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Recycling Contaminated Spent Blasting Abrasives in Portland Cement Mortars
| Content Provider | Semantic Scholar |
|---|---|
| Author | Salt, Bryan K. Graner, Andre G. Fowler, David Loehr, Raymond C. Carrasquillo, Ramon L. |
| Copyright Year | 1994 |
| Abstract | Use of abrasive blasting to remove paint containing lead, cadmium, and chromium from steel bridges is producing contaminated spent blasting abrasives that may be classified by the Environmental Protection Agency as hazardous, because of their toxicity. Transportation and disposal of spent abrasives is difficult and costly. A potentially inexpensive and practical solution is to recycle contaminated spent blasting abrasives at the construction site in an environmentally safe manner using solidification and stabilization technology. A further benefit of recycling spent blasting abrasives is that there is no need to use landfills or hazardous waste disposal sites. The use of portland cement to solidify and stabilize spent abrasives to produce usable construction material is investigated. Recommendations provided to the Texas Department of Transportation were applied at the Rainbow Bridge in Beaumont, Texas, where the mix designs were used successfully to recycle more than 3,000 55-gal drums of spent blasting abrasives produced at the site. Recycling involved producing concrete blocks that were subsequently used as filler material in the dolphins around the bridge piers. |
| File Format | PDF HTM / HTML |
| DOI | 10.1520/STP14135S |
| Alternate Webpage(s) | http://onlinepubs.trb.org/Onlinepubs/trr/1994/1458/1458-011.pdf |
| Alternate Webpage(s) | https://doi.org/10.1520/STP14135S |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
