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原文传递 MIX DESIGNS AND AIR QUALITY EMISSIONS TESTS OF CRUMB RUBBER MODIFIED ASPHALT CONCRETE.

题名：	MIX DESIGNS AND AIR QUALITY EMISSIONS TESTS OF CRUMB RUBBER MODIFIED ASPHALT CONCRETE.
作者：	Baker-RF; Connolly-E
关键词：	MIX-DESIGN; AIR-QUALITY; EMISSION-TESTS; CRUMB-RUBBER; ASPHALTIC-CONCRETE; WET-PROCESS; DRY-PROCESS; FRICTION-COURSE; RECYCLED-PAVEMENTS; GAP-GRADING; RESURFACING-; PAVEMENT-WIDENING; BITUMINOUS-MIXING-PLANTS; HYDROCARBON-EMISSIONS; CARBON-MONOXIDE; PARTICULATE-EMISSIONS; OPACITY-; ODORS-; RAVELING-; SURFACE-COURSES; BASE-COURSES; CRUSHED-GLASS
摘要：	The mix design and air quality asphalt plant emissions testing of crumb rubber modified (CRM) bituminous concrete mixes are described. The wet process and the dry process were used to incorporate crumb rubber into standard bituminous concrete mixes, into an open graded friction course (OGFC) mix, into a recycled rubber reclaimed asphalt pavement (RAP) mix, and into a gap-graded proprietary mix. The mix gradations are presented for six CRM bituminous concrete pavement-resurfacing and lane-widening projects. Asphalt plant emissions testing data are presented for the projects. Mix designs were developed successfully for three wet process CRM mixes using 10%, 15% and 18% crumb rubber by weight of an AC-20 or AC-10 asphalt cement. The emissions tests indicated that total hydrocarbons, carbon monoxide, and particulate emissions for two of the mixes were within state of New Jersey emissions limits. The opacity and odor surveys indicated acceptable emissions. The third wet process project indicated some emissions values above the limit. The mix design was developed successfully for a project that used 20% rubber RAP in a fine aggregate surface course. The emissions tests indicated that total hydrocarbons and particulates were within emissions limits. One carbon monoxide reading was at the limit. Proprietary gap-graded dry process CRM mixes were constructed in the surface and base course of a resurfacing project. The proprietary surface course mix raveled soon after construction and required replacement with the standard surface course. The air quality emissions tests indicated that the emissions data were higher than the standard mix and one total hydrocarbons reading was above the emissions limit. Three generic dry process mixes were constructed as a lane widening to develop CRM mix designs for surface course, base course, and base course with 10% crushed container glass. Air quality emissions values for the standard mix and CRM mix were above the emissions limits.
总页数：	Transportation Research Record. 1995. (1515) pp18-27 (1 Fig., 11 Tab.)
报告类型：	科技报告