concrete

Please does anyone know how to calculate the volume of concrete produced from a bag of quickset. The sort that's ready mixed and you just add water. I'm putting a fence up and have calculated that I need around 35 litres of concrete per post. Problem is that I don't know what volume you get from...

Hi. Quick question: I have rigid insulation upstands around the concrete slab in my extension, and am using self-levelling compound on it before laying engineered wood. Do I trim the insulation and level over it (creating a thin cold bridge to the masonry/bifold frame) or level first and trim...

Hi. What ratio of Portland Cement/ sharp sand/ aggregate would you recommend for building up existing concrete footings of a small bridge? 3m span. The river water has 'undermined' the exposed edges of the footings. Not so much 'undermined' as 'side scoured'. So some of the concrete will be...

Got just 2 layers of a rustic garden wall to patch up just 1m wide. Made of broken pieces of pavement slabs 50mm thick. Mortaring about 1 cm thick layer with same thickness aggregate thrown in for strength. Got maybe 3 or 4 handfuls wickes ready mix mortar bag left, but maybe little short to...

I am building a garden pond and going to lay the concrete footings this week. However, I have noticed that the UK is going to be cold next week. Will it be ok to lay the concrete or wait until it warms up? Thanks

I bought this fish tank without thinking about the weight it will be putting on my floor, the tank itself weighs roughly 150kg and sits on a steel stand which about 25/30kg, with water, gravel etc this will push the 800kg limit. I live on the 2nd floor of a 1950s/60s council building and my My...

Hi, I am a total novice I layed some garden border edging blocks 3 weeks ago, I dug a 10" trench leveled it and tampered it down poured dry concrete in the trench leveled that, set the blocks in tapped them in and leveled them off (forgot to mention the blocks are 8"x 5"x 2") I then sprayed...

Morning all :-) We’re renovating our recently purchased home. The driveway is (once was) concrete - but it’s all broken up and crumbling. Past the point of fixing small areas. We’re considering gravelling it - it’s a really large area though (front can house 3 cars then it goes down the side...

At the base of the soil pipe leading to the drain, there is a hole in the concrete which reveals the main sewer pipe. What is the best way to repair the hole?

Hi, The house is 3 bed semi and has lead pipe (for mains water) which needs to be replaced. The pipe is running from the side (I think) of the semi detached house. The problem is that the side has been concreted and the driveway (on front) has tarmac. So there will be lot of digging (or moling...

So, this so my first concrete experience so I’m truly new to all of this. I have probably done this at the wrong time of year, but I’d like to try and find a way around it if that’s at all possible. I have dug a hole aprox 4 x 2.8 meters and hit a gutter pipe drainage on the way which I’m...

Got my driveway which is in concrete at moment with a lot of cut due of work and repair been done during the years. I was thinking to resin bond but quote are sky high and don`t have money for it. I was wondering if there is a cheap way to improve the look with some think paintable product or...

I'm at a loss as to what decision I should make. I'm just in the process of buying a new lower ground floor flat in London which is approx 50sqm. Its been unoccupied for a few years and we will be renovating before we move in. In the late 80s the wooden floor was ripped out and replaced with a...

Hi guys, Our garden is currently two tiered. Grass furthest from the house then a raised (~500mm) patio made up of 600x600 concrete flags adjacent to the house We need to install a small raised deck roughly 3400x1200x600 (WxDxH) to provide access to the back door. I am struggling for a...

Hello, I would like to build a porch on the front of my house and while I'm comfortable enough with the walls and roof, I'm not sure what foundations I should be building on. At the moment there is an old concrete slab around the front of the house, this has got a large crack near to a...

Before tiling on concrete What’s the best thing to repair deep (5mm+) holes/divots/chips out of concrete?

Looking at renovating my garage in the near future, however I've no idea how serious the cracking in some of the concrete roof beams are. It's an old concrete sectional garage (no idea how old), and some of the beams have crumbled to the point which the rods are exposed and rusting. I've not...

What Colours does Tetrion Filler Come in? The reason I am asking is that I need to fill in some small cracks and one quite large hole in the side of a concrete door step. I was thinking of buying the above filler for this. The door step is a light sort of grey colour. Unless I have missed...

Hi. We have some old victorian rope-top edging in our front garden. Over the years, some of the pieces of edging have moved (pushed away from the path). What's the best way to secure these in the right place - someone has suggested a dry concrete mix. I'm looking for the simplest solution -...

We have had an extension and wet UFH installed across the whole ground floor (new and old). UFH in the new extension is clipped on top of celotex. UFH in the existing is embedded in an insulation board. - about 45m2 in total We've had a floating screed installed (Longfloor CT-25/F5) and 3...