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Home / DOT Specifications / Pennsylvania / Publication 408 — Specifications / 656
Incidental Construction (600-699)

656PAVED SHOULDERS, TYPE 6, TYPE 6-F, TYPE 6-S, AND TYPE 6-SP

PA · 2026 Standard SpecificationsBook pages 658–661View official source ↗

703.3(a) 703.4(b) mass (weight).

(b)Gradation. Conforming to the following gradation, determined according to PTM No. 616:

• Passing 50 mm (2 -inch) sieve —100%

• Passing 4.75 mm (No. 4) sieve —15% to 60%

• Passing 150 µm (No. 100) sieve —0% to 30%

703.4ANTI -SKID MATERIAL —

(a)General. For use on ice or snow -covered pavement surfaces, furnish anti -skid material conforming to

Table E from a producer or agent listed in Bulletin 14 . Do not use material containing metal, glass, or substances harmful to automotive equipment and vehicles. Use material reasonably free of deleterious substances or foreign materials including, but not limited to, dirt, shale, slate, incinerated asphalt coal mine waste, and within the maximum limits of the individual deleterious and total deleterious materials according to Table B, Type C.

(b)Description.
1.Type AS1. Either natural sand, manufactured sand (except slag aggregates) , or a combination of

the two conforming to the following requirements:

• Bulk Density (Unit Weight). Minimum 70 pounds per cubic foot and not exceeding 110 pounds per cubic foot determined according to AASHTO T 19 .

• Crushed Fragments. If natural sand is furnished, not less than 35% of the fragments retained on the 2.36 mm (No. 8) sieve are required to be crushed fragments, determined according to ASTM D 5821 .

• Iron. Total of individual anti -skid particles containing metallic iron may not exceed 1.0% by mass

(weight)of material, determined by dividing the mass (weight) of such particles retained on the 4.75

mm (No. 4) sieve by the total dry mass (weight) of the sample.

2.Type AS2 and AS3 . Crushed stone or crushed gravel conforming to the following requirements:

• Bulk Density (Unit Weight). Minimum 70 pounds per cubic foot and n ot exceeding 105 pounds per cubic foot determined according to AASHTO T 19.

• Los Angeles Abrasion . Abrasion loss not exceeding 55%, determined according to AASHTO T 96, Gradation D .

• Crushed Fragments. If crushed gravel is furnished, not less than 60% of the fragments retained on the 4.75 mm (No. 4) sieve are required to be crushed, one face, determined according to AS TM D5821.

• Iron. Total of individual anti -skid particles containing metallic iron may not exceed 1.0% by weight of material, determined by dividing the mass (weight) of such particles retained on the 4.75 mm (No. 4) sieve by the total dry mass (weight) of the sample.

3.Type AS4. Crushed slag conforming to the following requirements:

• Bulk Density (Unit Weight). Minimum 70 pounds per cubic foot and not exceeding 105 pounds per cubic foot determined according to AASHTO T 19.

• Los Angeles Abrasion. Abrasion loss not exceeding 55%, determined ac

Source: Pennsylvania Department of Transportation Specifications, 2026 Edition. Pages 658–661 of 1,522.
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