Experimental investigation of calcium silicate hydrate (C-S-H) nucleation

被引：200

作者：

Garrault-Gauffinet, S ^{[1
]}

Nonat, A ^{[1
]}

机构：

[1] Univ Bourgogne, Lab Rech Reactivite Solides, UMR CNRS 5613, F-21078 Dijon, France

来源：

JOURNAL OF CRYSTAL GROWTH | 1999年 / 200卷 / 3-4期

关键词：

calcium silicate hydrate; homogeneous nucleation; heterogeneous nucleation; degree of supersaturation; lime concentration; induction time;

D O I：

10.1016/S0022-0248(99)00051-2

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Due to the importance of calcium silicate hydrate (C-S-H) in cement chemistry, its nucleation mode and parameters influencing it were investigated. It has been observed that the C-S-H nucleation follows the general laws governing the nucleation. The degree of supersaturation has been found to be the main parameter controlling homogeneous nucleation rates. The lime concentration in solution, well known to be the most important parameter determining the kinetic, morphological and structural features of C-S-H, also controls the nucleation characteristics of heterogeneous nucleation, i.e, during hydration of cement. The correlation between heterogeneous nucleation of C-S-H and possible final mechanical properties of cement paste has been well established. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：565 / 574

页数：10

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