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U.S. Department of Energy
Office of Scientific and Technical Information

Hanford protective barriers program: Status of asphalt barrier studies - FY 1989

Technical Report ·
DOI:https://doi.org/10.2172/5450019· OSTI ID:5450019
The Hanford Protective Barrier Program is evaluating alternate barriers to provide a means of meeting stringent water infiltration requirements. One type of alternate barrier being considered is an asphalt-based layer, 1.3 to 15 cm thick. Evaluations of these barriers were initiated in FY 1988, and, based on laboratory studies, two asphalt formulations were selected for further testing in small-tube lysimeters: a hot rubberized asphalt and an admixture of cationic asphalt emulsion and concrete sand containing 24 wt% residual asphalt. Eight lysimeters containing asphalt seals were installed as part of the Small Tube Lysimeter Test Facility on the Hanford Site. Two control lysimeters containing Hanford sand with a surface gravel treatment were also installed for comparison. 5 refs., 13 figs., 1 tab.
Research Organization:
Pacific Northwest Lab., Richland, WA (USA)
Sponsoring Organization:
DOE/NE
DOE Contract Number:
AC06-76RL01830
OSTI ID:
5450019
Report Number(s):
PNL-7153; ON: DE90003401
Country of Publication:
United States
Language:
English