Influence of the gypsum dehydration temperature and alkali additives on the properties of anhydrite cement

While dehydrating gypsum with additives at the temperatures of 800°C and 900°C the influence of alkali additives on both the crystalline structure of anhydrite and properties of anhydrite binder was investigated. The industrial and household wastes including other lowcost materials were used as...

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Main Authors: Leskeviciene V., Sarlauskaite I., Nizeviciene D., Kybartiene N.
Format: Article
Language:English
Published: International Institute for the Science of Sintering, Beograd 2010-01-01
Series:Science of Sintering
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0350-820X/2010/0350-820X1002233L.pdf
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author Leskeviciene V.
Sarlauskaite I.
Nizeviciene D.
Kybartiene N.
author_facet Leskeviciene V.
Sarlauskaite I.
Nizeviciene D.
Kybartiene N.
author_sort Leskeviciene V.
collection DOAJ
description While dehydrating gypsum with additives at the temperatures of 800°C and 900°C the influence of alkali additives on both the crystalline structure of anhydrite and properties of anhydrite binder was investigated. The industrial and household wastes including other lowcost materials were used as additives. Having heated them with gypsum the anhydrite with alkali activation properties was obtained. The properties of such substances were evaluated using the methods of chemical, diffractive X-ray scanning and scanning electron microscopy (SEM) analyses. Some additives, e.g. 5 % ground glass waste, were found to increase crystal agglomerate formation of anhydrite binder, accelerate the hydration process of anhydrite and double the compressive strength of hydrated samples compared to samples without additives.
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spelling doaj.art-7426e7eac6ea4fe38103d8fda218cf502022-12-21T19:11:33ZengInternational Institute for the Science of Sintering, BeogradScience of Sintering0350-820X2010-01-0142223324310.2298/SOS1002233LInfluence of the gypsum dehydration temperature and alkali additives on the properties of anhydrite cementLeskeviciene V.Sarlauskaite I.Nizeviciene D.Kybartiene N.While dehydrating gypsum with additives at the temperatures of 800°C and 900°C the influence of alkali additives on both the crystalline structure of anhydrite and properties of anhydrite binder was investigated. The industrial and household wastes including other lowcost materials were used as additives. Having heated them with gypsum the anhydrite with alkali activation properties was obtained. The properties of such substances were evaluated using the methods of chemical, diffractive X-ray scanning and scanning electron microscopy (SEM) analyses. Some additives, e.g. 5 % ground glass waste, were found to increase crystal agglomerate formation of anhydrite binder, accelerate the hydration process of anhydrite and double the compressive strength of hydrated samples compared to samples without additives.http://www.doiserbia.nb.rs/img/doi/0350-820X/2010/0350-820X1002233L.pdfanhydrite cementadditivedehydrationcompressive strengthsetting time
spellingShingle Leskeviciene V.
Sarlauskaite I.
Nizeviciene D.
Kybartiene N.
Influence of the gypsum dehydration temperature and alkali additives on the properties of anhydrite cement
Science of Sintering
anhydrite cement
additive
dehydration
compressive strength
setting time
title Influence of the gypsum dehydration temperature and alkali additives on the properties of anhydrite cement
title_full Influence of the gypsum dehydration temperature and alkali additives on the properties of anhydrite cement
title_fullStr Influence of the gypsum dehydration temperature and alkali additives on the properties of anhydrite cement
title_full_unstemmed Influence of the gypsum dehydration temperature and alkali additives on the properties of anhydrite cement
title_short Influence of the gypsum dehydration temperature and alkali additives on the properties of anhydrite cement
title_sort influence of the gypsum dehydration temperature and alkali additives on the properties of anhydrite cement
topic anhydrite cement
additive
dehydration
compressive strength
setting time
url http://www.doiserbia.nb.rs/img/doi/0350-820X/2010/0350-820X1002233L.pdf
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AT nizeviciened influenceofthegypsumdehydrationtemperatureandalkaliadditivesonthepropertiesofanhydritecement
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