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Water-resistant Gypsum Compositions with Man-made Modifiers

  • The work has studied the structure and properties of gypsum compositions modified with the manmade modifier based on metallurgical dust and multi-walled carbon nanotubes. The results show that changing the structure of solid gypsum leads to the increase in bending and compressive strength by 70,5% and 138% correspondingly, the water resistance increasing and the softening factor reaching 0,85. Modifying gypsum composition with complex additive leads to the formation of amorphous structures based on calcium hydrosilicates on the surface of primary gypsum crystallohydrates that bond gypsum crystals and reduce the access of water.

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Document Type:Article
Author: G.N. Pervyshin, G.I. Yakovlev, A.F. Gordina, J. Keriene, I.S. Polyanskikh, Hans-Bertram Fischer, N.R. Rachimova, A.F. Buryanov
DOI (Cite-Link):https://doi.org/10.1016/j.proeng.2017.02.087Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20170425-31580Cite-Link
Parent Title (English):Procedia Engineering
Date of Publication (online):2017/04/25
Year of first Publication:2017
Release Date:2017/04/25
Publishing Institution:Bauhaus-Universität Weimar
Institutes:Fakultät Bauingenieurwesen / Professur Werkstoffe des Bauens
First Page:867
Last Page:874
Tag:gypsum, metallurgical dust, multi-walled carbon nanotubes, water resistance, calcium hydrosilicates, X-ray analyze, microstructure.
GND Keyword:Gips; Wasserbeständigkeit; Mikrostruktur
Dewey Decimal Classification:500 Naturwissenschaften und Mathematik / 540 Chemie
BKL-Classification:35 Chemie / 35.44 Alkalimetalle, Erdalkalimetalle und ihre Verbindungen
56 Bauwesen / 56.45 Baustoffkunde
Licence (German):License Logo Creative Commons 4.0 - Namensnennung-Nicht kommerziell-Keine Bearbeitung (CC BY-NC-ND 4.0)