concrete

  1. S

    Tiling On Concrete Blockwork Outdoors

    hi all just been offered a job tiling an outdoor bar ...the bars walls are made from concrete block (not breeze block ) and have only been built for around 3 weeks ...just trying to get a few... Read more Continue reading...
  2. S

    Tiling On Concrete Blockwork Outdoors Discussion Thread

    Tiling On Concrete Blockwork Outdoors hi all just been offered a job tiling an outdoor bar ...the bars walls are made from concrete block (not breeze block ) and have only been built for around 3 weeks ...just trying to get a few different opinions on the best way to go about this ..the block...
  3. C

    Concrete subfloor leveling issue Discussion Thread

    Concrete subfloor leveling issue Hi - I ripped up laminate flooring on a concrete subfloor. It was my first DIY project and instead of using mortar to even out any glue that was stuck on or sand off, I used a thin layer of self leveler. I mixed it correctly but for some reason still wasn’t...
  4. T

    Electric underfloor heating onto concrete floor. Discussion Thread

    Electric underfloor heating onto concrete floor. I have a customer who lives in a 200 year old property. The lounge floor he wants tiled which is very thick concrete. He wants electric underfloor heating but I'm concerned he'll lose too much heat into the concrete. He's gone with tumbled...
  5. maccaandy

    Cable in concrete trench corroded

    Hi, A few years ago I had some cables run from my fuse board to my kitchen. The cables were laid inside my house through the concrete base. There was a long trench dug through the house, and the cables laid into it. Now, a few years on, I've had a qualified electrician confirm that the cables...
  6. W

    Best way of hiding tv cables on concrete wall

    Wondering how other people have done this. Would you guys use some pvc trunking giving you access to cables at a later date if needed if you would yous just raggle them into wall?
  7. A

    Best Corded or Cordless hammer drill for concrete?

    I have some projects on my hand and it involves driving into concrete. Therefore, I thought it would be sensible to invest in a hammer drill I am kind of confused whether to go with cordless or corded hammer drills. I know cordless ones gives you mobility but corded drills give you more power...
  8. newfutile

    Metal steps secured to concrete (bonding)

    We have had 2 metal steps installed to cover main supply cables (out to flats) from a Ryefield . when measured IR from MET to steps i got 0.091 MegOhms. The usual calculations are for when a 30 ma RCD is protecting (which is not the case here) 91 Kohm is above the usual value of 23 Kohm I...
  9. Mark42

    Metal saddles inside trunking when only 400mm off a concrete floor?

    I'm a bit out of touch re 18th edition. Is it really necessary to fit loads of additional metal saddles inside trunking when it's only 400mm above the concrete ground floor of a sports hall? All the stuff about premature collapse makes sense, but where, in this case, if the cable going to...
  10. J

    30A Ring in conduit in Concrete wall

    Conduit has part of run in free air, part in concrete with external wall insulation on one side. What derating factor / cable size ?
  11. P

    Drilling prefab concrete

    I have been asked about putting in a couple of network cables that need to go through the internal walls of a building. It appears to be constructed of large prefab concrete slabs, I guess they might have rebar in them but no one knows for sure. I have reasonable access to both sides once the...
  12. I

    ECP's in Prefab Concrete Outbuilding- Damp Concrete?

    Advice required from the more experienced and knowledgeable. Has anyone installed power to one of these prefab concrete garages with a steel roof structure, steel clamps (on concrete panels), steel door mechanism and damp concrete floor? My conundrum is that I intend on upgrading the current...
  13. HappyHippyDad

    Depth to bury armoured cable in concrete with vehicles passing over?

    I will/may be burying 16mm SWA in concrete to route it to an outbuilding (for the kiln I have just been chatting about!). This will be getting driven over by cars. Is there an ideal depth for this? Also, does the SWA require any further form of protection?
  14. J

    Rewiring flat with concrete everywhere.

    Hi Iv been asked to price a rewire in a 9th floor flat with cast concrete walls floors and ceilings the customer is adamant they wont have trunking or lower the ceiling's, putting coving up also wouldn't work due to there being to many obstacles. It is currently wired in pyro chased into the...
  15. Vortigern

    Burying 2.5mm ring circuit cable under concrete floor in flexi conduit

    What is your view about such an installation technique? Asked to finish extension wiring and the installer has snaked wire all over the floor in white flexi. They intend to put an island in and this could easily lead to damaged cables. The other wiring for lights etc. is abysmal like a massive...
  16. S

    Can I avoid applying correction factor (Ci) when cable tray passes through a concrete wall?

    Hi This is about a design problem in an assignment. A cable basket containing several circuits passes horizontally through an internal concrete wall (100mm) and into a ceiling void where it provides lighting throughout the building. I'm trying to size the cables for the circuits and I'd...
  17. M

    What type of electrical cable will be good to bury in walls?

    Hello, I just bought an old apartment and i need to make 4 new dedicated power lines (AC , kitchen, Washing Machine and heater). There are concrete walls and cutting chases will be very difficult, i was thinking to choose some type of cable that can be covered with plaster, without tubes ( only...
  18. M

    Using IEC cable under concrete floor

    Hello I've been asked to supply power to the middle of an office floor to supply the table with power, only a small office but they don't want trip hazards but the don't want floor boxes so to keep there costs down for them instead of it being permanent in case they move I thought of chasing...
  19. S

    How to Remove Box From Concrete Wall

    How can I remove this box from the concrete wall?
  20. Aaronj46

    securing cables to mesh concreted ceiling in apartments

    Good afternoon ladies and gents, when I install cables as per the title I put plugs and plastic pegs into the ceiling as remember being told years ago you cannot cable tie directly to the mesh? any guidance/ reg references wuld be greatly appreciated. Cheers
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