The Brew Cabin

Posted: **Thu Jul 27, 2017 6:47 pm**

Hello folks,

First I'm sorry to annoy you pro guys with my novice mistakes

Got just a bit a head of my self the past couple of weeks and maybe a but too confident.

Cut a long story short, I have been pressure washing and re sanding driveways and it has been going brilliant. Plenty of work and I enjoy it.

My mother in law has a lovely red coloured patio which she let me "practice" on in return for all the meals she takes me out for. Some up really nice after the jet wash, but it still looked rubbish due to over 70% of the grouting or mortar between the flags being none excistant or crumbly.

So a couple of days after cleaning she said I can remove the grout and replace it with geofix or something similar. So today I was tapping away at the grout with hammer and chisel. Had a bit of rain. Things got abit sloppy but I carried on. Later to realise when I brushed up and hosed down, when it dried there is white patching and brush strokes on top of the paving and it looks awful. So obviously something to do with the old stuff I have left onto and let get wet. Even the stuff that didn't get wet and stayed like a powder has left white marks behind. What is this and how can I get rid gutted.

Also just a quick one about the re grouting. Are the joints ok to still have sand inside them when I brush in geo fix? Or should I be taking all the sand out?

Thank you
Matt

Posted: **Fri Jul 28, 2017 12:39 am**

photos are a bit big
for that i wouldnt use any kind of polymeric let alone Geo%&^*
grind out all the joints to 20mm deep with a raking blade
then repoint with sand and cement 4:1
LLL

Posted: **Fri Jul 28, 2017 9:34 am**

Ok does any water get added to the mixture?
What's your advice about the white patches?
Will kiln dried sand be ok for the mix?

Thanks
Matt

Posted: **Fri Jul 28, 2017 11:42 am**

You have so much to learn! Please think very, very carefully before taking on work on anyone else's property - you could get yourself into so much trouble if/when it goes wrong and their paving fall apart, literally.

You need to understand the various types of jointing and, most importantly, the role that jointing performs with various types of paving. Then, if jointing does get damaged during a cleaning operation, you know hoe to est remedy the situation without compromising the pavement structure.

When you don't even know how mortar is mixed, when you wonder whether KDS is suitable as a base for cement mortar, and when you think GeoFux is a an acceptable fix, it genuinely worries me. Read the jointing section of the main website: educate yourself; learn what will and won't work, and that way there's a chance you'll avoid the next disaster.

Sorry to be harsh, but if you carry on like this, you *will* end up getting sued by somebody.

Posted: **Fri Jul 28, 2017 4:15 pm**

Ok so I'm going to sand cement the jointing in between no problem. Can you advise on the white on the flags please? Lucky it's my mother in law she isn't bothered about it

Posted: **Tue Aug 01, 2017 10:36 am**

It's cement staining

The Brew Cabin

Uh oh, white patches