AU 
Extending alfresco slab
Hi Rhys,
A couple of things you should consider-they may or may not be relevant to your situation but worth thinking about:
1. The waffle slab and the new slab will… I have discovered a concrete slab under the pavers on my driveway which consists of a 3-4 inch solid base and a softer brittle 1/2 inch section on top. I was forced to… Exposed agg driveway colour issueIt's a bit hard to tell from the photo but in all honesty I think I'd be getting them to rip it out and redo it.
That looks like a cold join where they have had to stop… Resurfacing Concrete DrivewayBasically once a concrete slab is cracked there is no way to get rid of the crack.
One repair is a thin layer of asphalt. . . . but after two or three years that will… concrete drivewayHi everyone
For the past few months I noticed my concrete driveway has started to crack in multiple places at a rapid rate. I would like to know what is the average… lbrennan started a topic 28 September ago Hi there,
I’m having a pool built next to the side of the house. The pool height and pavers along side of the house are higher than the weep holes.
The pool builder is… Just had some concrete done and found that it doesn't slope away from my existing patio so pooling badly. Also concreted over the bottom of my colourbond fences and… Concrete against fenceI'll be interested as well. Is there a sealer to deal with this gap? I am in a similar situation but have concrete sleepers abutting the concrete footpath. My sleepers are… Plastic membrane under footpathJust wondering if I can install a plastic membrane under my footpath to direct water away from my house straight to a french or channel drain. I am having my retaining… John0322 started a topic 1 September ago Aggregate Spider cracks
Welcome to the forum
correct and properly place reinforcement and concrete doesn't crack in that way,
It sounds like they did a poor job, did you have it properly… Hi all,
Looking for some advice please. I am in the process of replacing all the mortar in the paving… Long story short, moved into a house 2.5 years ago (25 year old house). continually having problems. solve one issue, onto the next.
I've been finding and solving… Hello. I have a large concrete driveway which we had speckled paint done about 6 years ago. Unfortunately the concrete is developing lots of fine cracks. I am unsure if it… Hi there,
Looking at getting a new driveway done. I currently have a single driveway and wish to expand it to a double. My block of land is large enough for council to… Your 1:20 ARI is 170mm/h.
ok thanks for letting me know. It has been suggested to me that the white is not bleaching, its just where the concrete sealant has been removed by the acetone, so it… Cracks in slabLooks like a problem, hard to evaluate without a scale (is your crack larger than ?). There may be a dozen reasons for this, most likely a mistake in the construction technique. Concrete driveway testing - please helpWhen we test concrete in place we have a couple of tools available:
- Schmidt Hammer tests. A non-destructive way to measure the strength of the concrete surface. They can… Silicon in our new exposed aggregate
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… Concrete Watertank buildThanks again everyone.
yes I am getting a pump in to do it and ive got about 3 mates and my dad to help 1 profesional concretor. I Have a vibrator but i dont think it… Cracks in concrete drivewayThanks for the reply Chippy
I have already written to builder with the photographs but no reply yet. Can it be considered as a defect?
Because it is quite low (even lower… slurmMar 09, 2020 9:31 pm We had our driveway poured 4 days ago on a hot day. The concrete has dried but the driveway has turned to have different shades at three different parts (probably as they… Hairline crack in exposed aggregateOh guys, same here. 2 months later the driveway done in the same style, I can see a crack very much alike as above one. Is there any outcome we can see? Paving around houseHere is some information about why foundations on some soils need to kept dry. Lay concrete over concreteJust an update...I purchased a bag of Ardex 46 for about $85. A little expensive I thought for 1 bag but it did the whole lot and managed to get about a 3 to 4mm spread… Garage floor specHi @D_and_@D and As new home
There are 2 issues the concrete slab thickness and the polystyrene void former beneath the slab
Have a compacted sand pad put down and the… Sealing Concrete PathwayIt's not necessary, but if you are concerned about aesthetics, then go ahead. There are more benefits which I am basing off on this (right under the should I seal section… robbert replied 12 October 2019 ago New driveway inspections?Sorry I don't understand why you need someone else to highlight defects with a concrete driveway? If there are defects that are easily quantifiable and are not within… darb74 replied 9 October 2019 ago These are concrete panels of a warehouse about 5 years old, 5m panels and 10m high, this particular one is much slimmer, only 1m wide.
At first just the paint just…
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