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313SUPERPAVE ASPHALT MIXTURE DESIGN, STANDARD CONSTRUCTION, BASE COURSE

PA · 2026 Standard SpecificationsBook pages 226227View official source ↗

344.1 344.2(d)

344.1DESCRIPTION —This wor k consists of in -place pulverizing and mixing a combination of existing

roadway material layers, stabilizing additives, and imported aggregate or RA P material, as required, to specified depths and grading, and compacting the mixed materials to form a new pavement base layer upon which a n asphalt overlay , or a surface treatment is applied. This work is defined as full -depth reclamation

(FDR), and often includes the incorporation of additional materials based on an approved FDR mix design .

344.2MATERIAL —

(a)Reclaimed Material from Existing Roadway. Pulverize and mix existing roadway material layers ,

which may include bound pavement layers, aggregate subbase material, and subgrade material , such that 95% of the material passes the 2 -inch sieve.

(b)Aggregate.
1.General. Provide fine or coarse aggregate from approved aggregate producers listed in Bulletin

14 or provide reclaimed aggregate material (RAM) meeting the specified size (e.g., AASHTO No. 57) as required by the approved mix design .

2.Fine Aggregate. Section 703.1, Type A or B.
3.Coarse Aggregate. Section 703.2, Type A, B, or C.
(c)Reclaimed Asphalt Pavement (RAP) Material from Other Roadways or Projects. Provide

processed RAP material with 95 % passing the 2 -inch sieve.

(d)Stabilizing Additives. Provide one or more of the stabilizing additive materials listed below as

included in the approved mix design. Potential additives are not limited to the materials listed below. Those listed below include references to sections with additional information.

1.Emulsified Asphalt Material.

1.a Emulsified Asphalt Material . Section 702, Class CMS -2, SS -1h, CSS -1h, SS-1hP, HFMS -2 or CSS -1hP.

2.Chemical.

2.a Portland Cement. Section 701

2.a.1 Portland Cement Slurry . Section 701 Portland Cement Slurry must be produced at a concrete plant listed in Bulletin 42 and supplied in Ready Mix Concrete Trucks approved by the DME/DMM . Other slurries must be provided in distributor and tanker trucks equipped with a recirculating pump and/or agitation system to prevent settling of the materials before application.

2.a.1.a Admixtures . Section 711.3

2.b Hydrated Lime. Section 723

2.c Supplementa ry Cementitious Material. Section 724

2.d Lime Pozzolan. Section 725

3.Calcium Chloride . Section 721

344.2(d) 344.3(a)

(e)Water. Section 720.2
(f)FDR Mix Design. Select one or more stabilizing additives based on the composition of the existing

roadw

Source: Pennsylvania Department of Transportation Specifications, 2026 Edition. Pages 226227 of 1,522.