Browse Forums Paving & Concreting 1 Oct 06, 2009 3:43 pm 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: White patches on concrete 2Oct 06, 2009 6:08 pm Da Vinci Outdoor Living Architectural landscaping http://www.davincioutdoor.com Re: White patches on concrete 3Oct 06, 2009 9:47 pm 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: White patches on concrete 4Oct 08, 2009 8:28 pm 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: White patches on concrete 5Oct 09, 2009 6:27 pm 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: White patches on concrete 7Oct 18, 2009 11:31 am 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: White patches on concrete 9Oct 20, 2009 11:58 am Lisanne, It sounds like efflorescence, and is a natural process of salts depositing on the surface. The salts can be brushed away with a stiff brush/broom or hosed, but will reocurr as the moisture then draws more salts up. There are a number of products on the market for removal of efflorescence, BUT they are almost all acids (phosphoric or other acids) which disolve the salts, but are usually not very successful as the efflorescence reoccurs. This product is expensive, but is a far more effective at effectively removing the efflorescence and inhibiting its return. http://www.aquamix.com.au/products/eff-ex.php If you get it, be sure to follow the instructions very carefully. Ash. Re: White patches on concrete 10Oct 20, 2009 1:40 pm Thanks guys. I've noticed that the bit I did sweep hasn't got it anymore so I'm thinking I may need to sweep it. I hosed the driveway down the other night with just a normal hose and I have seen a slight improvement, so will give the sweeping a go.... this warmer weather today should tell me how it's going. 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: White patches on concrete 11Oct 20, 2009 1:56 pm Hi ya lisanne, The water will dissolve it, drying is what makes the crystals form. Where you are coming from is where you are going to... Re: White patches on concrete 12Oct 20, 2009 5:00 pm onc_artisan Hi ya lisanne, The water will dissolve it, drying is what makes the crystals form. So the water will disolve it and wash it away wont it? 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: White patches on concrete 14Oct 30, 2009 7:54 pm brittany Hi Lisanne - hows the concrete looking now? What did you end up doing? I was hoping that the recent rains would help and it has but its still happening in some area's so when I get a chance I am going to try sweeping it. I also need to hose it down again as there is a lot of dirt from the recent dust and winds 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: White patches on concrete 15Oct 31, 2009 12:03 am If you want to high pressure wash it, go for it! After a week you would be doing well to remove any concrete Mind you if you can I have a job for you Where you are coming from is where you are going to... Re: White patches on concrete 16Nov 05, 2009 6:14 pm It seems to have magically stopped now! I'm going to hose it down (awful I know!) and clean the dirt/dust/mud off it so that they can come and seal it! 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: White patches on concrete 17Nov 12, 2009 7:59 pm It's being sealed tomorrow! They told me to hose it down tonight to try to get it clean - it got a LOT of dirt off but it still looks dirty There's also a giant crack in the driveway And the colour is REALLY patchy Oh and some of my neighbours saw me hosing down my driveway and just glared at me Poo! 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Re: White patches on concrete 18Nov 13, 2009 5:00 pm How long after it's sealed can I drive on it? I think I remember them saying 4hrs, but the thing is I don't know when they came to do it - it's dry to touch at the edges at least 'A bottle of wine contains more philosophy than all the books in the world.' Louis Pasteur Vegie garden: viewtopic.php?f=19&t=27637&start=0 My Backyard Adventure Looking for advice on whether this variation in tile colour is acceptable. The large tile on the left was used in my main bathroom renovation 1 year ago. My ensuite… 0 9142 Dover white or surfmist garage door. I am having trouble choosing a garage door. The outside of house will be tranquel retreat. I want it to all blend nicely however I… 0 7593 |