Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Assessment of Water Pollutants from Asphalt Pavement Containing Recycled Rubber in Rhode Island
In this study, hot mix asphalt (HMA) specimens with and without crumb rubber modifier (CRM) were analyzed for different environmental conditions. The CRM was added to HMA through both the wet and dry process. Cylindrical specimens were tested in the Particle Entrainment System (PES) at two different temperatures and three different pH levels. Runoff was also tested from slab and chip seal specimens subjected to light, wear, and simulated rainfall. Water samples were collected in three phases: (1) water quality extraction of individual CRM samples, (2) water quality evaluation for cylindrical HMA specimens at varying environmental conditions (pH and temperature); and (3) water quality evaluation for slab HMA and chip seal speciments under simulated rainfall. Collected water samples were tested for trace metals and organics. A total of six metals were analyzed in the laboratory, i.e., Cr, Pb, Ni, Cu, Cd, and Zn. Based on the limited scope of this effort and comparison with water quality criteria, it appears that there is no evidence in this study that there will be detrimental effect on the environment or to human health.
Assessment of Water Pollutants from Asphalt Pavement Containing Recycled Rubber in Rhode Island
In this study, hot mix asphalt (HMA) specimens with and without crumb rubber modifier (CRM) were analyzed for different environmental conditions. The CRM was added to HMA through both the wet and dry process. Cylindrical specimens were tested in the Particle Entrainment System (PES) at two different temperatures and three different pH levels. Runoff was also tested from slab and chip seal specimens subjected to light, wear, and simulated rainfall. Water samples were collected in three phases: (1) water quality extraction of individual CRM samples, (2) water quality evaluation for cylindrical HMA specimens at varying environmental conditions (pH and temperature); and (3) water quality evaluation for slab HMA and chip seal speciments under simulated rainfall. Collected water samples were tested for trace metals and organics. A total of six metals were analyzed in the laboratory, i.e., Cr, Pb, Ni, Cu, Cd, and Zn. Based on the limited scope of this effort and comparison with water quality criteria, it appears that there is no evidence in this study that there will be detrimental effect on the environment or to human health.
Assessment of Water Pollutants from Asphalt Pavement Containing Recycled Rubber in Rhode Island
R. M. Wright (Autor:in) / K. W. Lee (Autor:in) / J. G. Quinn (Autor:in) / P. Vashisth (Autor:in) / C. M. Reddy (Autor:in)
1999
122 pages
Report
Keine Angabe
Englisch
Water Pollution & Control , Solid Wastes Pollution & Control , Construction Equipment, Materials, & Supplies , Highway Engineering , Transportation , Environment , Environmental impact assessments , Water pollutants , Asphalt pavements , Tire recycling , Recycled materials , Rhode Island , Hot mix paving mixtures , Trace elements , Metals , Organic compounds , Benzothiazoles , Water quality , Water sampling , Chemical analysis , Pavement wear , Surface runoff , Rainfall , Light conditions , Ambient temperature , Crumb rubber modifiers
Assessment of Water Pollutants from Asphalt Pavement Containing Recycled Rubber in Rhode Island
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