Advances in Understanding the Synthesis Mechanisms of New Geopolymeric Materials

RETRACTED ARTICLE: Resistance to acid attack, abrasion and leaching behavior of alkali-activated mine waste binders

“…That indicates that any Si-Al materials could be alkali-activated. Over the last years several authors have reported research in a large number of aspects related to alkali-activated based binders such as: dependence of the nature of source materials (alkali-activated binders synthesised from calcined sources show a higher compressive strength than from raw materials) [5][6][7], immobilization of toxic metals [8][9][10], reaction mechanisms and hydration products [11][12][13][14], the role of calcium in alkaliactivation [15][16][17][18][19], manufacture operations [20,21], and even the development of lightweight building materials [22]. According to some authors [23] durability is the most important issue on determining the success of these new materials ( Fig.…”

An overview on the potential of geopolymers for concrete infrastructure rehabilitation

“…But they are also Geo-polymers, because they are inorganic, hard and stable at high temperature and also noninflammable. Over the last years several authors have reported research in a large number of aspects related to geopolymers such as: dependence of the nature of source materials (alkali-activated binders synthesised from calcined sources show a higher compressive strength than from raw materials) [9,10], immobilization of toxic metals [11][12][13], reaction mechanisms and hydration products [14][15][16][17][18], the role of calcium in geopolymerization [19][20][21], the development of lightweight building materials [22], durability issues [23][24][25] and even LCA [26,27]. However, very few studies in the geopolymer field have addressed the rehabilitation of deteriorated concrete structures.…”

Elevated-Temperature Performance, Combustibility and Fire Propagation Index of Fly Ash-Metakaolin Blend Geopolymers with Addition of Monoaluminium Phosphate (MAP) and Aluminum Dihydrogen Triphosphate (ATP)

“…On the other hand, the geopolymer incorporated with aluminum phosphate content the element of P in the geopolymer matrix, which proved the incorporation of P into the geopolymer framework. Mackenzie et al [ 41 ] reported that a portion of the tetrahedral geopolymer network has been replaced with P as evidenced by the NMR spectrum when incorporating aluminum phosphate into metakaolin geopolymer. The result supported that increment of compressive strength result as shown in Figure 3 .…”