Concrete:

• 5,000 psi @ 28 days
• 5% - 8% entrained air

Rebar:

ASTM A-615 grade 60 epoxy coated

Design criteria:

• a) Meets ComEd* spec #c4381 dated 5-1-95 and EM14928 dated 9-1-92
• b) ASTM C858
• c) Loading per ASTM C857, including:
• -Earth cover: Min 1' - 0" Max 9' - 0"
• -AASHTO HS-20 wheel load & applicable impact
• -Vertical & lateral soil pressures determined using 120 PCF soil density
• d) Ground water at 3' - 0" below grade
• e) Reinforcing cover per ACI 318

Weight:

• 6" Collar: 600#
• 12" Collar: 1,110#

Item	Description	Qty
1	Concrete collar	1
2	Stainless steel step with diamond knurl (701012 only)	1
3	Lifting loop	3
4	Rebar

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