Paving & Concreting
New Concrete Laid
I had new concrete laid, extended the alfresco and had the sidewalks concreted too. I noticed the concreter didn't put the expansion foam anywhere, there are expansion…
Oct 30, 2023 7:25 pm
Bondek vs Speedfloor
I have used both and I think Speedfloor is more convenient for services due to their beams already have services penetrations. However, Bondek allows thinner slabs overall…
After some suggestions and ideas about how to put a concrete path around the drop edge beam area on our new build. We are required to have a concrete path…
Thanks splashers, that makes sense.
The waterproofing guy used this Davco product, I will raise the issue with builder and hopefully get resolved with him - if not…
Right sand to use?
I'm putting a new floor in my kitchen, slate flagging on a standard concrete slab. I have allowed for a bed thickness of up to 20mm to accommodate the different…
Concreting surface too high
It will be neat but you won't have much freeboard. At least they are not weep holes. Are you in a high intensity rainfall region?
The regulatory slope is only required…
Concrete Perimeter Help and advice
Yes, unless you are in a low intensity rainfall area or the area is protected from rain.
Do you have access to NCC Part 2 or can you download it? I can email you a copy…
Concrete driveway: joint spacing
I need a guidance on how far I need to space expansion joints in the concrete driveway and its type (keyway/foam.)
Contraction joints are at 3m max for a 125 slab.
May 01, 2023 1:29 am
Concrete floor raised? issue?
Just an update. Its suffering from "slab heave". Issue is the 2 downpipes which were directed away from foundation has ran back. Our last downpour was a good 6weeks ago.…
Mar 23, 2023 11:01 am
Driveway concrete rejuvenation
My driveway is looking pretty dull. I am weighing between painting and resurfacing.
It has no cracks or major damage. Has a few chipped edges.
I understand that pressure…
Dec 30, 2022 3:04 pm
Remove coating on concrete driveway
It's probably pebblecrete or something similar.
The only way to remove it is mechanically. Basically jackhammer and then grind to remove any left over.
There are companies…
I have a concrete patio that runs all the way around my Granny Flat.
Water pools in large sections at the back because that side is lower than it needs to be for the…
Concrete cure time
I've put down a 400x400x90 pad using some general purpose concrete for a pillar letterbox. The box will be fixed with a Dyna bolt.
How long would I need to wait…
Thanks for all the advice here.
Since it rained after laying the concrete, there have been patches on the concrete. Concreter is suggesting painting over it. Will that…
Its a total length of 7.5m. The idea is to dig a trench next to it, drill holes in the existing footing and insert rebars to hold them together. Im a bit iffy about it…
Concretor jargon - apron around the house
F.62 steel reinforcement with bar chairs to total area. Abelflex expansion joints and steel dowels to existing brickwork and concrete.
Seems a reasonable specification
Multiple cracks on 4 day old driveway
The purpose of cutting control joints is to release concrete shrinking stresses and the cutting should be done within 24 hrs of the concrete being laid. Four days is too…
Hytec Concrete Colours - Dalmation
Best thing to do is call Hytec and ask if they can give you an address in your area where it has been poured.. also ask them how long ago it was poured as for the first…
Stormwater runoff from neighbour
Hard to say from that photo, generally normal run off from natural surfaces are allowed, run off from hard surfaces should be to stormwater drain. Driveways on council…
May 18, 2022 10:54 pm
Best pavers (supplies) in Sydney
Quality is hard to assess, porcelain pavers might do better on a concrete base too. Just pick what you like at a price you can afford. TFO is pretty good value, Amber good…
May 04, 2022 10:05 pm
Proper method for laying concrete
Ask the Concreter how the drainage works. Even tell them you’re concerned about damp getting into the structure and causing damage or worse (mold got into my bedroom…
TLDR: How would I restore a sandstone/limestone (?) slab so that I could lay interior flooring. What kind of surface prep and would self levelling concrete work?…
I recently got a second crossover done on my titled land . As there is a neighbouring empty lot . So I went to my block just to make sure the crossover didn’t…
Opinion on concrete path please
First things first, yep it is a very messy job that has been done with no care taken.
Things to consider.... is it ORG or a drain? so could it have been…
Strip drain alternative - landscaping
I’m planning a slot drain in 20mm porcelain pavers, cantilevered over a cheap plastic drainage channel. I’m thinking of getting a 316 angle lip welded up for the…
Mar 09, 2022 7:07 am
hi all, keen to know what can cause thrive marks on exposed concrete?
I recently had my driveway done and having similar issue, is this considered a defect of concrete…
This will always happen with this construction technique, the fill will always subside with time even if compacted. I’d just accept it. If not then you need a block wall…
Feb 21, 2022 9:00 pm
Chipping concrete slab rebate
The concrete slab rebate is extending across the bricks by 10-20 mm
Concretor mentioned for perimeter concreting, that extension needs to be chipped to maintain the…
Most small construction companies are closed for at least 2 weeks from Christmas, and maybe longer!
Paving over earth and concrete.
#unanswered - can anyone advise me on if this would be OK? Keen to get sorted before Christmas if possible so need to understand any considerations for the paving aspect.