The hydration products of Portland cement in the presence of tin(II) chloride

被引：22

作者：

Hill, J ^{[1
]}

Sharp, JH ^{[1
]}

机构：

[1] Univ Sheffield, Dept Engn Mat, Sheffield S1 3JD, S Yorkshire, England

来源：

CEMENT AND CONCRETE RESEARCH | 2003年 / 33卷 / 01期

关键词：

hydration products; Friedel's salt; Portland cement; tin (II) chloride; X-ray diffraction;

D O I：

10.1016/S0008-8846(02)00936-5

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The hydration products of Portland cement pastes cured using water containing tin(II) chloride have been compared with those using distilled water. In the latter case, the expected products-portlandite, ettringite and calcite-were observed. The X-ray diffraction patterns of the cement pastes cured in the presence of tin(II) chloride showed several additional peaks that have been attributed to the formation of calcium hydroxo-stannate, CaSn(OH)(6), and Friedel's salt (tetracalcium aluminate dichloride-10-hydrate), Ca3Al2O6.CaCl2.10H(2)O. The amount of portlandite formed was reduced in the presence of tin(II) chloride. Calcium hydroxo-stannate contains tin in the +IV oxidation state and equations are presented to account for the oxidation of Sn(II) to Sn(IV) preceding the formation of CaSn(OH)(6) and Friedel's salt. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：121 / 124

页数：4

共 6 条

[1]

BHATTY JI, 1995, RES DEV B PORTLAND C, P13

[2]

COCKE DL, 1993, CHEM MICROSTRUCTURE, P187

[3]

HILL J, UNPUB ADV CEM RES

[4]

PARTINGTON JR, 1954, GEN INORGANIC CHEM, P516

[5] SOLIDIFICATION STABILIZATION OF HAZARDOUS-WASTE - EVIDENCE OF PHYSICAL ENCAPSULATION [J].

ROY, A ;

EATON, HC ;

CARTLEDGE, FK ;

TITTLEBAUM, ME .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1992, 26 (07) :1349-1353

[6] A REVIEW OF SOLIDIFICATION STABILIZATION INTERFERENCES [J].

TRUSSELL, S ;

SPENCE, RD .

WASTE MANAGEMENT, 1994, 14 (06) :507-519

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