Performance of Reactive Powder Concrete Containing Arsenic
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Abstract
A mixture of arsenic contaminated soil and reactive powder concrete (RPC) was developed to study the effect of arsenic contaminated soil on RPC mortar and the effectiveness of the mortar in containing the contaminant. The sufficient containment of arsenic contaminated waste products is important to protection of ground and surface water sources. A three phase experiment was designed to study the permeability, absorption coefficients, and Toxicity Characteristic Leaching Procedure (TCLP) leachate concentrations resulting from the application of a range of arsenic concentrations. The results showed that the permeability values for mixes containing different arsenic concentrations did not increase noticeably with adequate curing time. The percentage of absorption slightly increased with increasing arsenic content as did the TCLP leachate concentrations. Statistical analyses, Analysis of Variance (ANOVA) and Paired T-test, were performed to analyze percent absorption, and TCLP results. Based on the results it was concluded that percent absorption decreased significantly with increase in curing time. Although, the TCLP concentrations increased with increased curing time, the increase was not statistically significant.
- B. D. Bone, et al., “Guidance on the Use of Stabiliza-tion/Solidification for the Treatment of Contaminated Soil,” Science Report: SC980003/SR1, Environmental Agency, Bris-tol, 2004.
- A. Al-Tabbaa and A. S. R. Perera, “Stabiliza-tion/Solidifi- cation Treatment and Remediation,” Taylor and Francis Group, London, 2005. doi:10.1201/9781439833933
- G. R. Qian, J. Shi, Y. L. Cao, Y. F. Xu and P. C. Chui, “Properties of MSW Fly Ash–Calcium Sulfoaluminate Cement Matrix and Stabiliza-tion/Solidification on Heavy Metals,” Journal of Hazardous Materials, Vol. 152, No. 1, 2008, pp. 196-203. doi:10.1016/j.jhazmat.2007.06.118
- US Environmental Protection Agency, “Solidification/ Stabilization Resource Guide,” EPA Contract Number: 542-B-99-002, 1999.
- US Environmental Protection Agency, “Solidification/ Stabiliza-tion and Its Application to Waste Materials,” EPA Contract Number: 530/R-93/012, 1993.
- B. I. Silveira, A. E. M. Dantas, J. E. M. Blasques and R. K. P. Santos, “Effectiveness of Cement-Based Systems for Stabilization and Solidification of Spent Pot Liner Inorganic Fraction,” Journal of Hazardous Materials, Vol. 98, No. 1-3, 2003, pp. 183-190. doi:10.1016/S0304-3894(02)00317-5
- B. C. Willis, M. M. Howie and R. C. Williams, “Public Health Reviews of Haz-ardous Waste Thermal Treatment Technologies-A Guidance Manual for Public Health Assessors,” Agency for Toxic Sub-stances and Disease Registry, Division of Health Assessment and Consultation, Atlanta, 2002.
- M. D. Lagrega, P. L. Buckingham and J. C. Evens, “Hazardous Waste Management,” McGraw-Hill, Boston, 1994.
- J. R. Conner, “Guide to Im-proving the Effectiveness of Cement-Based Solidifica-tion/Stabilization,” Portland Cement Association, Skokie, 1997.
- A. Adaska, S. W. Tresouthick and P. B. West, “So-lidification/Stabilization of Wastes Using Portland Cement,” Portland Cement Association, Skokie, 1998.
- S. Dawadi, M. R. Hansen and B. W. Berdanier, “Encapsulation of Con-taminated Soil in Concrete Mortar,” Ame- rican Concrete In-stitute Materials Journal, Vol. 101, No. 5, 2004, pp. 347-352.
- M. Leist, R. J. Casey and D. Caridi, “The Fixa-tion and Leaching of Cement Stabilized Arsenic,” Waste Man-agement, Vol. 23, No. 4, 2003, pp. 353-359.
- E. F. O'Neil, C. E. Dauriac, J. A. Bickley and S. K. Gilliland, “Development of Reactive Powder Concrete Pro- ducts in the United States Construction Market, An International Perspective,” American Concrete Institute, Farmington Hills, 1995.