Influence of gibbsite and quartz in kaolin on the properties of metakaolin-based geopolymer cements

2015 ◽  
Vol 107 ◽  
pp. 188-194 ◽  
Author(s):  
H.K. Tchakoute ◽  
C.H. Rüscher ◽  
J.N.Y. Djobo ◽  
B.B.D. Kenne ◽  
D. Njopwouo
Keyword(s):  
Geopolymer Cements

scholarly journals Preparation of low-cost nano and microcomposites from chicken eggshell, nano-silica and rice husk ash and their utilisations as additives for producing geopolymer cements

2020 ◽  
Vol 8 (1) ◽  
pp. 149-161 ◽  
Author(s):  
H. K. Tchakouté ◽  
D. E. Tchinda Mabah ◽  
C. Henning Rüscher ◽  
E. Kamseu ◽  
F. Andreola ◽  
...  
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Low Cost ◽  
Nano Silica ◽  
Chicken Eggshell ◽  
Geopolymer Cements

scholarly journals Physicochemical Characterization of Geopolymer Binders and Foams Made from Tunisian Clay

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Imen Ben Messaoud ◽  
Noureddine Hamdi ◽  
Ezzeddine Srasra
Keyword(s):  
Compressive Strength ◽  
Alkaline Solution ◽  
Open Porosity ◽  
Physicochemical Characterization ◽  
Cost Effective ◽  
Solution Concentration ◽  
Geopolymer Cements ◽  
Kaolinitic Clay ◽  
South Tunisia

Illito-kaolinitic clay rich in hematite from south Tunisia was investigated in view of producing geopolymer materials. Geopolymers with two different densities were elaborated: cement and foam. The effects of activator concentrations on compressive strength, water absorption (durability), open porosity, and bulk density of geopolymers cement were examined, in order to assure optimal geopolymerization conditions. Geopolymer cements aged 28 days with optimum performances were achieved for 13 M of alkaline solution concentration. At these conditions, the compressive strength of prepared geopolymer reaches 27.8 MPa. The addition of silica fume to reactant geopolymer mixture induces modification of geopolymer density and decrease in the compressive strength of the final product. Geopolymer materials based on calcined Tunisian clay can be suggested as sustainable and cost-effective cement that may be applied to alternate Portland cement in many construction applications.

scholarly journals Microstructure and mechanical, physical and structural properties of sustainable lightweight metakaolin-based geopolymer cements and mortars employing rice husk

2019 ◽  
Vol 7 (2) ◽  
pp. 199-212 ◽  
Author(s):  
Hamed I. Riyap ◽  
Christelle N. Bewa ◽  
Charles Banenzoué ◽  
Hervé K. Tchakouté ◽  
Claus H. Rüscher ◽  
...  
Keyword(s):  
Structural Properties ◽  
Rice Husk ◽  
Geopolymer Cements

Comparison of metakaolin-based geopolymer cements from commercial sodium waterglass and sodium waterglass from rice husk ash

2016 ◽  
Vol 78 (3) ◽  
pp. 492-506 ◽  
Author(s):  
Hervé K. Tchakouté ◽  
Claus H. Rüscher ◽  
Sakeo Kong ◽  
Elie Kamseu ◽  
Cristina Leonelli
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Geopolymer Cements ◽  
Sodium Waterglass

scholarly journals Alkali aluminosilicate geopolymers as binders to encapsulate strontium-selective titanate ion-exchangers

2019 ◽  
Vol 48 (32) ◽  
pp. 12116-12126 ◽  
Author(s):  
Xinyuan Ke ◽  
Susan A. Bernal ◽  
Tsutomu Sato ◽  
John L. Provis
Keyword(s):  
Ion Exchanger ◽  
Ion Exchangers ◽  
Final Disposal ◽  
Geopolymer Cements

Geopolymer cements can be used to solidify strontium-contaminated ion exchanger particles, forming a stable monolith potentially suitable for final disposal.

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