ITEM 411 STABILIZED CRUSHED AGGREGATE
411.01
Description
411.02
Materials
411.03
Construction Methods
411.04 Method
of Measurement
411.05 Basis of
Payment
411.01 Description. This work consists of
placing a compacted course or courses of crushed aggregate.
411.02 Materials. Furnish materials conforming to 703.18.
411.03 Construction Methods. Construct
the subgrade according to Item 204. Use the
spreading and compaction requirements of Item 304,
except as modified by the following:
A.
Use a maximum compacted lift thickness of 6 inches (150 mm).
B.
Perform the initial compaction of the material by using crawler type tractors,
tamping rollers, trench rollers, suitable pneumatic tire equipment, or other
suitable equipment.
C.
Perform final compaction of the surface of the stabilized crushed aggregate by
using approved pneumatic tire equipment.
411.04 Method of Measurement. The
Department will measure Stabilized Crushed Aggregate by the number of cubic
yards (cubic meters), computed from the profile grade, crosssections and
typical sections, compacted in place.
When
the plans provide for the use of material in variable width or depth of course
and the quantity cannot be readily calculated from the profile grade, typical
sections and crosssections, the Department will measure the cubic yards (cubic
meters) by converting from weight using the following conversion factors:
Table 411.041
Material 
Conversion Factor 

Crushed stone 
3800 lb/yd³ 
2250 kg/m³ 
Crushed gravel 
3900 lb/yd³ 
2310 kg/m³ 
Crushed slag ^{[1]} 


less than 90 lb/ft³
(1450 kg/m³) 
3600 lb/yd³ 
2140 kg/m³ 
90 to 100 lb/ft³
(1450 to 1600 kg/m³) 
4000 lb/yd³ 
2375 kg/m³ 
more than 100 lb/ft³
(1600 kg/m³) 
4500 lb/yd³ 
2670 kg/m³ 
Granulated slag 
2800 lb/yd³ 
1660 kg/m³ 
Recycled Portland Cement Concrete 
3400 lb/yd³ 
2020 kg/m³ 
Recycled Asphalt Concrete Pavement 
4000 lb/yd³ 
2375 kg/m³ 
[1] Based on average dry rodded weight of standard size of slag aggregates on record
at the Laboratory. The conversion factors listed are the long gradation
weights. These numbers are based on the dry rodded
weights of Nos. 67, 57, or 8 gradation. The
Department will determine slag weights based on weights obtained from the
original source. 
The
Department will classify salvaged or mixed materials according to the material
that makes up the majority of the mixture.
Ensure
that the moistures of the delivered material are less than 2 percent above saturated
surface dry condition; if not, the Department will base payment on the dry
densities and dry weights.
Furnish
freight bills or certified weight bills according to 109.
411.05 Basis of Payment. The
Department will pay for accepted quantities at the contract price as follows:
Item
Unit
Description
411
Cubic
Yard
Stabilized Crushed Aggregate
(Cubic
Meter)