Feasibility of producing geopolymers from two different Tunisian clays before and after calcination at various temperatures

被引：64
作者：
Essaidi, N. [1 ,2 ]
Samet, B. [1 ]
Baklouti, S. [1 ]
Rossignol, S. [2 ]
机构：
[1] Ecole Natl Ingn Sfax, Lab Chim Ind, Sfax, Tunisia
[2] Ecole Natl Super Ceram Ind, Ctr Europeen Ceram, Grp Etud Mat Heterogenes, F-87068 Limoges, France
来源：
APPLIED CLAY SCIENCE | 2014年 / 88-89卷
关键词：
Clay; Calcination; Kaolinite; Surface defects; Consolidated material; Geopolymer; DIASPORIC BAUXITE; FLY-ASH; KAOLINITE; ACTIVATION; TRANSFORMATION; DESILICATION; MECHANISM;
D O I：
10.1016/j.clay.2013.12.006
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Two Tunisian clays, kaolinitic from the Tabarka (Clay T) region and illito-kaolinitic rich in hematite from the Medenine (Clay M) region, are tested as potential aluminosilicate sources for the synthesis of geopolymers. The raw clays and clays calcined at 700, 800, 850 and 900 degrees C were characterized using XRD, DTA/FG, and FTIR spectroscopy and Si-29 and Al-22 MAS NMR measurements. It was demonstrated that samples based on Clay M present more reactivity than those based on the Clay T because of the amorphization of clay minerals. The structural evolution on calcination is studied in detail to predict the behavior of the clay during geopolymerization. Despite its lower content in kaolinite than Clay T, Clay M is capable of providing geopolymers. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：221 / 227
页数：7
相关论文
共 39 条
[1]   The transformation of kaolin to low-silica X zeolite [J].
Akolekar, D ;
Chaffee, A ;
Howe, RF .
ZEOLITES, 1997, 19 (5-6) :359-365
[2]  
[Anonymous], P 3 C ALK ACT MAT
[3]   Resistance of geopolymer materials to acid attack [J].
Bakharev, T .
CEMENT AND CONCRETE RESEARCH, 2005, 35 (04) :658-670
[4]  
Bich C., 2005, THESIS I NATL SCI AP
[5]   THE KAOLINITE-MULLITE REACTION SERIES .1. A SURVEY OF OUTSTANDING PROBLEMS [J].
BRINDLEY, GW ;
NAKAHIRA, M .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1959, 42 (07) :311-314
[6]   HIGH-TEMPERATURE REACTIONS OF CLAY MINERAL MIXTURES AND THEIR CERAMIC PROPERTIES .1. KAOLINITE-MICA-QUARTZ MIXTURES WITH 25 WEIGHT-PERCENT QUARTZ [J].
BRINDLEY, GW ;
UDAGAWA, S .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1960, 43 (02) :59-65
[7]   THE CALCINATION OF DOLOMITE .1. THE KINETICS OF THE THERMAL DECOMPOSITION OF CALCITE AND OF MAGNESITE [J].
BRITTON, HTS ;
GREGG, SJ ;
WINSOR, GW .
TRANSACTIONS OF THE FARADAY SOCIETY, 1952, 48 (01) :63-69
[8]   The suitability of thermally activated illite/smectite clay as raw material for geopolymer binders [J].
Buchwald, A. ;
Hohmann, M. ;
Posern, K. ;
Brendler, E. .
APPLIED CLAY SCIENCE, 2009, 46 (03) :300-304
[9]   Solid-state NMR characterisation of the thermal transformation of a Hungarian white illite [J].
Carroll, DL ;
Kemp, TF ;
Bastow, TJ ;
Smith, ME .
SOLID STATE NUCLEAR MAGNETIC RESONANCE, 2005, 28 (01) :31-43
[10]   Influence of mineral impurities on the properties of kaolin and its thermally treated products [J].
Chandrasekhar, S ;
Ramaswamy, S .
APPLIED CLAY SCIENCE, 2002, 21 (3-4) :133-142
1234