Geopolymers based from rice husk ash: A polymer modified and water activated one-part mix with self-healing properties for possible construction and coating applications
Clicks: 1
ID: 285077
2021
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
0.0
/100
1 views
0 readers
AI Quality Assessment
Not analyzed
Readership in this journal
Ranked #2,433 of 3,757 articles by views in Malay Journal
Most read
Least read
Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 3,757 in total.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
Geopolymers are polycondensation polymers made from alumina and silica molecules forming an amorphous structure and synthesized under an alkaline medium. However, usual geopolymer formulations involve more than two components and would require special handling. If this kind of system is intended to be commercialized, it will not attract consumers due to storage, handling, and ease of preparation concerns. Thus, creating a one-part system where only water is added to a prepared mix containing dry components is more practical and somewhat similar to how an ordinary Portland cement is prepared. In this study, a geopolymer made from rice husk ash was prepared by just adding water. These geopolymers are applied as a coating material on a metal substrate. The amount of water added to the geopolymer mix was optimized, and that the water-to-solids ratio of 1.50 has produced the highest adhesion strength of 1.04 MPa among the trials performed. To further improve the adhesion strength and improve its workability, adding a 5 % vinyl acetate-ethylene redispersible dry polymer significantly increased the geopolymer's adhesion strength by 152 %, resulting in 2.63 MPa. Also, self-healing agents were incorporated into the geopolymer mix to allow end-users to save on minor repairs and cracks. These self-healing agents were synthesized using sodium silicate and aluminate solutions, encapsulating them in a polyurea shell. Incorporating these self-healing agents allowed the cured and then intentionally damaged geopolymer to repair itself for 24 hours through a water curing method. Observations of the microstructure of these materials were done using SEM. Also, the thermal properties of the geopolymers were analyzed using TGA. Finally, after conducting these optimizations, a final formulation that incorporates all the components were provided, and end-users can have this as a starting guide for a one-part RHA-based self-healing geopolymer.
| Reference Key |
persistent_1760654555_68f174dbea880
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | Lira, Brandon Cyril S |
| Journal | Malay Journal |
| Year | 2021 |
| DOI |
DOI not found
|
| URL | |
| Keywords | Keywords not found |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.