Cleaning Concrete Driveway

 
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Old 06-07-2007, 07:15 PM   #1
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Cleaning Concrete Driveway


What kind of solution are you using to clean concrete driveways?

Thanks, Pat
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Old 06-07-2007, 07:22 PM   #2
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Re: Cleaning Concrete Driveway


Muriatic acid, rubber gloves and a good stiff brush.

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Old 06-07-2007, 07:41 PM   #3
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Re: Cleaning Concrete Driveway


muriatic acid to clean concrete bob???





it'll clean it alright ....
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Old 06-07-2007, 07:48 PM   #4
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Re: Cleaning Concrete Driveway


Who needs 4 inches anyway.

It's a good thing neither of my ex-wives could use that line.
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Old 06-07-2007, 10:01 PM   #5
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Re: Cleaning Concrete Driveway


General dirt,grease,oil,rust?

Muratic is bad,bad,bad without just cause.
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Old 06-20-2007, 12:54 AM   #6
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Re: Cleaning Concrete Driveway


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Originally Posted by pitterpat View Post
What kind of solution are you using to clean concrete driveways?

Thanks, Pat
It would depends what needs to be cleaned off the driveway.
If nothing really serious the stuff at HD for your pressure washer will do just fine. Wet it down first, then apply detergent, then spray off.

Acid IS dangerous! Not unless you must etch the surface as prep.
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Old 06-22-2007, 10:01 PM   #7
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Re: Cleaning Concrete Driveway


Here are a couple of jobs I did where I just used direct pressure from my machine to clean the concrete.


http://www.geocities.com/allenh1970_4/felder

http://www.geocities.com/allenh1970_3/LaCour


That Felder job wore me out!!!
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Old 06-23-2007, 01:07 AM   #8
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Re: Cleaning Concrete Driveway


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Here are a couple of jobs I did where I just used direct pressure from my machine to clean the concrete.


http://www.geocities.com/allenh1970_4/felder

http://www.geocities.com/allenh1970_3/LaCour


That Felder job wore me out!!!
I agree if you have a power washer over 2600psi you should be good to go. You can actually lightly score the concrete.
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Old 01-17-2008, 05:02 PM   #9
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Re: Cleaning Concrete Driveway


i would stay away from the muriatic acid. most of your driveways you can get by using an industrial grade degreaser with some industrial grade bleach. If acids are required i would suggest britenol HD or GSR from eaco chem it also kills the mildew and algae for longer lasting results. Prosoco also makes some pretty good basic cleaners. but i prefer eaco chem. we also have several different flat surface cleaners, which if you do enough flat work will definately pay for themselves.

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Last edited by tom connelly; 07-31-2008 at 01:48 PM.
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Old 01-17-2008, 05:03 PM   #10
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Re: Cleaning Concrete Driveway


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Muriatic acid, rubber gloves and a good stiff brush.

That would be extremely time consuming, and labor intensive.

Last edited by tom connelly; 08-05-2008 at 11:03 AM.
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Old 01-22-2008, 06:13 PM   #11
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Re: Cleaning Concrete Driveway


It really depends on what you are removing. If its just dirt, mildew and some tannin stains you can use a bleach and soap mix. Hot water will help too.
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Old 01-22-2008, 07:37 PM   #12
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Re: Cleaning Concrete Driveway


tear it out and re pour
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Old 01-27-2008, 04:17 PM   #13
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Re: Cleaning Concrete Driveway


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tear it out and re pour
thats a great idea...if your in the pouring business.

Last edited by tom connelly; 08-05-2008 at 11:05 AM.
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Old 01-27-2008, 04:26 PM   #14
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Re: Cleaning Concrete Driveway


muriatic acid will etch your surface. If its not properly applied, you can also have other problems such as rust stains from the rebar, heavy acid burns, and so on. I've seen some really nasty sites. Some of the problems may not all be immediate either, and they may be near impossible to fix. Play it safe, not just for the concrete and the environment, as well as surrounding surfaces; but also for yourself and your customers, stay away from raw muriatic. You can achieve not just great, but better results without it.
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Old 03-16-2008, 06:24 PM   #15
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Re: Cleaning Concrete Driveway


Not to mention all that acid in your face. Plain old pressure does a nice job, if you dont have a surface cleaner, double back both directions to avoid zebra stripes.
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Old 03-02-2011, 07:32 PM   #16
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Re: Cleaning Concrete Driveway


Quote:
Originally Posted by pitterpat View Post
What kind of solution are you using to clean concrete driveways?

Thanks, Pat
Hi pat it really depends on wht you are trying to remove from the concrete, any more info?
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Old 03-03-2011, 03:19 AM   #17
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Re: Cleaning Concrete Driveway


Quote:
Originally Posted by pitterpat View Post
What kind of solution are you using to clean concrete driveways?
Quote:
Originally Posted by pitterpat View Post

Thanks, Pat
The correct balance of heat, pressure and chemicals are required for the most effective cleaning of concrete. If there is a deficiency of any one of these i.e not enough heat, then you will have to increase one of the other factors i.e more pressure or stronger chemicals. The correct balance depends on what has to be removed from the concrete. For example, grease such as oil stains will require heat and chemicals, but dirt just needs pressure of 2000 to 3500 psi with no heat or chemicals, However if you can add heat, you can reduce pressure.


many thanks

Last edited by williammwill; 05-30-2011 at 03:26 AM.
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Old 03-04-2011, 04:46 PM   #18
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Re: Cleaning Concrete Driveway


Hot pressure washing is best and will usually do the trick. Detergents and chemicals can also be used for particulary stubborn oil, stains and grime on the concrete surface. As mentioned above, the rotating surface cleaners are your best bet to avoid zebra striping.
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Old 05-15-2011, 11:01 PM   #19
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Re: Cleaning Concrete Driveway


Quote:
If nothing really serious the stuff at HD for your pressure washer will do just fine.
I disagree. I've tried both the Zep product sold at my HD and the Krud Kutter product sold at my Lowes (your stores may sell different products). The MINIMUM solution that has worked somewhat well for me is the Simple Green Concrete cleaner. It got more mold/algea off than the other products and got the driveway a little cleaner but not rust or (likely) heavy oil. There are some concentrated products I want to try.
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Old 05-16-2011, 01:43 AM   #20
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Re: Cleaning Concrete Driveway


I can only assume, Pat, has finished the job by now.

But, to throw in my two cents, a good P.W. should take care of most of the general cleaning and since nobody mentioned it in the past 4 years, throw a can of coke on the oil stains and let it work while you use CLR on the rust stains. Then go back and hit the oil stain with the P.W.

Done deal. Clean up. Get paid. Go home.

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