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Title: Laboratory investigation of natural cementation road surfacing for corrosion control of aluminum on Army vehicles : contractor’s supplemental report for Project F10-AR06
Authors: Ooi, Phillip S. K., 1961-
Keywords: Dirt roads--Dust control
Soil stabilization
Publisher: Construction Engineering Research Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: ERDC/CERL ; CR-18-1
Abstract: The Department of Defense (DoD) operates a massive fleet of ground vehicles in many corrosive environments. Rutting and ero-sion of unpaved roadways in training areas damage vehicles and contribute to dust brownouts. Moisture, soil, and grit depositson surfaces and undercarriages accelerate corrosion and increase maintenance requirements. These problems could be greatlymitigated by advanced road stabilization materials and practices. A geopolymer material was studied for demonstration and validation on unpaved military roads at Pohakuloa Training Area (PTA), HI, under DoD Corrosion Prevention and Control Project F10-AR06. To support that work, the University of Hawai‘i at Manoa performed a series of laboratory tests to characterize thegeopolymer and its constituent materials, such as fly ash and slag, and the resulting cementitious material when blended withlime, soda ash, basalt aggregate, and water. Material characterization and mechanical testing was performed to characterize the basalt aggregate. Geopolymer mechanicalproperties were then characterized in unconfined compression and four-point bending tests. Microstructural and mineralogicalcharacteristics of the constituents and geopolymer were characterized using x-ray fluorescence, scanning electron microscopywith energy dispersive spectroscopy, and x-ray diffraction. The 28-day geopolymer unconfined compressive strengths averagedabout 2,000 psi and the modulus of rupture averaged about 290 psi.
Description: Contract Report
Gov't Doc #: ERDC/CERL CR-18-1
Rights: Approved for Public Release; Distribution is Unlimited
Size: 135 pages/8.112 Mb
Appears in Collections:Contract Report

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