SECTION 411
SECTION 411 -- PLANT MIX SURFACE TREATMENT
Description
L.1 This work shall consist of a leveling course when ordered and one or more courses of bituminous mixture constructed on an
existing pavement.
1.2 This work when specified shall consist of a dual purpose single course bituminous mixture which acts as a shim course and
a wearing course constructed on an existing pavement.
Materials
2,1 Materials and their use shall conform to the requirements of 401.2 as amended below:
2.1.1 Asphalt binder PG grade to be used for a particular project will be specified in a Special Provision contained in the
Proposal.
2.1.2 Unless a volumetric mix design has been performed by the Contractor, the composition of the mixtures shall conform
to historical gradation and binder content. Leveling course, AC Paver Shim, Paver Spot Drag Shim, and 3/4” PMST shall be Type
H unless otherwise noted.
Table 411-1 - Composition of Mixtures - Master Ranges
Plant Mixed Surface Treatment
Type H
3/8”
- . Sees to Percentage by Weight Passing -
3/8” ot
No. 4 fe
NO :
- __No. 30 _
No. 50
No. 100
No. 200 0
oe . _ ae “Percentage of Total Mix, _
Asphalt Cement 6.25. | 6.7 7.25
2.1.3 Blotter materials shall be sand conforming to the requirements of Table 411-2.
Table 411-2 -- Blotter Material
_Sieve Size Percentby Weight Passing
100
Construction Requirements
3.1 Mixing plants shall be as prescribed in 401.3.1.
3.2 Mixing and storage shall conform to 401.3.1.6.11, 401.3.6, and 401.3.7 with the following modifications:
3.2.1 If the aggregate contains sufficient moisture to cause foaming in the mixture, it shall be removed from the bins. The
quantity of cold aggregate fed to the dryer shall be governed by the ability of the dryer to remove the moisture completely from
the aggregate, as determined by the Engineer.
3.3. Weighing and hauling shall conform to 401.3.8.
2016 NHDOT
Go To=) TOC Division 100 Division 200 Division 300 Division 400 Standard
Division 500 = Division 600 Division 700 Specifications
