Soil Stabilization at Bravo 11 Infield

Soil Stabilization at Bravo 11InfieldScott GheePavement Management SpecialistProject Date: May 15, 1999 2300 - 0730Prepared by John E. JohnsonAirfield Maintenance

Project Goals• To minimize foreign object debriscreated by the British Airline 747’sexhaust.• To stay within the EnvironmentalProtection Agency’s guidelines forfugitive dust control.

Soil Stabilization• The first phase of theproject is a “ripping” or“tilling” of the soil.• This scarificationprocess allows the dustpalliative solution towork into the soil moreefficiently.

• Steel “teeth” on theback end of the gradereffectively till the soil sothe solution can beblended in properly.

• Another example ofthe tilling process.• Here, you can seethe dust palliativesolution beingapplied to freshlytilled soil.

• This “blending” of dustpalliative solution andthe tilling process isrepeated three times toensure a thoroughhomogenous mixture.• A water distributiontruck is also usedduring the process tokeep fugitive dust downand for “prewetting”purposes.

• After a homogenousblend is achieved in thesoil, the grader then“blades” the soil tocreate a smooth andlevel surface.

• The evenly graded soilis then both pneumatictire rolled and steelroller compacted.• This process ensuresthe proper amount of airvoids are compressedout of the treated soil tocreate a hard andresilient surface.

• The final step in thestabilization process isa “topical” application ofthe dust palliativesolution.• These photos showboth a manual “hand”spray and a distributiontruck application.• This topical applicationhelps to “cement” thesurface soil with thestabilized soilunderneath.

We hope this presentation will help you to bettervisualize the process of soil stabilization. In thefuture, we plan to monitor this project’s impacton the minimization of foreign object debris.If you have any questions or commentsregarding soil stabilization or this particularproject, please contact Scott Ghee or JohnJohnson at 683 - 2619. Thank you for your timeand patience.