Title:
Magnesium Phosphate Concrete for Improved Chemical Resistance of Airfield Pavements
Author(s):
Scott
Publication:
Web Session
Volume:
ws_F24_Scott.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
11/3/2024
Abstract:
Magnesium Phosphate Concrete (MPC) represents a potential alternative to portland cement concretes (PCC) for key aspects of airfield pavement design. As a consequence of their maintenance and design, aircraft operations expose airfield pavements to petroleum and oil lubricants (POL) and high surface temperatures, resulting in deterioration of the paste, aggregate exposure, scaling, and ultimately the creation of foreign object debris (FOD). Traditionally, MPCs are used strictly as a small-scale repair material for its rapid setting and high early strength gain. However, other properties of MPC due to its reaction products and lower pH make the material more resistant to chemical attack from POL exposure. This work looks to summarize a now decade long effort to design, develop, characterize, and produce MPCs for airfield applications. Which, culminated in the construction of full-scale replacements of deteriorated parking apron slabs for tilt-rotor aircraft. Additionally, 2.5 years of performance evaluations will be provided along with ongoing efforts to provide guidance towards the development of MPC systems.