Ask Experts Questions for FREE Help !
Ask
    elleluke's Avatar
    elleluke Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 20, 2008, 11:16 AM
    Cement Driveway Moldy?
    What can I use to clean my cement driveway that appears to have a dark mold on it?
    It even becomes a little slippery when it rains. There was a very large oak tree on the side of the driveway that I had removed close to a year ago. I thought that maybe shade from the tree may have helped in causing it. Would appreciate any help.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #2

    Apr 20, 2008, 01:10 PM
    Bleach will likely work.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #3

    Apr 22, 2008, 09:20 AM
    KISS is certainly correct about bleach killing mold. However, I suspect that the tree might have been dripping sap which makes things a bit stickier (couldn'tpass up the chance) Test a spot with bleach but also test a spot with TSP or other strong dtergent, wear gloves and googles with TSP. A pressure washer is also a good approach to use on concrete.
    amricca's Avatar
    amricca Posts: 851, Reputation: 92
    Senior Member
    		  
    #4

    Apr 22, 2008, 10:32 AM
    There is an insect called Aphids that suck the plant juices from the leaves of Oak trees and excrete a substance called honeydew. It might be this on your driveway. Mineral sprits will take it off if TSP, as Ballenger suggested, doesn't work.
    amricca's Avatar
    amricca Posts: 851, Reputation: 92
    Senior Member
    		  
    #5

    Apr 22, 2008, 10:49 AM
    I found something that says black sooty mold sometimes forms on honeydew. It says to remove it with a wax and grease-removing product or rubbing alcohol.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #6

    Apr 22, 2008, 11:04 AM
    I agree but since this is concrete we can get a little aggressive and the pressure washer with detergent should blast this junk away.
    amricca's Avatar
    amricca Posts: 851, Reputation: 92
    Senior Member
    		  
    #7

    Apr 22, 2008, 12:05 PM
    I agree, pressure washer is the way to go. Where's that person starting up a drive-way pressure washing business?
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #8

    Apr 22, 2008, 02:47 PM
    Good one amricca, I totally forgot about that guy. Bet I can dig him up.
    Thanks,Bob
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

GE dishwasher smells moldy [ 1 Answers ]

We vacation for long stretches of time. Last time, on our return, the dishwasher had an awful smill. It took 3 gallons of vinegar to grt rid of the smell. What can I do to prevnt this from happening next time.

Moldy Firewood [ 1 Answers ]

I have obtained several packaged bundles of Kiln-dried firewood. Several pieces of the split wood have mold growing on them, olive drab in color. Are these safe to use in my fireplace?

Air smells a bit moldy [ 1 Answers ]

I noticed that the air coming out of the vents smelled kind of moldy, like how an old car's air comes out. I can tell because the air in the house smells a bit moldy as well. I got 5 houseplants because I read that they improve air quality, and that have quite a bit. But the moldy air still...

I work in a Moldy building [ 11 Answers ]

My question is, If I report to my place of business, its an old religious facility, built during the civil war, that I have been getting severe symptoms from the mold, what are my options, can they fire me, for this, what type of lawyer, should I seek, what can I do, I only work there 1 day out...

Musty/moldy smell [ 1 Answers ]

We have noticed a strong musty/moldy smell coming from the bathroom vanity, inside of heating baseboard (there are holes where the pipes go into the wall), inside the electrical box panel and any small openings on the baseboard too. We own a slab ranch home (no basement). There are no visible...

View more questions Search