Fly ash based geopolymer thin coatings on metal substrates and its thermal evaluation

Temuujin, Jadambaa; Minjigmaa, A.; Rickard, William; Lee, Melissa; Williams, Iestyn; Van Riessen, Arie

doi:10.1016/j.jhazmat.2010.04.121

Access Status

Fulltext not available

Authors

Temuujin, Jadambaa

Minjigmaa, A.

Rickard, William

Lee, Melissa

Williams, Iestyn

Van Riessen, Arie

Date

2010

Type

Journal Article

Metadata

Show full item record

Citation

Temuujin, Jadambaa and Minjigmaa, Amgalan and Rickard, William and Lee, Melissa and Williams, Iestyn and van Riessen, Arie. 2010. Fly ash based geopolymer thin coatings on metal substrates and its thermal evaluation. Journal of Hazardous Materials. 180 (1-3): pp. 748-752.

Source Title

Journal of Hazardous Materials

DOI

10.1016/j.jhazmat.2010.04.121

ISSN

03043894

School

Department of Imaging and Applied Physics

Remarks

URI

http://hdl.handle.net/20.500.11937/27936

Collection

Curtin Research Publications

Abstract

Class F fly ash based Na-geopolymer formulations have been applied as fire resistant coatings on steel.The main variables for the coating formulations were Si: Al molar and water: cement weight ratios. Wehave determined that the adhesive strength of the coatings strongly depend on geopolymer composition.The ease with which geopolymer can be applied onto metal surfaces and the resultant thickness depend on the water content of the formulation. Adhesive strengths of greater than 3.5MPa have been achieved on mild steel surfaces for compositions with Si:Al of 3.5. Microstructure evolution and thermal properties of the optimised coating formulations show that they have very promising fire resistant characteristics.