Pay Item
Pay Unit
Measure to the Nearest
Pay to the Nearest
Scaling (Machine)
HR
0.5 h
0.5HR
Scaling (Manual)
CRWH
0.5 h
220.5.1 Reference Sections for Direct Payment 1 When specified, the engineer will measure and pay for:
in accordance with Section, 203 Excavation and Embankment.
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Dust Control Agent
221.1DESCRIPTION
1 This section describes the requirements for applying dust control agent.
221.2MATERIALS
1 Provide materials in accordance with the following:
Materials
Subsection
Dust Control Agent
804.4
2 Dust control agent may be either oil or a magnesium-brine solution.
221.3EQUIPMENT
1 Ensure that equipment meets the following:
Equipment
Subsection
Distributor Truck
407.3
221.4CONSTRUCTION
Before applying dust control agent, furnish the engineer with a copy of the manufacturer’s recommendations for application. Apply dust control agent per manufacturer’s recommendations.
2 Before application, scarify, reshape, and compact surfaces with hard, crusty, or tire-
polished areas or that are poorly shaped. Apply dust control agent to dry or damp surfaces that have been graded and shaped. 3 Once
applied, protect dust control agent from heavy truck traffic until cured. Slow automobile traffic may be allowed on the treated surface after complete penetration.
221.5MEASUREMENT and PAYMENT
1 The engineer will measure Dust Control Agent by the short ton [metric ton].
214
Dust Control Agent