just put a patterned concrete drive in house but i have concrete on some of the brick work which doesnt want to come of, any ideas whats the best stuff to use to remove this?
2007-03-25 22:54:11 · 11 answers · asked by graham h 1 in Home & Garden ➔ Do It Yourself (DIY)
Normally you would go over it with a stiff broom while it was still wet. This leaves it in the gaps, but takes it off the surface. If it has already set, then you have a problem. Short of sand-blasting it, there's not much you can do. A pressure hose may be effective, if it hasn't been there too long.
2007-03-25 23:09:07 · answer #1 · answered by Ian I 4 · 0⤊ 0⤋
if it is just splashed on you can use a diluted mixture of muratic acid...carefully to strong will change the color of the brick surface slightly and in some cases drastically. If it is a thick coating more than 1/16" you will need to so this in several applications. Heaver than that chisel it off first and then use the acid. Don't go buy a expensive "cement remover" product we have been in the masonry business for over 50 years and we always have used just muratic acid its the same stuff you use for your pool. Wal-mart or Home depot at about 3.00 for a gallon..don't forget to neutralize it with either lots of water or a water vinegar solution as it will burn plants and pets.
2007-03-28 05:15:13 · answer #2 · answered by unofornaio 3 · 0⤊ 0⤋
brick acid. apply on soiled area with a 2 inch brush. and it will fissle off instanly, maybe on thicker areas it will take 2 coats or more. wear goggles and gloves. also cover your new drive with plastic below where you apply the acid or it to will dissolove into holes where splashed. wash it down with clean water after an hour of cleaning. you get it in most building suppliers for under 7-10 pounds. but it would have been a good working practice to wash the walls when concrete was green
2007-03-26 09:18:12 · answer #3 · answered by John J 3 · 0⤊ 0⤋
Muratic Acid is made for removing excess mortar from any masonry and it does a good job. You can purchase at most lumber or masonry suppliers. Be sure to use protective clothing too...... it will burn the skin if you get any on ya. You can use full strength if needed and just allow more time for stubborn areas then hose down with water (sometimes you may need to use a scrub brush in some areas)
2007-03-25 23:54:34 · answer #4 · answered by fred b 2 · 2⤊ 0⤋
Use muratic acid, a diluted Hydrochloric acid that you can buy at any home store. pour some in a plastic paint bucket, five gallon size, and brush it on with a long handled stiff brush. You will see foam, that is the action of the acid on the cement, and once it has quit foaming, spray it off with a hose. Job done.
Even diluted, that stuff is dangerous. Don't stick your hands into it
2007-03-29 10:27:37 · answer #5 · answered by Polyhistor 7 · 0⤊ 0⤋
Fantastic product you will get from any builders merchant called Sealoclean from Sealocrete. It's like an acid you spray on, leave for 20 minutes, agitate and then hose down. We had natural stone put in our garden and it was covered in concrete, it's now back to normal.. hope this helps.
2007-03-26 04:56:10 · answer #6 · answered by Kaz 2 · 0⤊ 0⤋
I use a pressure washer for any stubborn bits what ever they are and on almost any surface. You need one that has a lance with a rotating water jet as this is the most effective.
Have a happy Easter.
2007-03-25 23:21:41 · answer #7 · answered by ANF 7 · 0⤊ 0⤋
Brick acid will do the trick as suggested above.
2007-03-28 10:10:24 · answer #8 · answered by Anonymous · 1⤊ 0⤋
You need "Sure Kleen" made by Prosoco, Be careful, its strong stuff.
2007-03-26 01:33:21 · answer #9 · answered by Anonymous · 0⤊ 0⤋
go to your local builders merchants..or if you know one ..a bricklayer ..and ask to buy ..or borrow ..a scutch hammer ..this has a comb fitted ..an d gently chip it away
2007-03-29 06:39:00 · answer #10 · answered by boy boy 7 · 0⤊ 1⤋