concrete

Hi all. I need to build a small concrete pad 224cm x 86cm x 10cm for a new bin store. I always find it hard to calculate ballast and cement for concrete which I need to get to grips with. Can somebody help me work out my materials please? Thank you!

I’ve started a raised patio project and looking for advice regarding the retaining wall and steps. For the retaining wall I’m digging out 450mm wide and 300mm deep trench to put in a 150mm deep concrete footing in clay soil. The retaining wall will be approx 500mm above ground level. For the...

I'm building an extension on a sloped site which requires some underpinning. Just wondering if anyone has the best method to pour underneath the existing foundations as shown in this picture after the face shuttering goes on. Had various thoughts like creating a wedged gap to pour the concrete...

Morning, I've been reading through the searches on this topic and there are lots but all are slightly different to my situation. I've also been reading Paving Expert but i need some eyes on advice before I make a mistake. I'm planning on adding a gravel and stepping stone path to my garden, at...

Hi there! I'm new to the forum, and i wanted to get some advice. Several years ago, I helped my parents make an epoxy coated pebble patio for her back yard and the end result was absolutely gorgeous, and held up surprisingly well even through loads of rain (and one earthquake). I'm going to be...

Hi everyone – I'm looking for some advice on our 1910 solid brick wall terraced house in the UK which we are planning to renovate. Unusually, it has some prefabricated 105mm thick concrete dormers and I'm not sure how best to renovate them. We are in a conservation zone, so have no choice but...

Hi, I am a competent DIY-er but am finding it surprisingly difficult to get concrete numbers when trying to estimate how much cement, sand and gravel to buy for my project. The project is simple: I am extending a pre-existing concrete apron on which the car stands. I already have a good...

Hi all, I've been using the site for advice while planning my new patio and surrounding wall build. It's been very helpful, thank you all. One thing I'm still unsure about is how to extend my step down onto my patio, I'd like it to be full length, rather than the existing. My question is can I...

After smashing out some concrete pavers and the concrete base to install some drainage I'm left with an untidy concrete edge which will be visible when I landscape the courtyard. I'm thinking of building a form to create a flat face for the concrete down to ground level and pouring in some...

Hi, I am considering buying a concrete bungalow and am going to get a survey, but before I do, is a hole near the base repairable? The hole is about 10x20x5cmabout

Hi, I have some posts which I have concreted into the ground and I want to form a more decorative top so that soil will not be in contact with the post and water will run away. See the photo. Basically the blue part will be new concrete and I need to bond it to the bass already there. Any...

Hello i am replacing my garage door with a door and a window. Under the window, there will be a brick wall. I am digging a trench. 600mm wide and 1m down... According to the below image, how deep should (c) be? I would have thought 1m foundation means from ground level to bottom.... Is this...

I bought some Rhino Shelves a while ago for my bedroom for books. They are all level and built correctly but the seem to wobble. It was suggested to to me to buy some brackets to anchor them to the wall to stop this. I would need to drill holes in the shelves and then the concrete wall. Its...

I have a utility room with a concrete floor. When it rains I've noticed the floor gets wet. Right outside this room are two drains - one is for the kitchen sink and boiler/washing machine waste trap and the other is for the guttering drain pipe from the utility room. There is also another hole...

Hi there, I’m building some brick raised beds on some concrete footings. I laid the concrete today and was just wondering how long I’d need to leave it before I can start building the wall? Also, how long does a brick wall need to cure before it’s effected by rain? Thanks so much

Hello My garage floor already is already concrete. I want to put 100mm PIR Insulation and was told to put 50mm screed on top. I need to put a bit more, as in 100mm screed. is this ok or will it be too heavy? Or can i put 150mm pir insulaton and then 50mm screed? Suggest i put on concrete...

I have an old window which I am getting replaced and in the process of removing some of the timber, the brickwork around the window has crumbled away. Just wondering what to fill this with? I am thinking of building a form and filling in with concrete. Does that sounds sensible or is there a...

Hi, I’m about to concrete some oak posts and wondered if anyone can recommend some bitumen paint to use on the concreted part? Cheers, Ed

I have broken up a solid concrete ground floor and excavated the underlying material (to a depth of around 200mm, level with the footings), to install under-slab insulation. The excavated material appears similar to beach shingle consisting of slightly rounded, mainly flint stones. The largest...

Hi, I have a single-skin brick extension with a concrete flat roof from the 50s/60s that I’m getting re-covered. The concrete roof overhangs the exterior by 100-150mm. I’m trying to decide whether to go warm or cold roof. I originally thought warm but now I’m concerned about potential...