Thermochemical Concrete Pavement Scaling Mechanism: Navy F/A-18 Jet Aircraft Parking Apron Problem

Abstract

Experiments were conducted to determine the mechanism of concrete "scaling" or deterioration on airfield parking aprons used by F/A-18 Navy jets. Some of the "scaling" was caused by heat from the auxiliary power unit (APU) and some was caused by phosphoric acid attack on the heated concrete. The phosphoric acid originated from hydrolysis of organic phosphates in used engine oil. The mechanism was confirmed by demonstrating that the concrete scale debris was high in phosphate content.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1998
Accession Number
ADA347038

Entities

People

  • Thomas Novinson

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acids
  • Alcohols
  • Auxiliary Power Units
  • Calcium Compounds
  • Chemical Analysis
  • Chemical Compounds
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Mass Spectrometry
  • Materials
  • Organic Compounds
  • Organic Materials
  • Phosphoric Acids
  • Spectra
  • Spectrometry
  • Spectroscopy

Readers

  • Combustion and Flow Dynamics.
  • Electrochemical Engineering/ Fuel Cell Technologies
  • Pavement Materials Engineering.