Where can I find manhole cover test procedure for AASHTO H-20, HS-20?

Question

Where can I find manhole cover test procedure for AASHTO H-20, HS-20?

CoolDude003 (Mechanical)

(OP)

11 Apr 12 10:21

Hello all,

I work for a company that makes composite manhole covers and we would like to take testing in house. I have found a lot of ambiguous information on this and I am looking for a clear test procedure to satisfy the H-20, HS-20 standard.

Thank you

bridgebuster (Civil) · Answer 1 · 2012-04-11 12:44:21

Try looking AASHTO "Standard Specifications for Transportation Materials and Methods of Sampling and Testing" Specification M306-10 - "Drainage, Sewer, Utility, and Related Castings" (hopefully AASHTO sells individual specss because the entire manual is $$$).

Although the spec is for metal castings they do provide information on how the test is performed for H/HS loading.

Also, look at various DOT specifications for manholes and grates. They would list the acceptance criteria, some may even provide a test prcedure.

bridgebuster (Civil) · Answer 2 · 2012-04-11 12:54:30

Here's another idea: State DOT's typically maintain lists of approved products. Try calling the DOT materials engineer where your looking to market your product and find out how to get your it approved.

CoolDude003 (Mechanical) · Answer 3 · 2012-04-11 15:14:06

RE: Where can I find manhole cover test procedure for AASHTO H-20, HS-20?

CoolDude003 (Mechanical)

(OP)

11 Apr 12 15:14

Thanks buster.

bridgebuster (Civil) · Answer 4 · 2012-04-11 15:41:44

No problem; good luck. Sounds like a good product. In NYC Con Edison has been coating some of their manholes with epoxy due to some stray current accidents.

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Where can I find manhole cover test procedure for AASHTO H-20, HS-20?