SILICATE BONDING OF INORGANIC MATERIALS .1. CHEMICAL-REACTIONS IN SODIUM-SILICATE AT ROOM-TEMPERATURE

被引：11

作者：

MACKENZIE, KJD

BROWN, IWM

RANCHOD, P

MEINHOLD, RH

机构：

[1] Chemistry Division, DSIR, Petone, Private Bag

来源：

JOURNAL OF MATERIALS SCIENCE | 1991年 / 26卷 / 03期

关键词：

D O I：

10.1007/BF03163519

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The room-temperature setting process in compacts of various silicate and non-silicate mineral particles bonded with sodium silicate was found to be markedly accelerated by treatment with the acidic gases CO2, SO2 and H2S, but was unaffected by neutral o alkaline gases. Strength development increases with gassing time up to a maximum value which depends on the Si to Na ratio of the sodium silicate, the nature of the mineral matter and the gas used. Longer gassing times are needed to achieve ultimate strength with sodium silicates of higher pH and gases of lower solubility in water. The chemical species formed by reaction of CO2, SO2 and H2S with sodium silicate were investigated by IR spectroscopy, X-ray diffraction and 29-Si solid state NMR spectroscopy.

引用

页码：763 / 768

页数：6

共 17 条

[1]

BERG PP, 1967, LITEINOE PROIZVOD, P17

[2]

DAVIES MJ, 1972, KINZOKU, V42, P116

[3]

EYSEL HH, 1976, Z NATURFORSCH B, V31, P415

[4]

Frocht M.M., 1948, PHOTOELASTICITY, V2, P121

[5] BLUE SOLUTIONS OF SULFUR IN WATER AT ELEVATED TEMPERATURES [J].

GIGGENBACH, W .

INORGANIC CHEMISTRY, 1971, 10 (06) :1306-+

[6]

MACKENZIE KJD, 1986, Patent No. 212330

[7] SOLID-STATE HIGH-RESOLUTION SI-29 CHEMICAL-SHIFTS IN SILICATES [J].

MAGI, M ;

LIPPMAA, E ;

SAMOSON, A ;

ENGELHARDT, G ;

GRIMMER, AR .

JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (08) :1518-1522

[8]

MOENKE HHM, 1974, INFRARED SPECTRA MIN, pCH16

[9]

NICHOLS KEL, 1972, CO2 SILICATE PROCESS

[10]

NUMAN Z, 1967, COMMUN FS U ANKARA A, V16, P1

← 1 2 →