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a mixer full of mud

JDOFMEMI

Senior Member
Joined
Jan 3, 2007
Messages
3,074
Location
SoCal
Glad to help.

Your question made me research it since I had seen some of the funny looking drums, but did not really know what they were.
It was educational for both of us it seems.
 

OCR

Senior Member
Joined
Feb 21, 2008
Messages
1,195
Location
Montana
Occupation
Rancher/Farmer, Wildland Fire Fighter, State snowp
a mixer full of mud:

Here's a couple links I scrounged up... :)

Of course, from the old standby, Wikipedia...

This one is rather lengthy, so I scrolled through rather fast, and didn't take much time reading...
http://en.wikipedia.org/wiki/Concrete

This one's not too bad...
http://en.wikipedia.org/wiki/Concrete_curing

This one has some good pictures of mixer trucks...
http://en.wikipedia.org/wiki/Concrete_mixer

And this one is a Wiki link, to an off site source... looks fairly interesting... click the home page if you'd like to view the whole site...
http://www.understanding-cement.com/hydration.html


OCR
 

Muffler Bearing

Senior Member
Joined
Mar 26, 2009
Messages
512
Location
Colorful Colorado
Occupation
Truck Mechanic
Wow! Good Stuff! You guys seem to have handled every question that came up. Mud Maker, thanks for the link to the jumper, They are actually considering having me build one! My company tried some of the composite drums once. For a few months they were awesome, then one day a Fin Fish ( an oddly fish shaped chunk of concrete) broke free and punched several holes through the side of the drum! So they may be stronger now, or maybe you just have to be real clean with them.

As you guys have explained you have some time to get a drum turning and kill a load, but pretty much everything went wrong here. For perspective this is the only one in 11 years....and as a mechanic I must place the blame firmly on the driver of course
 

Dualie

Senior Member
Joined
Feb 23, 2007
Messages
1,371
Location
Nor Cal
I do know if your planning on driving a transit mixer any great distance with the drum not turning the factory installs little wear pads between the drum and the rollers. The motion from driving down the highway with stationary drum will actually rock the tower back and forth enough to wear flat spots in the ring the drum rotates on.
 

mudmaker

Well-Known Member
Joined
Feb 10, 2009
Messages
136
Location
Colorado
That is why you always see the drum turning even if the truck is empty. Those flat spots are a PITA, especially on a front discharge. We never had one flat spot the ring. Just the rollers, and when the rollers are right behind your head they make a racket if there is a flat spot on them. At least they are easy to change out, just heavy!
 

Muffler Bearing

Senior Member
Joined
Mar 26, 2009
Messages
512
Location
Colorful Colorado
Occupation
Truck Mechanic
Another great way to get flat spots is to fire it up on a cold morning and your rollers are frozen but you just let the drum keep turnin'. Easy to change?! I guess once you chip all the hard concrete off of them, chain the drum up and raise it with a loader it is only four bolts. Still a job I try to delegate.;)
 
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