Laserfiche WebLink
Y <br /> Although classified as a light duty road, heavy e-" <br /> been using the road on a routine basis. However, <br /> the road does not require much turning which can <br /> damaging to sc pavements. A need has not been de:` <br /> for pavement upgrading with a chip seal or other i. <br /> surfaces. However, the thermal loading of the upe <br /> months may significantly plasticize the pavement. <br /> prudent to continue to monitor the performance Of <br /> demonstration road and to conduct additional reser <br /> petroleum contaminates mixed with asphalts. <br /> The technology cannot be universally applied to al . <br /> contaminated soils, and is not yet applicable to ;-- <br /> clay <br /> -clay soils. The applicability of this technology <br /> eum contaminates such as gasoline was not detern;_7 <br /> study. The importance of bench scale testing for z <br /> conditions cannot be overemphasized. Tests need <br /> on other hydrocarbons such as diesel oil, gasolin-I <br /> oils for asphalt mixing suitability. Less suitabl- <br /> products could be blended with more suitable mate <br /> pavements that meet design criteria. Blending exp- <br /> also be conducted with less suitable soils such as <br /> clays that are contaminated with a host of petrole'_ <br /> Air Emissions <br /> As Was the case in this study, the contaminated sc. <br /> be aerated to reduce the moisture content to may Although the cold--mix asphalt paving Q y ~ <br /> to Air pollution Control District requirements, t <br /> and aeration of petroleum contaminated soils may t <br /> Since the subject study was conducted, the South C <br /> Quality Management District in Los Angeles has is:_ <br /> 1166 which requires a 90 percent.reduction in VOC <br /> the excavation of regulated contaminated soils. r. <br /> include those which emit VOCs in concentrations ex: <br /> measured at a distance of T1- <br /> parts per million when <br /> from the surface with an organic vapor analyzer (� <br /> hexane) . Exemptions are provided for soils conta-:_ <br /> organic compounds that have an initial boiling po <br /> degrees Fahrenheit or greater, provided the soil is <br /> The use of foams to control VOC emissions from t <br /> soil during excavation and mixing may also be li �� ' <br /> have a significant noisture content that would ro' <br /> capability of the asphalt blending with the soil. <br /> soils from arid regions may have a low enough ini* <br /> allow restricted foam application. <br /> j REFERENCES <br />