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In-depth survey report: field evaluation of Cedarapids engineering controls designed to reduce occupational exposures during asphalt paving operations; manufacturer: Cedarapids, Inc.; paving contractor: Milestone Contractors; paving location: Tippecanoe County, Indiana, report no. CT-208-18a.

Authors
Mead-KR; Mickelsen-RL; Shulman-SA
Source
NIOSH 2000 Apr; :1-46
NIOSHTIC No.
20000630
Abstract
Researchers from the National Institute for Occupational Safety and Health (NIOSH) evaluated a first-generation engineering control designed to capture and remove fugitive asphalt emissions during asphalt paving. The Cedarapids engineering control evaluation was completed as part of a Department of Transportation (DOT) project to evaluate the effectiveness of engineering controls on asphalt paving equipment. The scope of this report is limited to the Cedarapids phase two (field) evaluation of a single engineering control installed on a Cedarapids Model CR411 asphalt paving machine. The tested design consisted of two exhaust hoods (one per side) mounted above the auger area. A single rubber flap attached to the rear edge of both exhaust hoods and extended over the remaining auger area between the paver and the screed. Two exhaust fans (one per hood) removed air from the enclosed auger area. The captured air was discharged within a hot-gas mixing box (muffler), where it combined with hot exhaust from the paver engine prior to exiting through a single paver exhaust stack.
Keywords
Asphalt-fumes; Control-technology; Exhaust-ventilation; Organic-vapors; Region-5
CAS No.
8052-42-4
Publication Date
20000301
Document Type
Field Studies; Control Technology
Fiscal Year
2000
NTIS Accession No.
PB2000-105168
NTIS Price
A05
Identifying No.
ECTB-208-18a
NIOSH Division
DPSE; DART
Priority Area
Control Technology & Personal Protective Equipment
SIC Code
1611
Source Name
National Institute for Occupational Safety and Health
State
OH; LA
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