Ask Experts Questions for FREE Help !
Ask
    frankds's Avatar
    frankds Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Aug 5, 2008, 04:42 AM
    Crush strength of schedule 40 pvc pipe
    I'm planning on using 4" pvc schedule 40 pipe for a waste line which will be located approx 24" under our driveway.
    On occasion we have very heavy triaxle trucks using the drive way.
    Am I okay with the schedule 40 pvc for it's strenght not to crush from the weight of the trucks?
    Some folks have said it's perfectly fine, other have suggested schedule 80 pvc pipe. Thanks
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Aug 5, 2008, 05:27 AM
    My research turned up 3000 lbs. for a crush strength. However you have to factor in that this pipe will be 2 feet under a reinforced concrete driveway so the weight will be distributed. If you're still worried you could convert to schedule #80 under the drive but I think you'll be just fine with schedule #40.
    Good luck, Tom
    albinfla's Avatar
    albinfla Posts: 310, Reputation: 35
    Full Member
    		  
    #3

    Aug 5, 2008, 05:59 AM
    I agree with speedball1. However, if your driveway is not concrete you may want to re-consider. Or you may want to sleeve the pipe. On utility construction, any pipe 3" or larger requires 36" of cover here in Florida. I have put a schedule 40 steel pipe sleeve over a PVC pipe under gravel roads that have tractors, truck etc. running over them. That line was 24" deep.

    If the driveway is soft enough, eventually it will probably flatten the steel pipe too. But, if your driveway is concrete. Schedule 40 should be fine.
    Al
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
    Plumbing Expert
    		  
    #4

    Aug 5, 2008, 06:10 AM
    UniBell Labs test PVC. Here is a link that will answer your question(s) about the product:

    http://www.uni-bell.org/faq.html#q2
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Installing Closet Flange on Schedule 30 3" pipe - floor height issue [ 1 Answers ]

Hi All, I'm finishing a basement bath and have installed the floor (ceramic tile). I have a schedule 30 3" water closet waste pipe rough in. I cut the pipe flush with the tile floor and removed the plastic wrap (so I can install a flange on the outside of the pipe). I went to Lowes and...

What is schedule 40 pipe [ 1 Answers ]

What is schedule 40 pipe

What is the pipe schedule ? [ 3 Answers ]

Can you help me to know the schedule ?

Bending schedule 40 galvanised pipe [ 1 Answers ]

Is it possible to bend the schedule 40 galvanised pipe to get curve about 30-45 degrees of angle? The temperature of the water flowing in it is max 50 degrees C and the pressure is 6 bars it will be a shower connection between shower nosle and shower mixer.:mad: :mad: :confused: :mad: :confused:

Schedule A Deductions and Schedule C - No AGI [ 1 Answers ]

Hi, I am a sole proprietor (an electrician) and after finishing schedule c I basically had very little profit to report from the business. With no other Adj Gross Inc, I started to figure my itemized deductions, but with no Adj Gross Inc, how can I best use my itemized deductions? Thanks,

View more questions Search