Durability of inorganic foam in solution: The role of alkali elements in the geopolymer network

The characterization of the behavior of inorganic foams in aqueous media is defined as a function of various parameters (initial pH value of the solution, alkaline element and aging of the foam). The final products and their microstructure depend on the alkaline cation in relation with the hydration shell. Durability tests revealed that the geopolymer foam network is based on three compounds: a dense geopolymer depending on the alkaline element, amorphous silica and M2Si2O5. For potassium foam, a fourth component was also evidenced: a zeolite that is partly responsible for the degradation of this foam.

[1]  J. V. Deventer,et al.  Use of Infrared Spectroscopy to Study Geopolymerization of Heterogeneous Amorphous Aluminosilicates , 2003 .

[2]  Hua Xu.  Geopolymerisation of aluminosilicate minerals , 2002 .

[3]  Sadaaki Yamamoto,et al.  Dissolution of Zeolite in Acidic and Alkaline Aqueous Solutions As Revealed by AFM Imaging , 1996 .

[4]  E. B. Shand,et al.  Glass Engineering Handbook , 1984 .

[5]  Joel Davis,et al.  Aqueous leachability of metakaolin-based geopolymers with molar ratios of Si/Al = 1.5 4 , 2008 .

[6]  Brian H. O'Connor,et al.  Chemical optimisation of the compressive strength of aluminosilicate geopolymers synthesised by sodium silicate activation of metakaolinite , 2003 .

[7]  R. Rawlings,et al.  Thermal and mechanical properties of a foamed glass-ceramic material produced from silicate wastes , 2007 .

[8]  S. Rossignol,et al.  Physical-chemistry of silica/alkaline silicate interactions during consolidation. Part 1: Effect of cation size , 2012 .

[9]  T. Bakharev,et al.  Resistance of geopolymer materials to acid attack , 2005 .

[10]  Emmanuel Joussein,et al.  Role of alkaline cations and water content on geomaterial foams: Monitoring during formation , 2011 .

[11]  M. Sitarz,et al.  RINGS IN THE STRUCTURE OF SILICATE GLASSES , 1999 .

[12]  N. Veldman,et al.  Structure of KLiSi2O5 and the hygroscopicity of glassy mixed alkali disilicates , 1996 .

[13]  P. Michaud,et al.  Silica fume as porogent agent in geo-materials at low temperature , 2010 .

[14]  Berrin Tansel,et al.  Significance of hydrated radius and hydration shells on ionic permeability during nanofiltration in dead end and cross flow modes , 2006 .

[15]  D. Saulov.  Application of the modified quasichemical model to solutions with strong short-range ordering , 2007 .

[16]  M. Allendorf,et al.  Thermodynamic Analysis of Silica Refractory Corrosion in Glass-Melting Furnaces , 2001 .

[17]  Ryan L. Hartman,et al.  Understanding the dissolution of zeolites. , 2007, Langmuir : the ACS journal of surfaces and colloids.

[18]  David E. Clark,et al.  Physical chemistry of glass surfaces , 1977 .

[19]  J. Deventer,et al.  Acid resistance of inorganic polymer binders. 1. Corrosion rate , 2012 .

[20]  Ángel Palomo,et al.  Alkali activation of fly ashes. Part 1: Effect of curing conditions on the carbonation of the reaction products , 2005 .

[21]  Yunsheng Zhang,et al.  Short Fiber Reinforced Geopolymer Composites Manufactured by Extrusion , 2005 .

[22]  Zsuzsi Makkai.  Science et technologie , 1983 .

[23]  Joseph Absi,et al.  Porosity control of cold consolidated geomaterial foam: Temperature effect , 2012 .

[24]  M. Grutzeck.  Zeolites synthesized from class F fly ash and sodium aluminate slurry , 2005 .

[25]  P. Michaud,et al.  Structural characterization of geomaterial foams — Thermal behavior , 2011 .

[26]  K. MacKenzie,et al.  Synthesis and thermal behaviour of potassium sialate geopolymers , 2003 .