Kinetics of slag hydration in the presence of calcium hydroxide

被引:19
作者
Biernacki, JJ [1 ]
Richardson, JM
Stutzman, PE
Bentz, DP
机构
[1] Tennessee Technol Univ, Dept Chem Engn, Cookeville, TN 38505 USA
[2] NIST, Gaithersburg, MD 20899 USA
关键词
D O I
10.1111/j.1151-2916.2002.tb00445.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The reaction between ground granulated blast furnace slag (GGBFS) having an empirical formula of C(7.88)S(7.39)M(3)A and calcium hydroxide (CH) was investigated. The kinetics of the reaction were explored. Thermogravimetric analysis was used to monitor the consumption of CH from which irate constants were determined. Based on Knudsen's kinetic model, activation energies of 14.5, 17.9, and 22.6 kJ/mol were determined for three different mass ratios of slag and CH reacted over a temperature range of 15degrees to 50degreesC and hydrated for a period of time from 0 to 32 days. A comparison of the kinetics of the slag/CH reaction was made with slag/portland cement hydration. The basic features of both appear similar.
引用
收藏
页码:2261 / 2267
页数:7
相关论文
共 26 条
[11]   Determination of kinetic equations of alkaline activation of blast furnace slag by means of calorimetric data [J].
Fernandez-Jimenez, A ;
Puertas, F ;
Arteaga, A .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 1998, 52 (03) :945-955
[12]   Influence of the activator concentration on the kinetics of the alkaline activation process of a blastfurnace slag [J].
FernandezJimenez, A ;
Puertas, F .
MATERIALES DE CONSTRUCCION, 1997, 47 (246) :31-42
[13]   INFLUENCE OF THE QUENCHING MEDIUM ON THE HYDRATION KINETICS OF TRICALCIUM SILICATE [J].
FIERENS, P ;
KABUEMA, Y ;
TIRLOCQ, J .
CEMENT AND CONCRETE RESEARCH, 1982, 12 (02) :191-198
[14]  
Hinrichs W., 1989, Advances in Cement Research, V2, P9, DOI [10.1680/adcr.1989.2.5.9, DOI 10.1680/ADCR.1989.2.5.9]
[15]   Reactions in solid states at room temperature I Announcement the rate of reaction in endothermic conversions. [J].
Jander, W .
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1927, 163 (1/2) :1-30
[16]   THE DISPERSION MODEL FOR HYDRATION OF PORTLAND-CEMENT .1. GENERAL CONCEPTS [J].
KNUDSEN, T .
CEMENT AND CONCRETE RESEARCH, 1984, 14 (05) :622-630
[17]   SELECTIVE DISSOLUTION OF HYDRATED BLAST-FURNACE SLAG CEMENTS [J].
LUKE, K ;
GLASSER, FP .
CEMENT AND CONCRETE RESEARCH, 1987, 17 (02) :273-282
[18]   INTERNAL CHEMICAL EVOLUTION OF THE CONSTITUTION OF BLENDED CEMENTS [J].
LUKE, K ;
GLASSER, FP .
CEMENT AND CONCRETE RESEARCH, 1988, 18 (04) :495-502
[19]   Degrees of reaction of the slag ln some blends with Portland cements [J].
Lumley, JS ;
Gollop, RS ;
Moir, GK ;
Taylor, HFW .
CEMENT AND CONCRETE RESEARCH, 1996, 26 (01) :139-151
[20]  
MA WP, 1994, CEMENT CONCRETE AGGR, V16, P93