Can I read Effect of reactive silica sources on the properties of Na-metakaolin-based geopolymer binder on EtoBox?

Effect of reactive silica sources on the properties of Na-metakaolin-based geopolymer binder by Bezerra, B.P. (author);Morelli, M.R. (author);Luz, A.P. (author) is a Engineering article available to read on EtoBox.

What is Effect of reactive silica sources on the properties of Na-metakaolin-based geopolymer binder about?

Geopolymer has been pointed out as a potential sustainable material for applications with distinct complexities. Regarding the synthesis and processing of such materials, there are still some technical challenges associated with the particularities of the selected raw materials. This work investigated the role of reactive silica sources on the setting time, physical and mechanical properties of Na-metakaolin-based geopolymer binder. In this sense, different activating solutions (AS) were analyzed containing plain NaOH or NaOH combined with sodium silicate, or silica fume, or colloidal silica. The setting behavior, cold crushing strength and elastic modulus evolution as a function of time (up to 16 days) of the designed formulations were measured after curing the prepared samples at 40 °C for 24 h. The most promising compositions were then fully characterized and had their properties evaluated after thermal treatments in the 200 to 1000 °C temperature range. The results indicated that the best performance was obtained for the geopolymer containing colloidal silica (GP-CS) in its activating solution. Such binder also exhibited fast setting, good thermal stability, suitable cold crush

Who reads Effect of reactive silica sources on the properties of Na-metakaolin-based geopolymer binder?

Author

Bezerra, B.P. (author);Morelli, M.R. (author);Luz, A.P. (author)

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)