Asphalt composition and method for testing, selecting and adding oil contaminated soil to asphalt for road construction

摘要

A method for recycling oil contaminated soil is disclosed as well as a method for testing and selecting soil and adding the oil contaminated soil to the asphalt used in road construction. The oil contaminated soil has a saturation of oil between about 2% and 4%. The demoisturizing of soil was done prior to conducting a sieve analysis and obtained the percentage of oil contamination in the soil. After testing, the oil contaminated soil is used as a replacement for up to 50% of the mineral aggregates used in asphalt concrete for road construction.

主权项

1. A method for testing, selecting and adding oil contaminated soil to asphalt for use in road construction, said method comprising the steps of:
a. providing a mass of oil contaminated soil having a saturation of oil ranging between 2% and 4%, selecting a sample of said soil and demoisturizing said selected sample and cleaning said sample with hot toluene; b. conducting a sieve analysis by placing said sample in a shaker and determining the aggregate grain size of said oil contaminated soil; c. determining the specific gravity of said oil contaminated soil; and d. selecting the said oil contaminated soil as a partial replacement for aggregates in asphalt concrete and adding said oil contaminated soil to said asphalt and wherein between 30 and 50% of aggregate is replaced with said oil contaminated soil.