ELECTRON-MICROSCOPY OF HEAVY-METAL WASTE IN CEMENT MATRICES

被引：46

作者：

IVEY, DG

HEIMANN, RB

NEUWIRTH, M

SHUMBORSKI, S

CONRAD, D

MIKULA, RJ

LAM, WW

机构：

[1] ALBERTA RES COUNCIL,DEPT MAT & TESTING,EDMONTON T6H 5X2,ALBERTA,CANADA

[2] ALBERTA ENVIRONM CTR,VEGREVILLE T0B 4L0,ALBERTA,CANADA

[3] ENERGY MINES & RESOURCES CANADA,CANADA CTR MINERAL & ENERGY TECHNOL,FUEL PROC LAB,DEVON T0C 1E0,ALBERTA,CANADA

来源：

JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 12期

关键词：

D O I：

10.1007/BF00580129

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ordinary Portland cements mixed with various amounts of chromium metal in the form of nitrates (Cr(NO3)3), to simulate industrial waste, have been studied by electron microscopy techniques, i.e. scanning electron and scanning transmission electron microscopy. Trivalent chromium was found to be chemically incorporated in all hydrated cement phases, and appeared to substitute for silicon in calcium silicate hydrate (C-S-H), which is the major product of hydration. Chromium was also concentrated in polycrystalline Ca-Cr-rich phases. © 1990 Chapman and Hall Ltd.

引用

页码：5055 / 5062

页数：8

共 13 条

[1] A MODEL FOR LEAD RETARDATION OF CEMENT SETTING [J].