Removing White Powdery Substance From Cinder Block - Concrete, Stone & Masonry - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Concrete, Stone & Masonry

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 04-10-2012, 02:02 PM   #1
Newbie
 
Join Date: Mar 2009
Location: Kingsport, TN
Posts: 26
Rewards Points: 25
Default

Removing White Powdery Substance From Cinder Block


I had water seeping into a garage that has a cinder block wall. The leak was due to a clogged gutter drain that was allowing rainwater to flow at the block wall on the outside. Over time the water seeped through.

The seepage left a powdery white residue on the cinder block. How can I best remove the residue? Thanks.

Advertisement

Lawrence Coppar is offline   Reply With Quote
Old 04-10-2012, 07:38 PM   #2
Member
 
Join Date: Apr 2012
Location: Va Beach, VA
Posts: 238
Rewards Points: 152
Default

Removing White Powdery Substance From Cinder Block


This residue is from a build up of a particular element (cant recall at the time). This substance was absorbed from minerals in the water and is entirely consumed the pores of the block. You could possibly try CLR cleaner (As seen on TV) This might work. Havnt tried it before but i have tried everything else to remove the white substance from brick and block with no luck. Second option... Paint. Good luck

Advertisement


Last edited by beenthere; 04-12-2012 at 07:37 PM. Reason: Removed link
TRUEPRO is offline   Reply With Quote
Old 04-10-2012, 08:10 PM   #3
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,743
Rewards Points: 602
Default

Removing White Powdery Substance From Cinder Block


http://www.masonryworktools.com/brickefflorescence.html
joecaption is offline   Reply With Quote
Old 04-12-2012, 03:02 PM   #4
Newbie
 
Join Date: Mar 2009
Location: Kingsport, TN
Posts: 26
Rewards Points: 25
Default

Removing White Powdery Substance From Cinder Block


Thanks for the ideas. I'll be trying them.
Lawrence Coppar is offline   Reply With Quote
Old 04-12-2012, 03:12 PM   #5
Member
 
Join Date: Mar 2011
Location: As always..beside myself.
Posts: 4,226
Rewards Points: 2,000
Default

Removing White Powdery Substance From Cinder Block


efflorescence can be scraped off with a wire brush. Then wash the area with white vinegar
creeper is offline   Reply With Quote
Old 04-12-2012, 03:28 PM   #6
Member
 
concretemasonry's Avatar
 
Join Date: Oct 2006
Location: Minneapolis/St. Paul, Minnesota - Latitude 45.057 Longitude -93.074
Posts: 3,824
Rewards Points: 2,136
Default

Removing White Powdery Substance From Cinder Block


Trupro -

The element you cannot remember is basically is calcium salt calcium that is in all concrete. If there is excess moisture, it can be carried to the surface and deposited when the moisture evaporates. Since the block are probably not "cinder block" (very rare for the last 40 years) real cinder block could also contain many different salts since they were made from waste materials that are not economical now due to the availability of higher quality aggregates.

It is an alkali and can be neutralized by an acidic product (like vinegar) after the excess is brushed off. The good thing is that it lets you know where the excess moisture is coming out.

Dick

Advertisement


Last edited by concretemasonry; 04-12-2012 at 03:34 PM.
concretemasonry is offline   Reply With Quote
The Following User Says Thank You to concretemasonry For This Useful Post:
jomama45 (04-12-2012)
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Concrete (Cinder) Block Barebones Home : Seeking Advice granadaCoder Building & Construction 11 08-11-2012 08:03 AM
How to Repair Cinder Block Foundation Cracks Germwise Building & Construction 4 07-01-2010 12:14 PM
building concrete steps cinder block frame? drewhart Building & Construction 2 06-10-2010 02:48 PM
Tying in a 2"x4" walled-booth with a cinder block wall johnofthemount Building & Construction 3 12-19-2009 03:51 PM
hooking up dryer....bronx ny code SURFBUG Appliances 6 10-14-2008 10:41 PM




Top of Page | View New Posts