. Sugama, L. E. Brothers
Publikováno v:
Advances in Cement Research. 16:77-87
This paper evaluates the usefulness of sodium-silicate-activated slag (SSAS) cement for completing geothermal wells containing highly concentrated H2SO4 and some CO2· Using a 20wt% sodium silicate solution (SiO2/Na2O mol ratio of 3·22) as the alkal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40e4f70caa6b85e625267f41dd5736f2
https://doi.org/10.1680/adcr.2004.16.2.77
https://doi.org/10.1680/adcr.2004.16.2.77
Publikováno v:
Advances in Cement Research. 15:35-44
The resistance of sodium polyphosphate-modified fly ash/calcium aluminate blend (SFCB) geothermal cement to H2SO4 solution (pH 1·2) at 150°C is enhanced by incorporating an emulsion of silanol-terminated polydimethylsiloxane (PDMS) into slurries. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3eaa8dc3bdc5dad954137b27be323d64
https://doi.org/10.1680/adcr.2003.15.1.35
https://doi.org/10.1680/adcr.2003.15.1.35
Publikováno v:
Journal of Materials Science. 37:3163-3173
Study was focused upon formulating sodium polyphosphate-modified fly ash/calcium aluminate blend (SFCB) geothermal well cements with advanced anti-carbonation and anti-acid corrosive properties. At a low hydrothermal temperature of 90°C, to improve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29b6c363c3297ab4209b91978eefde34
https://doi.org/10.1023/a:1016158328024
https://doi.org/10.1023/a:1016158328024
Publikováno v:
Advances in Cement Research. 14:25-34
The usefulness was assessed of two ceramic fibres, α-Al2O3 and α-Al2O3/mullite mixture, for improving the toughness of sodium polyphosphate-modified fly ash/calcium aluminate blended (SFCB) cement, which is used for completing geothermal wells. At
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9979a56b65a537c02b697f05973a9c70
https://doi.org/10.1680/adcr.2002.14.1.25
https://doi.org/10.1680/adcr.2002.14.1.25