Influence of the processing temperature on the compressive strength of Na activated lateritic soil for building applications

被引：54
|
作者：
Lemougna, Patrick Ninla [1 ,2 ]
Madi, Achille Balo [1 ,2 ]
Kamseu, Elie [1 ,2 ]
Melo, Uphie Chinje [1 ,2 ]
Delplancke, Marie-Paule [3 ]
Rahier, Hubert [4 ]
机构：
[1] Univ Yaounde I, Physicochem Mineral Mat Lab, Yaounde, Cameroon
[2] MINRESI MIPROMALO, Local Mat Promot Author, Yaounde, Cameroon
[3] Univ Libre Bruxelles, 4MAT, B-1050 Brussels, Belgium
[4] Vrije Univ Brussel, Dept Mat & Chem, B-1050 Brussels, Belgium
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 65卷
关键词：
Lateritic soil; Alkali activation; Processing temperature; Compressive strength; Building applications; SYNTHESIZED ALUMINOSILICATE GLASSES; INORGANIC POLYMERS GEOPOLYMERS; BRICKS; IRON; MICROSTRUCTURE; METAKAOLIN; CERAMICS; MINERALS;
D O I：
10.1016/j.conbuildmat.2014.04.100
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The present study investigates the suitability of alkali activation of a lateritic soil for building applications. Lateritic soil was found to contain kaolinite, associated with quartz and hematite minerals. Both the processing temperatures and the amount of NaOH used were found to influence the development of compressive strength which was in the range of 12-51 MPa and 2-23 MPa respectively for dry and wet specimens. The synthesized products were thermally more stable, containing crystalline and amorphous phases mainly resulting from the dissolution of kaolinite. The XRD, FTIR, SEM and TG/DTA analyses showed an incomplete dissolution of the starting minerals. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：60 / 66
页数：7
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