stick vs. chain
concrete canon 11-16-2009
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on line jobs, how to handle the hose, with a stick as on these vids

http://video.concretepumping.com/video/610/the-men-in-red-part-2

or this

http://video.concretepumping.com/video/442/50-meter-system

or with a chain/rope in this vid

http://video.concretepumping.com/video/37/4-inch-system

or maybe this way?

http://video.concretepumping.com/video/139/Fun-Fun

I guess there are pro's and con's for each methode but I think the first vids are the easyest ways


pumpjockey 11-16-2009
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I'm kinda partial to the chan method.  The solid handle looks to me like it will create a sharper bend in the hose. possibly breaking the internal reinforcing, making it kink easier and causing a nasty hose-whip.  Or else it would wear at that point more, fraying the inside causing an even more solid plug and either bursting or releasing suddenly.

 

Ever gone over the handle bars of your bicycle or motor cycle?  Multiply that by a factor of 20 when it whips on you.  At least a chain isn't a solid obstacle to hit.

Some would not even recommend providing a tool for the crew to handle the hose, citing liability reasons.  I'm not sure about that.  Does the ACPA have a position?

Rob Edwards?

How about the hooks for guys to pull the hose back?

Also any word on lifting trusses with a boom?  Todd, were'nt you going to have Rob address that?  Or is he still looking for an 11 foot pole?


Justapumper 11-16-2009
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 Lifting anything other than 1 hose and, 1pipe is a no no. It is evey one of the pump safety manuals that come with your equipment. It is also has its own Safety Sticker that states the boom is no a crane.

 To the main subject. I let the customer use what he likes to use. The only thing I will ever supply are skids for moving the hose around easier on rebar and wire. It keeps the clamps from catching on either. If you give them rope chain or sticks you are liable if they break or someone gets hurt.


Justapumper 11-16-2009
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 Lifting anything other than 1 hose and, 1pipe is a no no. It is evey one of the pump safety manuals that come with your equipment. It is also has its own Safety Sticker that states the boom is not a crane.

 To the main subject. I let the customer use what he likes to use. The only thing I will ever supply are skids for moving the hose around easier on rebar and wire. It keeps the clamps from catching on either. If you give them rope chain or sticks you are liable if they break or someone gets hurt.


pumpjockey 11-16-2009
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I know what a pump is to be used for, but Todd said that he was going to get the official run-down from Rob Edwards on the topic, I was wondering if something had been prepared on the topic.  I know pumpers are asked to fly in power trowels all the time, and it SEEMS harmless enough.  I was hoping Rob may come back with a Structural Engineers rational to perhaps put this issue to rest once and for all.

I'd also like to know what the ACPA has to say about line pumping system tools.


b-alto 11-16-2009
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I use a Tee handle myself, like the one in the first video. It works great. Leave the hose on the ground as much as possible and direct the handle. It will wear the tip hose quicker if you kink it. I had to cut a couple feet of my tip hose already, but now I try to move the handle and not kink it. One thing though I use my trailer pump mostly for line jobs 305 Schwing because it has less pressure. Boom pumps push around 210 bar My line pump only pushes around 110. It's a lot safer 210 is too much with a plug it is dangerous.

Rookie 11-16-2009
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b-alto, are you saying,boom pumps pump at 210 bar, or they by-pass to tank at 210bar?

Tank 11-17-2009
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My Method of choice would be the Line Dragons

Tank 11-17-2009
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finisher4700 11-17-2009
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hose hooks the only way to go if you know how to use them

b-alto 11-17-2009
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Most boom pumps pressure out at about 270 bar. Thats a whole lot of pressure. You should be able to line pump under 120 or even better at around 80. If you get a plug at 270 and it let's loose.. Watch out... The shits going to hit the fan. My little pump is safer is all I'm saying. If it doesn't pump something is wrong extra pressure usually won't help.

naptowndaddy 11-17-2009
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i agree, hooks are the way to go. hose men are more mobile with hooks.  i prefer using hook on end as well.