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Posted by SteveF on July 3, 2006, 8:02 am
>
>> Dilute the HCL with water about 40% water will still be okay and use a
>> stiff brush (not wire in this case) to brush the concrete stains away.
>> Rinse well with clear water after brushing.
>>
> And put down polythene sheeting to keep the splashes off the condrete
> driveway, or you'll be calling the contractors back to lay another, when
> they'll undoubtedly splash the garage door with concrete (repeat ad
> nauseum...) Once you're finished, a rinse with washing soda will
> neutralise the acid, sprinkle more on the plastic to neutralise the
> splashes before disposal.
>
> Dave H.
> (The engineer formerly known as Homeless)
>
It wouldn't be a repeat because this time he would learn that if you clean
off the concrete within a couple of hours it comes off easily with water.
And the longer you wait to clean it, the harder it gets.
Steve.
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