Some aspects on improvement of water resistant perfornace of gypsum binders

The study reports that control of water resistant and strength performance of composite binder can be accomplished by using nanostructured gypsum silicate binder and portland cement and reduction of calcium sulfate dihydrate. Formation of an arranged more dense packing in crystal matrix of binder st...

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Main Authors: Fomina Ekaterina, Voitovich Elena, Brukhanov Oleg
Format: Article
Language:English
Published: EDP Sciences 2016-01-01
Series:MATEC Web of Conferences
Online Access:http://dx.doi.org/10.1051/matecconf/20168604065
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author Fomina Ekaterina
Voitovich Elena
Brukhanov Oleg
author_facet Fomina Ekaterina
Voitovich Elena
Brukhanov Oleg
author_sort Fomina Ekaterina
collection DOAJ
description The study reports that control of water resistant and strength performance of composite binder can be accomplished by using nanostructured gypsum silicate binder and portland cement and reduction of calcium sulfate dihydrate. Formation of an arranged more dense packing in crystal matrix of binder structure can be achieved through polydispersity of nanostructured silicon component. Highly reactive silica particles participate in synthesis of microcrystalline compounds such as hydroxylellestadite and serve as nucleation sites providing an increase of surface contact area between crystal structures. Cement in the system provides conditions to synthesis of stable flat-like hydroxysulfoaluminates. Upon hydration of a binder crystals of calcium sulfate dihydrate impound to a mass of water resistant crystalhydrate new formations, type and morphology of which promotes decreasing of intercrystal porosity followed by density, strength and water resistance increase of the composite.
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spelling doaj.art-974b4c5e7aa145b1b05b1b0056b3c8922022-12-21T20:19:53ZengEDP SciencesMATEC Web of Conferences2261-236X2016-01-01860406510.1051/matecconf/20168604065matecconf_ipicse2016_04065Some aspects on improvement of water resistant perfornace of gypsum bindersFomina Ekaterina0Voitovich ElenaBrukhanov Oleg1Belgorod State Technological UniversityMoscow State University of Civil EngineeringThe study reports that control of water resistant and strength performance of composite binder can be accomplished by using nanostructured gypsum silicate binder and portland cement and reduction of calcium sulfate dihydrate. Formation of an arranged more dense packing in crystal matrix of binder structure can be achieved through polydispersity of nanostructured silicon component. Highly reactive silica particles participate in synthesis of microcrystalline compounds such as hydroxylellestadite and serve as nucleation sites providing an increase of surface contact area between crystal structures. Cement in the system provides conditions to synthesis of stable flat-like hydroxysulfoaluminates. Upon hydration of a binder crystals of calcium sulfate dihydrate impound to a mass of water resistant crystalhydrate new formations, type and morphology of which promotes decreasing of intercrystal porosity followed by density, strength and water resistance increase of the composite.http://dx.doi.org/10.1051/matecconf/20168604065
spellingShingle Fomina Ekaterina
Voitovich Elena
Brukhanov Oleg
Some aspects on improvement of water resistant perfornace of gypsum binders
MATEC Web of Conferences
title Some aspects on improvement of water resistant perfornace of gypsum binders
title_full Some aspects on improvement of water resistant perfornace of gypsum binders
title_fullStr Some aspects on improvement of water resistant perfornace of gypsum binders
title_full_unstemmed Some aspects on improvement of water resistant perfornace of gypsum binders
title_short Some aspects on improvement of water resistant perfornace of gypsum binders
title_sort some aspects on improvement of water resistant perfornace of gypsum binders
url http://dx.doi.org/10.1051/matecconf/20168604065
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AT voitovichelena someaspectsonimprovementofwaterresistantperfornaceofgypsumbinders
AT brukhanovoleg someaspectsonimprovementofwaterresistantperfornaceofgypsumbinders