ASTM C443 vs ASTM C361?

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bradlelf

Licensed Professional Engineer
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I typically spec ASTM C361, D-25 for RCP outfalls of stormwater facilities, per 378 code. I have been looking at a lot of project specs lately that reference ASTM C443 instead of C361.

I really cant find a difference between the two; just getting frustrated that NRCS 378 specs dont match AIA standard specs.

Anyone spec C443 before for a SWM outfall?

 
Hopefully this helps?

http://www.icpipe.com/products/sanitarysewers.asp

ASTM C 443 Joints for Circular Concrete Sewer and Culvert Pipe, Using Rubber Gaskets
C 443 joints are intended for use with pipe manufactured to meet the requirements of ASTM C 14 or ASTM C 76 and may be used with either bell and spigot or tongue and groove pipe. The joint is made up of concrete surfaces, with a compression type rubber gasket. These joints are normally used in sanitary sewers to hold infiltration and exfiltration to a practical minimum and are adequate for hydrostatic heads up to 30'.


ASTM C 361 Reinforced Concrete Low-Head Pressure Pipe (Joints)
C 361 joints are employed for use with pipe manufactured to meet the requirements of ASTM C 76. The joint is made up of concrete surfaces with a groove on the spigot for an O-ring rubber gasket (also referred to as a confined O-ring type joint). These joints are normally used in gravity sewers where exceptional tightness is required. This type of joint provides excellent inherent water tightness in both the straight and deflected position and meets all the joint requirements of ASTM C 443.


 
Yeah, I am familiar with the standards' just didnt know if anyone had ever spec'd 443 on SWM facility outfalls. I get into an argument with contractors on almost every project because they fail to read the plans and specifications. Always want to "value engineer" something as small as the gaskets that are called for.

 
Yeah, I am familiar with the standards' just didnt know if anyone had ever spec'd 443 on SWM facility outfalls. I get into an argument with contractors on almost every project because they fail to read the plans and specifications. Always want to "value engineer" something as small as the gaskets that are called for.




I still can't believe you bumped your own 2.5 year old thread - lol.

Not sure what to tell you. I've never seen anything used at joints for storm drain pipe other than Class C mortar. Why are you using gasket/o-rings at joints for storm drain?

It seems to me that ASTM C 443 might be more appropriate for storm drain pipe (decent water-tightness, supports full pipe flow) and ASTM C 361 might be more appropriate for sewer pipe (superior water-tightness, more suitable for partial-full gravity flow)?

 
Ptatohed, expect an answer 2.5 years from now...
smiley-music024.gif


 
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