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  1. #1
    Bobtail Member
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    Hot Asphalt Tanker - Questions!

    Hello,

    I am a law student trying to find information on the procedure that is supposed to be followed when a tanker comes to a hot mix asphalt plant to get filled up. Specifically where those procedures come from and what they are; as in where do the hoses need to go and what process needs to be done in terms of back flow and valves, to prevent back flow and protect from spray.



    Any help from anyone would be greatly appreciated.

  2. #2
    Road Train Member Cat sdp's Avatar
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    You have your terms a little mixed up. The tankers load at an
    oil terminal and deliver to the hot mix plants.

    Most of the rules and procedures are prehistoric . But I don't know a go to place where they are listed.

    If your researching injuries that happen while unloading liquid asphalt. I've done it for 25 or so years. And from what i have experienced the # 1 reason for screw ups are drivers that don't have a clue what their doing.
    When things go wrong unloading liquid, it can get ugly real fast.
    Last edited by Cat sdp; 01.09.2013 at 06.32 PM.

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  4. #3
    Medium Load Member wis bang's Avatar
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    Quote Originally Posted by Cat sdp View Post
    You have your terms a little mixed up. The tankers load at an
    oil terminal and deliver to the hot mix plants.

    Most of the rules and procedures are prehistoric . But I don't know a go to place where they are listed.

    If your researching injuries that happen while unloading liquid asphalt. I've done it for 25 or so years. And from what i have experienced the # 1 reason for screw ups are drivers that don't have a clue what their doing.
    When things go wrong unloading liquid, it can get ugly real fast.
    Very true! Handling strong corrosives and hot materials usually mean there are company procedures regarding the use of PPE.

    Every acid burn I saw was an experienced driver who got complancent in some way -or- was a receiver who's company PPE procedures was not as extensive as the carrier's.


    Hot mix plants should have procedures in place and posted; some of these places are designed so the hot materials are contained through the process to protect their employees making the unloading of the bulk material the only place where someone can get splashed, etc.

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    Bobtail Member
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    thank you.

    what I am trying to research is how to pump hot asphalt into a tanker from the plant. whether is it supposed to go into the top hole of the plug on the back, what do you do with the hose from the plant when you go to disconnect it from the tanker (as in is there a lever to stop the flow, is there a back flow process etc. ) if a plant employee is pumping into a tanker how should it be done.

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    I have never seen them loaded anywhere but through the top, from a rack. Procedures varied depending on if the flow was metered or not and if not, the driver is to determine when to shut it down, the metered racks will be shut off automatically, and most of the high volume places will have meters. The material does splash and spatter.



    During the winter months up north, hot asphalt cement is still moved, but it is from production and distribution facilities to storage terminals closer to where it will be used later. The loading practices. Much of what I picked up was from terminals along the river, and could have come in by barge or by rail.

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  8. #6
    Road Train Member Cat sdp's Avatar
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    If your asking about emptying a storage tank at a hot mix plant. There are a couple of ways this can be done. Using the plant transfer pump and going into the top of the trailer is best. On batch plants this is pretty easy to set up.

    You can use the truck pump and hook the lines up backwoods and suck product out of the plant tank and into the trailer threw the nose line. You need to be able to get very close to the storage tank your trying to empty.When your
    Done flushing the pump you would break the suction line with the pump running plug the suction hose . Then shut the trailer valve with the pump running. The pump is air locked you can do this. Disconnecting the hoses can be a little tricky.

    I only had to do this once . A tank got contaminated , ( not by me) and the state engineers wouldn't let it go.

    I wouldn't advise pumping out a plant with a truck pump ever. But a highly skilled driver with equally skilled plant operators can pull it off.

    Hope this helps you .....

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    Bobtail Member
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    that is helpful. thank you.

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