Effects of components on the rate of heat liberation of the hydration in the system of glass/gypsum/lime

Seishi Goto; Hirotaka Fujimori; Atsushi Hidaka; Koji Ioku

doi:10.1016/j.jeurceramsoc.2005.07.053

Effects of components on the rate of heat liberation of the hydration in the system of glass/gypsum/lime

Seishi Goto, Hirotaka Fujimori, Atsushi Hidaka, Koji Ioku

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Slag-simulated glasses in the system of CaO-Al₂O₃ -SiO₂ were prepared. Their rates of heat liberation were measured in the system with gypsum and lime, especially in the excess gypsum system. They have a period with constant rate of heat liberation. These rates depend on the components of the glass. The effects of the components on the rate of heat liberation were discussed. The rates of constant heat liberation depend on the composition of glass especially the contents of CaO and Al₂O₃. The period of this process was controlled by the amount of lime addition. During this stage, the solid Ca(OH)₂ was completely consumed. In this sulfate-excess system, the reaction equation, during Ca(OH)₂ consumption, should be written as; glass + gypsum + lime ⇒ C-S-H with a C/S ratio of 1.42 and Ettringite.

Original language	English
Pages (from-to)	771-776
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	26
Issue number	4-5
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2005.07.053
Publication status	Published - 2006 Jan 11
Externally published	Yes

Keywords

CaO-AlO-SiO glass
Chemical properties

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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title = "Effects of components on the rate of heat liberation of the hydration in the system of glass/gypsum/lime",

abstract = "Slag-simulated glasses in the system of CaO-Al2O3 -SiO2 were prepared. Their rates of heat liberation were measured in the system with gypsum and lime, especially in the excess gypsum system. They have a period with constant rate of heat liberation. These rates depend on the components of the glass. The effects of the components on the rate of heat liberation were discussed. The rates of constant heat liberation depend on the composition of glass especially the contents of CaO and Al2O3. The period of this process was controlled by the amount of lime addition. During this stage, the solid Ca(OH)2 was completely consumed. In this sulfate-excess system, the reaction equation, during Ca(OH)2 consumption, should be written as; glass + gypsum + lime ⇒ C-S-H with a C/S ratio of 1.42 and Ettringite.",

keywords = "CaO-AlO-SiO glass, Chemical properties",

author = "Seishi Goto and Hirotaka Fujimori and Atsushi Hidaka and Koji Ioku",

year = "2006",

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doi = "10.1016/j.jeurceramsoc.2005.07.053",

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pages = "771--776",

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TY - JOUR

T1 - Effects of components on the rate of heat liberation of the hydration in the system of glass/gypsum/lime

AU - Goto, Seishi

AU - Fujimori, Hirotaka

AU - Hidaka, Atsushi

AU - Ioku, Koji

PY - 2006/1/11

Y1 - 2006/1/11

N2 - Slag-simulated glasses in the system of CaO-Al2O3 -SiO2 were prepared. Their rates of heat liberation were measured in the system with gypsum and lime, especially in the excess gypsum system. They have a period with constant rate of heat liberation. These rates depend on the components of the glass. The effects of the components on the rate of heat liberation were discussed. The rates of constant heat liberation depend on the composition of glass especially the contents of CaO and Al2O3. The period of this process was controlled by the amount of lime addition. During this stage, the solid Ca(OH)2 was completely consumed. In this sulfate-excess system, the reaction equation, during Ca(OH)2 consumption, should be written as; glass + gypsum + lime ⇒ C-S-H with a C/S ratio of 1.42 and Ettringite.

AB - Slag-simulated glasses in the system of CaO-Al2O3 -SiO2 were prepared. Their rates of heat liberation were measured in the system with gypsum and lime, especially in the excess gypsum system. They have a period with constant rate of heat liberation. These rates depend on the components of the glass. The effects of the components on the rate of heat liberation were discussed. The rates of constant heat liberation depend on the composition of glass especially the contents of CaO and Al2O3. The period of this process was controlled by the amount of lime addition. During this stage, the solid Ca(OH)2 was completely consumed. In this sulfate-excess system, the reaction equation, during Ca(OH)2 consumption, should be written as; glass + gypsum + lime ⇒ C-S-H with a C/S ratio of 1.42 and Ettringite.

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KW - Chemical properties

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