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Posted by Walter R. on March 6, 2008, 11:42 am
Will commercial sandblasting work?
--
Walter
www.rationality.net
-
> Since most posters suggest pressure washing, would my 1800 psi 1.7 Gal/m
> washer hack it? Might be worth a try.
>
> Otherwise, I guess I could stain or paint the concrete to make the
> blotches look more uniform.
>
> --
> Walter
> www.rationality.net
> -
>> The 4' wide concrete walkway to my front door has become stained and
>> unsightly. Part algae, part burn marks from burning palm seeds dropping
>> on it, part just a discoloration of unknown origin.
>>
>> If I use Clorox bleach on the concrete, that would be as starting point
>> to clean it up. My question is, will chlorine harm the concrete?
>>
>> --
>> Walter
>> www.rationality.net
>> -
>>
>
>
>
> --
> Posted via a free Usenet account from http://www.teranews.com
>
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Posted by Joseph Meehan on March 6, 2008, 3:25 pm
Sandblasting certainly will get it clean. However even home
sandblasting can damage the concrete. They typical sidewalk will have been
finished to bring some "cream" to the surface of the walk to provide a
strong smooth surface. The sand blaster can eat through that.
I would reserve it for the final try. I have some curbing that has been
very difficult to clean. I have been holding off getting the sand blasting
outfit out, but I may do it this summer. I will cut back on the power
however.
--
Joseph Meehan
Dia 's Muire duit
> Will commercial sandblasting work?
>
> --
> Walter
> www.rationality.net
> -
>> Since most posters suggest pressure washing, would my 1800 psi 1.7 Gal/m
>> washer hack it? Might be worth a try.
>>
>> Otherwise, I guess I could stain or paint the concrete to make the
>> blotches look more uniform.
>>
>> --
>> Walter
>> www.rationality.net
>> -
>>> The 4' wide concrete walkway to my front door has become stained and
>>> unsightly. Part algae, part burn marks from burning palm seeds dropping
>>> on it, part just a discoloration of unknown origin.
>>>
>>> If I use Clorox bleach on the concrete, that would be as starting point
>>> to clean it up. My question is, will chlorine harm the concrete?
>>>
>>> --
>>> Walter
>>> www.rationality.net
>>> -
>>>
>>
>>
>>
>> --
>> Posted via a free Usenet account from http://www.teranews.com
>>
>
>
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Posted by Phisherman on March 6, 2008, 9:28 am
wrote:
>The 4' wide concrete walkway to my front door has become stained and
>unsightly. Part algae, part burn marks from burning palm seeds dropping on
>it, part just a discoloration of unknown origin.
>
>If I use Clorox bleach on the concrete, that would be as starting point to
>clean it up. My question is, will chlorine harm the concrete?
Probably not, but the chlorine may harm other things in the runoff
(trees, shrubs, grass, metal, etc). I wouldn't go any higher than 1
cup Clorox per gallon of water. A pressure washer with plain water is
the tool to clean concrete.
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Posted by Joe on March 6, 2008, 3:19 pm
> The 4' wide concrete walkway to my front door has become stained and
> unsightly. Part algae, part burn marks from burning palm seeds dropping on=
> it, part just a discoloration of unknown origin.
>
> If I use Clorox bleach on the concrete, that would be as starting point to=
> clean it up. My question is, will chlorine harm the concrete?
>
> --
> Walterwww.rationality.net
> -
Don't waste your time. Go to a janitorial supply store, rent one their
hairiest power scrubbers and buy the compound they recommend for
cleaning concrete. Take it home and work your butt off (been there,
done that). Rinse it off and let it dry, then if it looks decent,
apply a sealer from the J. S. store. If successful, take better care
of the walk. If not, tear up the walk and replace with something more
compatible with your eco system, like pavers or some such. HTH
Joe
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Posted by Norminn on March 6, 2008, 3:59 pm
Walter R. wrote:
>The 4' wide concrete walkway to my front door has become stained and
>unsightly. Part algae, part burn marks from burning palm seeds dropping on
>it, part just a discoloration of unknown origin.
>
>If I use Clorox bleach on the concrete, that would be as starting point to
>clean it up. My question is, will chlorine harm the concrete?
>
>
>
Burning palm seeds?
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