I thought everyone had one of these in the collection"
http://www.concretesupplyhouse.com/page/CSHL/PROD/CF113 I sure
don't use it often, but when needed . . . . ..


Never throw out old edgers, cut some real narrow to get past
anchor bolts, etc. cut some short.

--
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)




" Frank" wrote in message
. ..

"Robert Allison" wrote in message
news:ZS4xj.6149$xg6.2625@trnddc07...
Frank wrote:

I've used the ready mixed in a bag and mix my own by adding
cement to the con mix. I usually get a better finish with the
ready mix - smoother, more butter. The con mix consists of
sand and 3/4" or smaller rocks. I'm using 1 part cement to 5
part con mix ratio. The problem is most of the rocks are large
with very few aggregates smaller than 1/2" so the results are
lumpy after bull floating. I needed to use the tamper to drive
the rocks down before bullfloating. Both supplier in my are
has this problem regarding the lumpiness.

Am I doing something wrong or should I add smaller rocks to
the mix (eliminate the temping process) to get a smooth finish
like the ready mix bags?

Are you using 1 part cement, 2 parts sand, and 3 parts
aggregate? That should do it. What kind of aggregate are you
using? Larger aggregate will contribute to higher PSI, so I
wouldn't put in smaller unless you don't care about strength.
I haven't had lumpiness problems, so I can't help much.


Don't know what the ratio is as its pre mixed sand and 3/4"
aggregate. I get 15 yards and they dump it on my driveway. All
its needed is water and cement. Vibrating the concrete helps and
the walk behind tamper is great pushing the 3/4" lumps down,
leaving more butter on the surface. Still not as good as the pre
mixed bags where you just add water.


Also for straight lines, an edger is great but on radius bends
where the edger doesn't conform to the curves, what tools
should I use?

We have always used standard radius edgers. When the radius
wall gets short, you sometimes have to lift up the front of the
edger and just use about half of it to make the radius. When
doing this, it is important to have the curved edge radius
edger. Here is an example:

http://www.marshalltown.com/catalog/...sp?edino=14190



This is the tool I use and having problems with small radius
curves even after lifting the edger up. The problem is its too
long but I have an extra one and will saw it off and play around
with it.

--
Robert Allison
Rimshot, Inc.
Georgetown, TX