Influence of Solids-to-liquid and Activator Ratios on Calcined Kaolin Cement Powder

Morphology and Properties of Geopolymer Coatings on Glass Fibre-Reinforced Epoxy (GRE) pipe

“…The SEM image analysis of kaolin and white clay based geopolymer coating (Figure 2 (b) and Figure 3 (b)) obviously shows the raw particles has been stimulated by the alkaline activator solution with alters at the edges of the plate-like particles and became more compact [28,29]. The microstructure of silica sand based geopolymer coating showed more homogeneous structure with more intervening materials was examined (Figure 4 (b)).…”

“…However, the rounded corners and spherical quartz particle of different sizes appears in raw materials silica sand can be observed in Figure 4 (a). Kaolin, white clay and silica sand are suitable to be use as main sources materials in geopolymer coating application because of the particles with broken edges appear contributed to the increase of the total surface charge and the reaction during geopolymerization [28].…”

Manufacturing of Fire Resistance Geopolymer: A Review

“…The fundamental of geopolymerization are the dissolution of solid aluminosilicate oxide M-OH solution where M is the class of alkali metal ( mostly Na and K ), dissolution of dissolved Al and Si complexes to an inter-particle space, then the formation of a gel phase by polymerization between silicate solution and Al and Si complexes, and the hardening formed in gel phase at the finishing steps [17]. The mixture of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) is the alkaline solution that often used [18].…”

Interrelationship of Kaolin, Alkaline Liquid Ratio and Strength of Kaolin Geopolymer

“…This is mainly because of its environmental friendly nature, specific performances of high temperature resistance, high compressive strength, low density and low permeability [5]. Geopolymer source materials are materials rich in aluminosilicate such as kaolin, fly ash, metakaolin,and slag [6][7][8][9]. Geopolymers are class of largely X-ray amorphous aluminosilicate materials that is produced when solid source material powders are mixed with concentrated alkali metal silicate or hydroxide solution [10].…”