TY - JOUR
T1 - Stabilization and Solidification of Hydrocarbon-Contaminated Soils in Concrete
AU - Ezeldin, A. Samer
AU - Vaccari, David A.
AU - Bradford, Lauren
AU - Dilcer, Samuel
AU - Farouz, Emad
AU - Mueller, Robert T.
PY - 1992/1/1
Y1 - 1992/1/1
N2 - This article describes an experimental program developed to investigate the potential for using hydrocarbon-contaminated soils as a fine aggregate replacement in concrete. Five different contaminated soil types with a total petroleum hydrocarbon content of less than 1% were investigated. For each soil type, three concrete mixtures were obtained by replacing sand with contaminated soils (10, 20, and 40% replacement ratio). The resulting concrete was tested for setting times, compression strength, flexural strength, durability, and leachability of benzene to water. The results indicate that the addition of hydrocarbon-contaminated soil adversely affects the strength of concrete. The strength reduction at each soil replacement level depends on contamination concentration, contaminant type, and soil type. The durability of the tested concrete is comparable to normal concrete. For all five soils at a 40% replacement ratio, the leachability of benzene was nondetectable after 24 h and after 10 d. After testing the leachability of artificially contaminated soils (0.5 and 3% neat benzene contamination) for 24 h, it was found that the leaching of benzene increases with the percentage of contamination. However, the fraction of benzene that leached was about 95% lower than the values for loose soils.
AB - This article describes an experimental program developed to investigate the potential for using hydrocarbon-contaminated soils as a fine aggregate replacement in concrete. Five different contaminated soil types with a total petroleum hydrocarbon content of less than 1% were investigated. For each soil type, three concrete mixtures were obtained by replacing sand with contaminated soils (10, 20, and 40% replacement ratio). The resulting concrete was tested for setting times, compression strength, flexural strength, durability, and leachability of benzene to water. The results indicate that the addition of hydrocarbon-contaminated soil adversely affects the strength of concrete. The strength reduction at each soil replacement level depends on contamination concentration, contaminant type, and soil type. The durability of the tested concrete is comparable to normal concrete. For all five soils at a 40% replacement ratio, the leachability of benzene was nondetectable after 24 h and after 10 d. After testing the leachability of artificially contaminated soils (0.5 and 3% neat benzene contamination) for 24 h, it was found that the leaching of benzene increases with the percentage of contamination. However, the fraction of benzene that leached was about 95% lower than the values for loose soils.
KW - compressive strength
KW - contaminated soils
KW - flexural strength
KW - leachability
KW - petroleum-contaminated soils
KW - setting times
KW - solid waste
KW - solidification
KW - stabilization
KW - waste disposal
KW - waste-site cleanup
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U2 - 10.1080/15320389209383403
DO - 10.1080/15320389209383403
M3 - Article
AN - SCOPUS:0002451343
SN - 1058-8337
VL - 1
SP - 61
EP - 79
JO - Journal of Soil Contamination
JF - Journal of Soil Contamination
IS - 1
ER -