Where can I find manhole cover test procedure for AASHTO H-20, HS-20? 1

[CoolDude003]

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]

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]

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]

Thanks buster.

 

[bridgebuster]

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.