https://www.bilthamber.com/corrosion-pr ... reatments/
Contact Pete at the above firm they started off supplying the offshore industry with anti corrosion products
Underground coating
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Yorkshire Andy
- Posts: 9047
- Joined: Thu Oct 03, 2013 4:06 pm
Re: Underground coating
If your roughing it, Your doing it wrong 
Lack of planning on your part doesn't make it an emergency on mine
Lack of planning on your part doesn't make it an emergency on mine
Re: Underground coating
Good call Andy.. used some bilthamer stuff during a classic car refurb... excellent stuff!Yorkshire Andy wrote:https://www.bilthamber.com/corrosion-pr ... reatments/
Contact Pete at the above firm they started off supplying the offshore industry with anti corrosion products
OM
Re: Underground coating
I don't see the replies as negative, more concern.
Many people under estimate the weight of soil on an underground structure.
A ten foot long by eight wide structures with just a foot of earth on top is carrying getting on for two and a half tons (if my mental arithmetic is correct, and it's late and I'm tired), and thats dry, soaking wet you can probably add the best part of another ton. Most people add a few feet of soil, that starts to mount up.
I don't know the OP or what level of skills he has but for me a project like this would be taken to an expert to work out the loading and design.
Not having a go at anybody, just want people to be safe.
Many people under estimate the weight of soil on an underground structure.
A ten foot long by eight wide structures with just a foot of earth on top is carrying getting on for two and a half tons (if my mental arithmetic is correct, and it's late and I'm tired), and thats dry, soaking wet you can probably add the best part of another ton. Most people add a few feet of soil, that starts to mount up.
I don't know the OP or what level of skills he has but for me a project like this would be taken to an expert to work out the loading and design.
Not having a go at anybody, just want people to be safe.
Re: Underground coating
Bunker design is not that simple. the UK government issued a series of designs in a book "Domestic Nuclear Shelters - Technical Guidance." The intention was to give some level of advice on proper design. It is worth looking at as even so called professional designs do not seem to match the tech spec that they suggest. Level of reinforcement in concrete is a good example.
I posted a few pages to this thread a while ago. The information did cover waterproofing but I suspect things will have moved on.
viewtopic.php?f=18&t=13862&p=153867#p153867
Regards
Appin
I posted a few pages to this thread a while ago. The information did cover waterproofing but I suspect things will have moved on.
viewtopic.php?f=18&t=13862&p=153867#p153867
Regards
Appin
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Yorkshire Andy
- Posts: 9047
- Joined: Thu Oct 03, 2013 4:06 pm
Re: Underground coating
Right floor loosely swept and crap dumped in landfill if anyone wants their membership to the forum to follow the dumped posts crack on! If not keep it on topic RE: coatings
since the bickering continued despite my asking nicely for it to stop I've left it to cool for a few days, had a tidy up and reopened the thread THINK BEFORE YOU POST .... I have a 7 year old at home and can easily contain her with a stern look! On here I have a carefully calibrated metric ban hammer with laser sights and gps!
Remember the ww2 Anderson shelters were only 1-2 mm thick corrugated tin. And they took some weight and lasted the duration
https://m.youtube.com/watch?v=azJVy9FSqCU
since the bickering continued despite my asking nicely for it to stop I've left it to cool for a few days, had a tidy up and reopened the thread THINK BEFORE YOU POST
.... I have a 7 year old at home and can easily contain her with a stern look! On here I have a carefully calibrated metric ban hammer with laser sights and gps! Remember the ww2 Anderson shelters were only 1-2 mm thick corrugated tin. And they took some weight and lasted the duration
https://m.youtube.com/watch?v=azJVy9FSqCU
If your roughing it, Your doing it wrong
Lack of planning on your part doesn't make it an emergency on mine
Lack of planning on your part doesn't make it an emergency on mine
Re: Underground coating
Theres probably better stuff, but I'm wondering if that spray on truck bed coating would work? I'm told it's pretty tough and waterproff.(never tried it myself).
Re: Underground coating
yeah that might work too, have you seen "lineX" coating ..... very expensive but looks impressivesniper 55 wrote:Theres probably better stuff, but I'm wondering if that spray on truck bed coating would work? I'm told it's pretty tough and waterproff.(never tried it myself).
Area 11
Endure the pain of discipline or Suffer the pain of regret.
Endure the pain of discipline or Suffer the pain of regret.
Re: Underground coating
No never seen it. I'll have a nose around the net later. Wondering now if it has other prepper uses....xplosiv1 wrote:yeah that might work too, have you seen "lineX" coating ..... very expensive but looks impressivesniper 55 wrote:Theres probably better stuff, but I'm wondering if that spray on truck bed coating would work? I'm told it's pretty tough and waterproff.(never tried it myself).
Re: Underground coating
A suitable coating: how about fibreglass?
Google 'sheathing a boat' eg http://www.robbins.co.uk/pdf%20files/sh ... _guide.pdf
https://www.ecfibreglasssupplies.co.uk/ ... Fibreglass
This is for discussion and IS NOT a 'how to'!
Sandblast the steel (resin adheres brilliantly with mild steel but you must not trap existing surface rust in)
prime with resin
lay (say) 2-3 coats of f/g mat
then 'hoop' the structure vertically with paper rope (you could use closed cell foam in a 'D' section - with the flat part stuck down
lay (say) 2-3 more layers of f/g mat over the whole surface INCLUDING the hoops.
coat with f/g top coat
Your tunnel would appear to be corrugated vertically but the f/g would give you a smooth, waterproof surface. The benefits of the corrugated f/g is that it would significantly increase the strength of the tunnel - and be waterproof.
REMEMBER you must insulate your structure unless you are happy to live in it at around 10 degrees centigrade....... Personally I would cover the tunnel in a couple of layers of thick plastic sheeting a few inches of insulation before topping with another layer or two of plastic.
If you wanted a belts and braces approach don't just pile the dirt on but fill fertilizer sacks with dirt, seal them and then cover the whole structure with these in a 'bond' (imagine bricks being laid so joints don't overlap). Then fill the hole.
Google 'sheathing a boat' eg http://www.robbins.co.uk/pdf%20files/sh ... _guide.pdf
https://www.ecfibreglasssupplies.co.uk/ ... Fibreglass
This is for discussion and IS NOT a 'how to'!
Sandblast the steel (resin adheres brilliantly with mild steel but you must not trap existing surface rust in)
prime with resin
lay (say) 2-3 coats of f/g mat
then 'hoop' the structure vertically with paper rope (you could use closed cell foam in a 'D' section - with the flat part stuck down
lay (say) 2-3 more layers of f/g mat over the whole surface INCLUDING the hoops.
coat with f/g top coat
Your tunnel would appear to be corrugated vertically but the f/g would give you a smooth, waterproof surface. The benefits of the corrugated f/g is that it would significantly increase the strength of the tunnel - and be waterproof.
REMEMBER you must insulate your structure unless you are happy to live in it at around 10 degrees centigrade....... Personally I would cover the tunnel in a couple of layers of thick plastic sheeting a few inches of insulation before topping with another layer or two of plastic.
If you wanted a belts and braces approach don't just pile the dirt on but fill fertilizer sacks with dirt, seal them and then cover the whole structure with these in a 'bond' (imagine bricks being laid so joints don't overlap). Then fill the hole.
Re: Underground coating
As someone guessed. I spent 15 years learning and working as a Sheet metal/Fabricator and can weld. Was only going 2 foot deep. But, looking at a plot of land which I'll go about 2 metres below ground. But, that I looks to be 6mm think walls with channel frame. I'm thinking it's about 4 tonnes ?