Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Water resistant block from desulfurization gypsum
Highlights ► Addition of GBFS/HCFA cementing material increases water resistance of gypsum block. ► Aft and CSH contribute the water-proof characteristics of the block. ► The product prepared is of softening coefficient of 0.84.
Abstract The purpose of this study is to prepare water resistant block from flue gas desulfurization gypsum [FGD]. A water resistant agent prepared from granulated blast-furnace slag (GBFS), high calcium fly ash (HCFA) and some additives, was mixed with calcined desulfurization gypsum to form modified gypsum powder which is used to produce water resistant block. The optimized proportioning was obtained by using orthogonal test. The softening coefficient of the product prepared is over 0.80 with thermal conductivity coefficient of 0.15W/(mK). The water resistance mechanism of this product was investigated by SEM and XRD.
Water resistant block from desulfurization gypsum
Highlights ► Addition of GBFS/HCFA cementing material increases water resistance of gypsum block. ► Aft and CSH contribute the water-proof characteristics of the block. ► The product prepared is of softening coefficient of 0.84.
Abstract The purpose of this study is to prepare water resistant block from flue gas desulfurization gypsum [FGD]. A water resistant agent prepared from granulated blast-furnace slag (GBFS), high calcium fly ash (HCFA) and some additives, was mixed with calcined desulfurization gypsum to form modified gypsum powder which is used to produce water resistant block. The optimized proportioning was obtained by using orthogonal test. The softening coefficient of the product prepared is over 0.80 with thermal conductivity coefficient of 0.15W/(mK). The water resistance mechanism of this product was investigated by SEM and XRD.
Water resistant block from desulfurization gypsum
Zhao, Feng-qing (Autor:in) / Liu, Hong-jie (Autor:in) / Hao, Li-xia (Autor:in) / Li, Qian (Autor:in)
Construction and Building Materials ; 27 ; 531-533
18.07.2011
3 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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