ITEM 411 STABILIZED CRUSHED AGGREGATE
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.
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. Unless otherwise specified in the Contract Documents, the Engineer will perform all compaction tests according to Supplement 1015.
411.04 Method of Measurement. The Department will measure Stabilized Crushed Aggregate
by the number of cubic yards computed from the profile grade, cross -sections 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 cross-sections, the Department will measure the cubic yards by converting from weight using the following conversion factors: TABLE 411.04-1 Material Conversion Factor Crushed stone 3800 lb/yd³ Crushed gravel 3900 lb/yd³ Crushed slag [1] less than 90 lb/ft³ 3600 lb/yd³ 90 to 100 lb/ft³ 4000 lb/yd³ more than 100 lb/ft³ 4500 lb/yd³ Granulated slag 2800 lb/yd³ Recycled Portland Cement Concrete 3400 lb/yd³ Reclaimed Asphalt Pavement 4000 lb/yd³ [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
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Source: Construction and Material Specifications, 2023 (rev. 7/17/2026) Edition. Pages 199–201 of 892. View official source ↗