ashraf-resistanceofgeopolymer-.pdf (39.44 MB)
Resistance of Geopolymer, Epoxy and Cement Mortar to Hydrocarbon-Based Synthetic Engine Lubricant, Hydraulic Fluid, Jet Fuel and Elevated Temperatures
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posted on 2022-01-01, 00:00 authored by Sukanta Shill, Safat Al-Deen, Mahmud AshrafMahmud Ashraf, Estela Oliari GarcezEstela Oliari Garcez, Mahbube SubhaniMahbube Subhani, Muhammad Monowar HossainDue to routine maintenance of aircraft on the concrete pavement at army airbases, a large part of the pavement surface is often found saturated with different hydrocarbon-based oil, fuel, and fluid. In addition, the pavement concrete is subjected to the aircraft’s exhaust temperature during operation. This study examined the resistance ability of 3 different cementitious materials: (i) epoxy, (ii) fly ash (FA) based geopolymer with various alkali to fly ash (AL/FA) ratios and (iii) Portland cement (PC) mortar under a simulated airfield circumstance. The mortar specimens were repetitively exposed to a mixture of synthetic engine oil, hydraulic fluids, jet fuel and elevated temperatures (175 °C) for 5 months simultaneously. During the exposures, geopolymer and PC mortar both suffered saponification. The degree of saponification of geopolymer samples is found to be highly reliant on the AL/FA ratios. On the contrary, the epoxy mortar was found to be resistant to saponification. It was also found that the PC mortar developed numerous thermal cracks but epoxy and geopolymer did not experience any visual thermal cracks under the same conditions.
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Journal
Construction MaterialsVolume
2Issue
1Pagination
15 - 26Publisher
MDPI AGPublisher DOI
eISSN
2673-7108Language
enPublication classification
C1 Refereed article in a scholarly journalUsage metrics
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