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anyone try a concrete 48" roller tamp

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bigbadjim

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Discussion starter · #1 ·
So I was in the concrete supply center today picking up a airplane groover. I come in the door and there's a big 48" Kraft dual roller tamp on display at the front door. I've never seen one in person only in a catalog. The tag on it says it pushs the aggregate down and pulls the fat to the surface.

Anyone use one of these before? I've never seen one being used. How quick can you go on with one of them? Can anyone explain how it is used and is it benificial?
 

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#2 ·
Been using one for twenty years or so. Works great.:thumbsup:

How fast you can get on depends on weather & how much water you add.

Doesn't take very long to be able to use it.

Like to have a dollar for every time I have leant it out.
 
Discussion starter · #3 ·
griz said:
Been using one for twenty years or so. Works great.:thumbsup:

How fast you can get on depends on weather & how much water you add.

Doesn't take very long to be able to use it.

Like to have a dollar for every time I have leant it out.
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20 years, wow!

Do you use it on almost every pour?
How about on a exposed aggregate driveway?
 
#6 ·
That is kinda the point of a tamp. To push the aggregate down so the top has more cream to make it smooth.

Roller tamps are awesome. You don't have to get out onto your work. You are not worn out after using it. And, you don't get splats of concrete all over yourself.

Just buy it!:thumbsup:
 
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#7 ·
So thats what its called. I call it a jitterbug. When working with large aggregate concrete it helps push the rock down into the slab. This is very beneficial with crushed quartzite type aggregate as it can really minimize spalling later on. More people should use them. Glad I know what to call it now.
 
#8 ·
PPRI said:
So thats what its called. I call it a jitterbug. When working with large aggregate concrete it helps push the rock down into the slab. This is very beneficial with crushed quartzite type aggregate as it can really minimize spalling later on. More people should use them. Glad I know what to call it now.
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AKA "rollerbug"
 
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#12 ·
Ninjaframer said:
Ya that don't make any sense? If you want exposed agg. why would you push all the rock down? It gets to cold here to use a gandy/ tamp. The top pops off.
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I poured a lot of exterior concrete in South Lake Tahoe, 6200', used the roller tamper & never had any problems with the top popping off.

Sounds like maybe your mix has too much water.
 
#17 ·
bigbadjim said:
So not a good tool to use in cold Canada then? Why would the top pop off?
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It was my understanding that without aggregate at the surface for the concrete to bond to the cold temps cause expansion/ contraction and surface popping is more likely.
 
#20 ·
Tahoe was consistently in the low teens & lots of snow.

If you are having problems with the tops of your flat work popping IMO consider these:

Too much water

Too much troweling

Unprotected work in cold weather

Poor/bad/improper mix design

IMO the roller tamper never caused popping.
Maybe if you ran it over the surface too many times.
 
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