relation: https://khub.utp.edu.my/scholars/4737/ title: Effect of Na/Al and Si/Al ratios on adhesion strength of geopolymers as coating material creator: Irfan Khan, M. creator: Azizli, K. creator: Sufian, S. creator: Man, Z. description: In this study fly ash based aluminosilicate coatings were formulated and the effect of the Na/Al, Si/Al ratios, and curing time upon adhesion strength of geopolymeric coating was measured using Elcometer 108. Geopolymer gained their maximum adhesion within first three days. After 3 days curing on 60oC resulted into a maximum adhesion strength of 10MPa at Si/Al=3 and Na/Al=1.0. Micro structural analysis and Infra red spectroscopy was used to study the geopolymerisation process. Surface profile of fly ash particles shown that degree of reactivity has a direct relation with their surface roughness. © 2014 Trans Tech Publications, Switzerland. publisher: Trans Tech Publications Ltd date: 2014 type: Article type: PeerReviewed identifier: Irfan Khan, M. and Azizli, K. and Sufian, S. and Man, Z. (2014) Effect of Na/Al and Si/Al ratios on adhesion strength of geopolymers as coating material. Applied Mechanics and Materials, 625. pp. 85-89. ISSN 16609336 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84914145161&doi=10.4028%2fwww.scientific.net%2fAMM.625.85&partnerID=40&md5=dcfc2351416edf58c4e269ab96e578c8 relation: 10.4028/www.scientific.net/AMM.625.85 identifier: 10.4028/www.scientific.net/AMM.625.85