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Precast Concrete Manhole Collars

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Concrete: 5,000 psi @ 28 days 5% - 8% entrained air Rebar: ASTM A-615 grade 60 Design criteria: a) ASTM C585 b) Loading per ASTM C857, including: -Earth cover: Min 2' - 0" Max 5' - 0" -AASHTO HS-20 wheel load & applicable impact -Vertical & lateral soil pressures determined using 120 PCF soil density c) Ground water at 3' - 0" below grade d) Reinforcing cover per ACI 318 Weight: 4" collar plain: 310# 6" collar plain: 465# 6" collar with step: 475# 12" collar plain: 915# 12" collar with step: 925# 7" x 24" ID collar: 950# |
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Item |
Description |
Qty. |
1 |
Precast concrete collar |
1 |
2 |
3/8" Ø steel lifting loop |
3 |
3 |
3/4" Ø steel step diamond knurled hot dipped galvanized required only with 6CS & 12CS |
3 | |
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