Examining the pozzolanicity of supplementary cementitious materials using isothermal calorimetry and thermogravimetric analysis

被引:181
作者
Suraneni, Prannoy [1 ]
Weiss, Jason [1 ]
机构
[1] Oregon State Univ, Civil & Construct Engn, Corvallis, OR 97331 USA
关键词
Calorimetry; Thermogravimetric analysis; Fly ash; Granulated blast-furnace slag; Pozzolan; Silica fume; FLY-ASH; COMPRESSIVE STRENGTH; NATURAL ZEOLITES; PORTLAND-CEMENT; HYDRATION; QUANTIFICATION; DISSOLUTION; REACTIVITY; CORROSION; POROSITY;
D O I
10.1016/j.cemconcomp.2017.07.009
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
It has recently been proposed that the pozzolanicity of supplementary cementitious materials can be determined by monitoring the heat released when supplementary cementitious materials are mixed with calcium hydroxide at high temperature and high pH. In this study, the heat release is measured using this procedure for a variety of different supplementary cementitious materials. In addition, thermogravimetric analysis is performed on the reacted material to determine the amount of calcium hydroxide consumed. The heat release and calcium hydroxide consumption can be used in conjunction to compare supplementary cementitious materials. Calcium hydroxide consumption can be used to determine the extent of reaction of supplementary cementitious materials in pastes where supplementary cementitious materials are used to replace a portion of cement. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:273 / 278
页数:6
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