A thermodynamic model for the calcium silicate hydrate gel, modelled as a non-ideal binary solid solution

被引：22

作者：

Borjesson, S ^{[1
]}

Emren, A ^{[1
]}

Ekberg, C ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Nucl Chem, S-41296 Gothenburg, Sweden

来源：

CEMENT AND CONCRETE RESEARCH | 1997年 / 27卷 / 11期

关键词：

D O I：

10.1016/S0008-8846(97)00149-X

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Solubility calculations have been performed on the CaO-SiO2-H2O system. A modified version of the program SOLISOL was used to model the C-S-H gel as a non-ideal binary solid solution. To account for the non-ideality a mixing model of Margules type, expressing the Gibbs excess free energy of a solid solution as a function of the composition was used. The model indicates that the calcium rich gel coexists with almost pure Ca(OH)(2)(s). A program PAS-SIPHIC has been written to handle the solubility calculations in the region where the C-S-H phase coexists with Portlandite. (C) 1997 Elsevier Science Ltd.

引用

页码：1649 / 1657

页数：9

共 18 条

[1] ATKINS M, 1992, WASTE MANAGE, V12, P201
[2] ATKINSON A, 1987, RW87048 DOE
[3] BERNER U R, 1992, Waste Management, V12, P201, DOI 10.1016/0956-053X(92)90049-O
[4] BOND KA, 1992, HATCHES 50 HARWELL N
[5] SOLISOL - A PROGRAM USING PHREEQE TO SOLVE SOLID-SOLUTION AQUEOUS EQUILIBRIA
BORJESSON, KS
EMREN, AT
[J]. COMPUTERS & GEOSCIENCES, 1993, 19 (08) : 1065 - 1070
[6] BORJESSON S, 1997, UNPUB
[7] BORJESSON S, 1994, THESIS CHALMERS U TE
[8] DUERDEN S, 1995, HMIPP3008A
[9] ENGKVIST J, 1996, 9609 SKB TR
[10] FUJII K, 1981, J CHEM SOC DALTON, V2

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