Browse Forums Paving & Concreting Re: Silicon in our new exposed aggregate 2Apr 18, 2020 1:19 pm I do a lot of work with an exposed agg specialist and I have never seen silicon used to repair a job. It sounds like an attempt to fix a poorly finished job. Can you post some pictures? Exposed agg is very unforgiving to poor processes and once the concrete is placed and finished the repair options are very limited. I'll be interested to see the pictures. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Silicon in our new exposed aggregate 3Apr 18, 2020 2:17 pm Thank you very much for your quick reply. I have attached some photos. I’ll be interested to hear what you think. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Silicon in our new exposed aggregate 4Apr 18, 2020 2:33 pm Xenia Thank you very much for your quick reply. I have attached some photos. I’ll be interested to hear what you think. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ They have over applied the retarder and it has pooled along the edges. When they have high pressure washed it it has over exposed those areas allowing all the stones to be washed out. Not a very good job. It should look like this along the edge. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Silicon in our new exposed aggregate 5Apr 18, 2020 2:40 pm The silicon has just made it look worse. Unfortunately that is "set in stone" as they say. There is no real way to save it. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Silicon in our new exposed aggregate 7Apr 18, 2020 6:44 pm [quote="chippy":2kisiaus]The silicon has just made it look worse. Unfortunately that is "set in stone" as they say. There is no real way to save it.[/quote:2kisiaus] Chippy - when exposed agg has been poorly finished, what are the remediation options? Does is simply need ripping up? Can it have a smooth finish added on top? Can you tile over it or what? We are meeting with our builder this week and Id like to understand our remediation options Re: Silicon in our new exposed aggregate 8Apr 18, 2020 9:10 pm Hi alymei As a finished product there is very little that can be done to fix a bad exposed agg job. If the exposure is inadequate the job can be sandblasted to even it up. The job can be honed to a smooth surface which can help to minimise some issues and that slurry that is honed off can be used to make a colour matched patching material, but a honed finish is a different finish and is expensive, though it's cheaper than the last option. The last option is to cut it up, rip it up and redo it. The concrete can be tiled over as it is simply a concrete slab (as long as it was done to correct engineered standards) but it's not really an option for an entire driveway. Any attempts to patch will stand out and won't really be to the standard of the original concrete. Unfortunately exposed agg concrete is an industry that has a fair few cowboys. People (and builders) get tempted by cheap metre rates and the guys who offer it just don't care. Sometimes the jobs go well and look good, sometimes they go bad, look terrible and they just walk away. Their legacy is there for good unless someone is prepared to pay the $$$ to rip it all up and do it again. Like many tradies the guys who are good don't drop their rates, they know what they are worth and know that taking the time to produce a good quality job costs. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Silicon in our new exposed aggregate 9Apr 19, 2020 1:54 am chippy Hi alymei As a finished product there is very little that can be done to fix a bad exposed agg job. If the exposure is inadequate the job can be sandblasted to even it up. The job can be honed to a smooth surface which can help to minimise some issues and that slurry that is honed off can be used to make a colour matched patching material, but a honed finish is a different finish and is expensive, though it's cheaper than the last option. The last option is to cut it up, rip it up and redo it. The concrete can be tiled over as it is simply a concrete slab (as long as it was done to correct engineered standards) but it's not really an option for an entire driveway. Any attempts to patch will stand out and won't really be to the standard of the original concrete. Thanks Chippy - with our job it affects our driveway and 30sqm of alfresco - the alfresco is just disastrous though, its honestly shocking with mass craters over the surface. So we were wondering if tiling over it is an option. Unsure how I feel about our driveway, its a disappointing scenario. For the people who started this post - don't accept the work - its unacceptable IMO. Last year I had a gas leak at my house. 3 days later, I have about 1 sqm of my exposed aggregate paving broken up. I am not sure how to go about getting it repaired… 0 10412 After some ideas on making our patio kid friendly . Currently we have exposed aggregate. The patio faces west and is always in sun even though it has a shade directly… 0 3622 2 823 |