Grin. Mine still hurt!
Though building the danged addition has been at least as hard. I'm 40 now.
I'm too old to be pounding nails! The fact that I'm a computer geek doesn't
help much either. grin
Thanks for the advice. I'm gonna pass it along to some other wisps.
laters,
Marlon
(509) 982-2181 Equipment sales
(408) 907-6910 (Vonage) Consulting services
42846865 (icq) And I run my own wisp!
64.146.146.12 (net meeting)
www.odessaoffice.com/wireless
www.odessaoffice.com/marlon/cam
----- Original Message -----
From: "Pat Thurman" <[EMAIL PROTECTED]>
To: "Marlon K. Schafer (509) 982-2181" <[EMAIL PROTECTED]>
Sent: Monday, June 19, 2006 8:57 AM
Subject: Re: [TowerTalk] Vibrating Concrete...
Hi Marlon,
Good deal!! I was just curious. I'm retired now, but was involved with
design and construction for quite a while, and it seems that one of the
most common misconceptions is that Fibermesh will 'replace' ordinary steel
reinforcement. Not really true, although if you just relied on the
manufacturers advertisements, you probably wouldn't get that impression...
They seem to push the idea that the poly fibers are the be all and end all
of concrete flat work...
In reality, the fibers do a magnificent job of controlling plastic
shrinkage and such if the mix is properly designed and is properly placed
and cured. That's quite a mouthful to say, and even harder to achieve in
practice... Fibermesh or Novomesh are not really good enough to actually
replace rebar needed for structural reinforcement. You can find this
info, but it's buried DEEP in the product data sheet... (small print of
course) And YES, they can make your slab kind of 'hairy', although there
are ways of dealing with that too...
Anyway, congrats on completing a big job! My muscles ache just to think
of it!! heh heh... G
Good job!!
73, Pat K7KR
Marlon K. Schafer (509) 982-2181 wrote:
Hiya Pat,
Nope. With a slab on grade we didn't need any rebar anywhere other than
the outside 1' of the foundation. Me being the ol' farm boy that I am
and doing the work myself put in rebar on 3' centers anyway.
I figured that with the rebar and the fiber (and I screwed up and ended
up with an average of 5 1/2 to 6 1/2 inches thick) I'd never have to
worry about the base of the house moving!
Marlon
(509) 982-2181 Equipment sales
(408) 907-6910 (Vonage) Consulting services
42846865 (icq) And I run my own wisp!
64.146.146.12 (net meeting)
www.odessaoffice.com/wireless
www.odessaoffice.com/marlon/cam
----- Original Message -----
From: Pat Thurman To: Marlon K. Schafer (509) 982-2181 Sent: Monday,
June 19, 2006 8:03 AM
Subject: Re: [TowerTalk] Vibrating Concrete...
Hi Marlon,
Just curious, but were you told that microfiber would replace
conventional reinforcement? By that I mean, were you told that if you
used microfiber that you wouldn't need to use any standard reinforcing
bars/mesh for your home addition slab?
73, Pat K7KR
Marlon K. Schafer (509) 982-2181 wrote: Grin,
Too true Dino!
I did manage to pour 4 trucks full of concrete last year. All with
microfiber in it.
What I was told was that it would do nothing to stop the cracking. This
has proven to be quite true. My 25x35 slab for a house addition is
cracked all over. Pouring in 100* weather is bad. Not leaving a
sprinkler on it for a week is worse!
Next time I'll try the "more concrete" idea.
What the fiber did do (and was claimed by the concrete guys) was to hold
the concrete together. This tendency was quite clear with little chunks
that were left on tools or forms. Hunks would come off but still be
stuck together nicely. It was actually quite impressive.
We did have a bit more trouble getting the finishing done as the fiber
would stick to the tools. Once the concrete set up a bit though, that
problem mostly went away and we were able to finish it just fine. And
power troweling worked just like normal. One note I'd make though, when
you want a nice smooth floor (like in a house) don't be afraid to run
that power trowel about twice as long as you'd think you'd have to. We
should have hit the floor 2 or 3 more times. I guess I'll have a nice
surface for flooring to stick to though :-).
laters,
Marlon
(509) 982-2181 Equipment sales
(408) 907-6910 (Vonage) Consulting services
42846865 (icq) And I run my own wisp!
64.146.146.12 (net meeting)
www.odessaoffice.com/wireless
www.odessaoffice.com/marlon/cam
----- Original Message -----
From: "Dino Darling" <[EMAIL PROTECTED]>
To: "K8RI on Tower talk" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Sunday, June 18, 2006 10:07 PM
Subject: Re: [TowerTalk] Vibrating Concrete...
Roger asked;
What are your recomendations for vibrating "high fiber" concrete.
Hey Roger, I'm not a professional concrete guy, but I play one on
TV,
AND slept at a Holiday Inn Express last night! :-) To answer you
question, "Add more water!"
I sold concrete tools for a few years and did all the demos. According
to the concrete guys, they saw no advantage to the fiber and it made
everything "furry". They still got cracks, etc. The old timers would
say, "Use more concrete if you want more strength."...or something to
that affect.
To be fair, the "engineers" state that FIBER is the best thing for
concrete and makes a world of difference! I have yet to be on a pour
where an engineer was ankle high in the mud or riding on the concrete
trowel machines with me. YMMV!
Dino - K6RIX
[EMAIL PROTECTED]
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