Removing cement from a block paved drive

[heatserve]

Not really a plumbing problem, but whilst fitting a boiler I spilled some cement onto a block paved drive.

I've tried hosing it down and brushing it off, but not much luck.

Any advice chaps?

TIA

 

[greemyamochop]

brick acid???

 

[heatserve]

brick acid???

Thanks, not sure where to get it from or how aggressive it might be. What do you think about a pressure washer?

About 10-12 bricks affected, customer upset and I don't want to make it any worse!

 

[Anwah]

Try the pressure washer with the jet set on pin point it should lift it.

 

[muggles]

Floor scraper? One of those handheld jobbies they use to clean floors after plastering etc

 

[looneyfitter]

Problem with the pin point on the Pressure washer is it will cause a change in brick color, may end up doing entire drive.

Id go for brick acid and a wire brush. I take it you didnt notice until it had dried?

Travis, build center sell it

 

[heatserve]

Floor scraper? One of those handheld jobbies they use to clean floors after plastering etc

Too tough for that I think. One of my mates has suggested coke and another one has offered his high pressure washer. The brick acid is my last resort I think. If the worst comes to the worst I can replace the bricks, I just don't want to exacerbate the situation - I'm hoping to get paid on this!! - the job is actually finished, just this SNAFU to fix.

 

[greemyamochop]

brick acids not that corrosive i find, just a scary name!!!!

 

[heatserve]

Thanks for all the advice, dunno what I'm gonna do - probably start with the coke - ballcocks!

 

[looneyfitter]

GOOGLE IS YOUR FRIEND MATE,

http://cgi.ebay.co.uk/HG-HAGESAN-CE...254021&cguid=1c8dde8f12b0a0e201c2cb92ffee81e1

 

[looneyfitter]

even better

http://www.diy.com/diy/jsp/bq/nav.jsp?isSearch=true&fh_search=MORTAR+REMOVER&x=16&y=14

 

[studips]

an alternative to cleaning them (which is not that easy) are there any spare blocks laying around?

pop out the spoilt ones and replace with weathered ones from a less obvious area of paving and replace those in turn with new if there are no old ones kicking around.

blocks are easy to get out once you have an idea what you're doing.

either hire an extractor tool or u can drill a block, insert a rawlbolt and use that to haul the block out. it's dead easy to do.

 

[ChrisR]

The brick cleaner will change their colour. It's Hydrochloric acid. I'd go for the pressure washer. At least it'll only be lack of dirt they're looking at.

 

[heatserve]

Thanks for everyone's suggestions & advice. Got the block-work cleaned using B&Q brick cleaner and a jet washer.

Cheers

 

[looneyfitter]

Happy Days