Filling The Inspection Pit & Laying A Concrete Slab
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- เผยแพร่เมื่อ 4 ส.ค. 2024
- In this video I fill the inspection pit in my workshop and lay a concrete slab in the process of completing the works to the floor of my workshop, with a little help from my brother Alan. The pit was filled with household rubble following refurbishment works at our property. We used a mix of sharp sand and cement to create the concrete mix that we used. I believe that the sharp sand acts as both the sand and the aggregate content in the concrete (that's what I'm told anyway! This was my first time using concrete for anything on this scale before. This should not be viewed as a how to video, it's more of a how we did it video - having said that, it did seem to work out well! We used a cement mixer to mix the concrete, and screeded the finish using a piece of timber.
#woodworking #workshop #concrete
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You’ve done a strong mix but that’s fine
The brick in the mixer is a good idea we always do this
The pit will be fine if your not putting very heavy weights over it like a vehicle
The reinforcement in the concrete is ok
You did a good job for a novice
Keep the videos coming
Nice that your supporting local 👍
They're a great company, really nice lads and good advice
Fab job, good to see Baker’s getting some air time. Perfect way to use up rubble and scrap metal!
When I saw you putting the medal in the concrete . I thought of my Dad doing our front porch ,he used old bed springs . And any thing else he could get his hand on ! Lol thanks for the memories! Regards BobLee The front porch is still there !!!!
When you chuck a couple of bricks and a bucket of water in the mixer to clean it out at the end of the day,Its called going home music😁😁😁😁😁
You did well there. Very well. I did one even bigger as a garden patio - by myself - and that was one heck of a day! If anything, you made this look relatively easy for the big job it was!
Nice work, and all the best for 2020.
Great job, you did fine.
Good job mate i laid a drive on my house 40 yrs ago using the same method as you the only difference being was the size and i used a Plasticiser in the mix... Not necessary but like you I was working on advice and all these years on its still down and crack free
Love that you tackled this task even though you've never done it before. I know nothing about concrete, but the result looks nice and solid XD I loved the "JUMP test" at the end. Well done ^^
That hallway floor is stunning mate. 👍
This turned out well; you got it much flatter than I ever have. I was impressed with the jump test; I think they call that the appliance of science don't they?. Thanks for sharing. Best wishes.
Hi Layed on Christmas morning! thats dedication.... Steve
Great job, I'm all for using (recycling) what you have to hand 👍
Nice one, Keith. Looking forward to seeing the video about the rubber matting. Fancy doing something similar in my own garage.
You can learn from all my mistakes! 😂
Been thinking about that for my workshop
You did just fine Keith,and what weight you will putting on it is more than adequate, worthy of a 5 ☆☆☆☆☆ rating,take care and keep entertaining people
Well I'm no cement expert, but it looks good to me. There are two positive outcomes to this, one supporting your local businesses and keeping a whole lot of waste from going into a landfill. Well done all around!
This was great 👍🏼
Ct baker is great, currently buying some softwood sleepers to do my back garden, buying 2 a month, the joys of being broke, very friendly and knowledgeable at the Stalham branch, and they have a great offcut bin, always got some good, cheap wood in it.
Keith has some rustic wood sleepers going cheep ;-)
looks good to me nice one
Not a bad first slab, mate 👍🏽
It will certainly do the job you need it to.
08:07 - What's Matthias Wandel doing in Norfolk?
good job . You should have sprayed cement with water several times. To reduce the heat of cement to prevent cracks
I was waiting for thiiiiis
Pretty good job there mate. I might follow your tactics at some point actually, I've got to lay a foundation down in the garden.
If you ever borrow the mixer again a tip I learned the hard way, when using my mixer in Spain on my own - put the mixer upside down (opening face down), locate the stand in place, pull the mixer back towards you lifting it to it's feet.
Nice job Keith, one hole utilised.
Glad I don't have to keep stumbling over it and lifting up anything on wheels over it!
Another great video Keith and a job well done. Hopefully a nice level floor for setting up shop in. Oh and I love the kangaroo jumps at the end for good measure. Keep it up mate and all the best with future projects.
Great job
A great job as usual. I hope it stands up to all the rigours of work in your workshop although if I had an inspection pit I would. have kept it because I like tinkering with cars as well.
Cheers! I wouldn't get a car through my pvc for anyway! 😂
@@RagnBoneBrownYes , I did realise that but never mind. All the best and look forward to next week
Ballast is what you need for strong concrete Keith ,the sharp sand in effect makes a wet floor screed not structural concrete . We use to throw two half bricks in the mixer to clean out. Oh and as lollandz states add water first . Happy new year .
You could always spread some levelling compound on top of the whole floor, (it self levels) it will give it a smooth finish on top of the concrete which makes it easier to clean up
Can't believe you where grafting like that on Christmas day Keith 🤶 was your lass happy with you🤔😉. Looks like a solid job.
A a child playing in the building site my house was on I remember at the end of the day the noise of the bricks in the cement mixer and how they all got rounded corners as the builders reused them. They put water in as well. The brick loosens of the cement
last concrete work I did got hoof prints when this past year's fawns walked across it. It was a fast set, vinyl patch mix, but I guess not fast enough
I intend to do a bot more work on that walk, but now my Dad wants the prints. So I guess I'll cut them out before covering over.
Some archeologist in the future will have fun discovering what you have entombed for the future. Cheers John
I laid a garage base about 40 years ago. Being on the side of a hill i had to dig one side out but the far side was about 3ft deep i was scrapping a mini van at the timeso most of that was cut up and put in as filler .40 years on and no cracks in the base yet
I love your vids...you're the DIY have-a-go hero for the everyman (or woman). I have next to no experience of any of the things you vlog but inspire me to give things a try. Keep up the good work...Christmas day is commitment! The house & workshop are coming on great. Top man Keith
Thank you!
I thought filling the pit with rubbish was funny enough, but then it came time to fill the concrete with SCRAP METAL!! I absolutely lost it. Keith you are the reason I'm cackling in my kitchen at 4am 😂😂
Well i know nothing more about doing concrete than you,but the jumping looked spot on and you put alot of effort into it 10/10
😂
It may not be the best or strongest job but who cares. You done your best & good for you for posting the video.
id use a self levelling compund before glueing the matting down
Good job, in my eyes. I have some experiences with concrete but not very much.I think it will held up well. But one never knows.
I'd suggest, when you are doing the rubber matting, on the part where the concrete slab is now, you shouldn't glue it. Try to make the matting there semi-removable by
using double side tape or something similar. Thanks for sharing the video.
Darn, would have thought that would be a great place to put extraction kit, nice and quiet and in winter you're not wasting heat since its keeping the same air in.
Shame it could not be used for storage but I think you made the right decision for the right reasons. Wait and see if people with more knowledge say anything about your 'Mix' but ( little knowledge either), I would of thought some aggregate would have made a better mix. Happy New Year Keith.
Cheers! Yeah it is a shame but I'm glad I don't have to think about it anymore 😂
Happy new year!
I'm glad you went this route Keith. While I am not in favor of working on Christmas Day, I'm glad you had help. You did put your mark in the wet cement didn't you?
In a mixer like yours.
Add the water first (fill a bucket with required liter's).
And don't use a brick for cleaning, use 3 or 4 large stones from the beach.
@@castleladpaza76 they are too big and to rectangular.
They will and do stick too much to the wings in the mixer and do not cover the curved surface of the barrel.
@@castleladpaza76 fair enough, maybe we just don't feel the same about cleaning. The video at 6:50.... If you ask me that is useless compared to some nice fist size stones. 😁
I know it will be somewhat cleaned with bricks or even half brick's, but not as efficient as stones.
But a hammer the next day is also an option 😁
No I'm from Denmark and the mixer is a little smaller here actually. And the barrel is more curved towards the opening.
Have you tried stones instead of bricks?
Agree with not using bricks, they are meant to go in walls not mixers. In the past I have used stones and even beat the drum with timber or a hammer but realised that only dents up the drum which just gives it more places for everything to hold.
I sometimes use gravel if its been a hot day but I find it far easier to keep the mixer clean between mixes, quick rinse around the front with a brush after emptying each mix. Spend a few minutes at the end of the day to clean it out.
@@rob8978 "they are meant to go in walls not mixers" where are the stones meant to go?
@@stevecollins9450 Wherever you want them to go.
Keith Did you not think about some Damp proof membrane under the slab if the pit was that wet ? Keep the moister level a little lower in the shop going forward ? Or is the hole garage floor not damp proofed anyway
Hi Keith just watched this video. I have a pit in my garage and I just moved in it is full of rubbish and rubble I was thinking about removing it and using for paint storage and o thing things in plastic tubs. If I empty the pit will in let much more moisture in my garage? I was also thinking of fitting new wooden floorboard over it. I would welcome your thoughts on this. One last thing did you ever work at a place called Crystallac
Merry Christmas Bro…whilst you’re here will you just give me a hand 😂
Hi Keith I have just watched this video. I just moved into a new property which also have a pit in the garage which has been filled with rubbish and rubble, I wanted to use it for storage, for oil in plastic bottles and paint and other items in plastic boxes? The pit has a wooden floor board covering which would replace with a new one. I would welcome your thoughts on this ? Finally did you ever work for a company in Dereham called crystal lac . I await your reply thank you
Gd job Mr b. Where did you get the floor tiles for your hallway please? Looks awesome btw.
www.tiles-direct.com//floor-tiles-c27/bct-feature-tiles-c1005/feature-beatrice-33cm-x-33cm-wall-floor-tile-p3801/s3796
@@RagnBoneBrown thanks for that 👍
Great job, but if you do it again my advice from experience is not to put the shovel too far into the mixer when throwing sand/cement in. If you misjudge the shovel will get caught in the blade (and it hurts wrists/head) 😂. But overall a nice job especially on Christmas day!
Gee that’s a busy road you live on have you been upgrading the windows to double glazing as you do the house up ?
Hi I'm just attempting something similar in my garage what size was the pit that you were filling and how much of the sand and cement did you use ?
Probably already been said but next time you use a mixer...... put the mixer on the rim of the chamber, insert the stand, and lift the whole kit up pivoting it on two of the feet..... much easier!👍 but worth a giggle 😂😂
I could have "stored" a couple of people down there (indefinitely) if you had called me first 😉
6inch slab would have been preferable for metal reinforcing Keith .When mixing concrete throw in a shovel of cement first so it's not sandy at the bottom of the mixer.
From person who don't have any idea on how to work with concrete to a novice, it held in the jump test with a recognizable floor sound, therefore it is a floor. Good job.
should of put a time capsule in or made some concrete wellies for an enemy!
Some type 1 and compacted down wouldn’t have gone amiss. Also some ballast would have been better with the sharp sand and cement. Filled a hole though so should be fine and it’s not loaded up.
The less wet the mix it the stronger it will be when it sets , so that first batch will do a nice job.
Actually too wet or too dry makes for a weak mix.
@@oneflymanflies4924 only in that it can be too dry to be workable. Thats why you can put additives like super plasticizers in the mix to make less wet concrete flow better.
The less wet the mix the stronger it will be, as long as it does not dry out when setting.
i even use big rocks when i can instead of rebar, and i have never had concrete brake, people push rebar because they need to sale it.
Concrete has compression strength but not tensile strength, as the other commenter said above it doesn't flex (bend) without cracking. The steel helps prevent this as it has extremely high tensile strengh. On a small slab like this one in the video that is filling a pit that was locked in with a steel perimeter it probably wasn't needed... That being said the fill material may compact more if moisture gets into the pit and if that's the case the concrete may crack but the steel in the concrete should hold it together if a void ends up under it.
Think of it lile this Rome didn't use steel that is why everything is arched so it can carry the load to a compression point (vertical load), where a modern freeway like that is all over in the USA has huge spans with very little support, it is the steel in the concrete that allows it to happen...
The only bad part of steel is it can rust and if that happens the steel expands and will actually cause the concrete to sprawl and crumble, it is why WWII bunkers are already looking terrible in the wet areas of Europe. For the most part no post industrial revolution concrete (after steel became cheap) that has steel will last like roman structures but Granite rocks work like concrete and don't provide tenional support ant I wouldn't recommend using them in place of steel if someone's life maybe depending on it in say like a structure or bridge or retaining wall.
You were worried about a brick? We use a stick of dynamite in a truck to dislodge everything from the inside of the mixer drum.
I guess that’s the best option considering you’re not planning to run an oil change business. I like the pit. But you had compelling reasons for getting rid of it.
How are you going to stop flooding when it rains?
Christmas day spent concreting 😳🤭 You have a cat, how did you manage to keep it away from treading in your wet concrete? 😆
Cut the face and sides of the cement bag with a stanley and lift from the middle then cut the back face of the bag.
You could spray some water on fresh concrete to help it cure, and cut the slab in two or three after you poured the concrete to prevent the cracks. But it looks good. #trustmeimanengineer
Brick in mixer to clean is SOP never seen it done any other way in 30yrs
Great video, as always, but man, they drive like crazy where you live (at 5.50) ;-)
You did a great job guys!👌The only think that i am worrying about is the rusty metal frame around the pit which can possibly create a crack in the concrete.
Basic concrete mix is 1, 2, 3, 0.5
Cement sand gravel water
What you've used is little more than a scree it might not hold up to much abuse
It'll be fine, people under estimate the power of cement
You do realise that gravel is just a filler, right? It doesn't add anything, literally, other than reducing the amount of cement, sand and water used. The slab will hold up fine.
@@MKRM27 Well in that case, you'll understand that not having gravel in concrete doesn't change anything strengthwise. Also, my comment wasn't even directed towards you, since there would've been a tag, like this comment has. It was directed at Dean
Gravel is an integral part of concrete its what gives it its strength
Its not just filler
Thought you'd fill it in
It takes 28 days for the cement to fully cure, and the acids in the cement to settle out.
That's too fully harden, it can take months too fully cure
In the UK 1 week to harden then drive heavy machinery over is fine
You did a fine job with your brother there. I have also enjoyed reading some of the comments from the keyboard cow-punchers.
I did something similar recently but used rusty nails mixed in layers. Figured it was better than nothing.
i think throwing a brick into a moving machine would only be a bad idea if its a washing machine lol
I was expecting some drama which is why I turned the camera on, thought maybe it works be my first viral video ha ha but it was quite uneventful!
My dad always used a few bricks and a bucket of water to clean the mixer. After a while you end up with round bricks. He managed to convince me they were special round bricks designed for cleaning it
I'm sure Photonic Induction did the brick in the washing machine thing on one of his TH-cam videos. Who ever it was, it was quite spectacular!
😂
@@intomlinson this one? th-cam.com/video/vROdVsU_K80/w-d-xo.html
my god you filled that pit in?!
It costs like 3k to build one of those.
I think gravel should normally be used, but I am no expert. I used gravel when I made a small platform outside my conservatory to place an air source heat pump condenser on. It has so far survived without any cracks
It’s a shame that that space wasn’t more usable or more easily accessible.
You have made possibly one big mistake you have not inserted a damp proof membrane and you would usually do the following: 1. hardcore, 2. sharp sand, 3. damp proof membrane, 4. steel reinforcing, 5. concrete. One of my old clients was a concrete flooring contractor and they were the first UK company to lay about 20,000 sq metre concrete floor in one continuous pour. The concrete wagons came in 2 at a time for 18 hours and 3 concrete plants were used and 3 crews were used together with a laser screed machine they gave an accuracy that had never been achieved before using the traditional methods. I supplied the lighting which was 30 KW of halogen lighting which ran all night and was repositioned during the night
Hi, will any level of support on Patreon give me access to the other videos you mentioned or will i have to be a supporter at a certain level?
Good work Sir, I have an inspection pit in my garage unfortunately at the wrong end I have been looking for a solution to filling it for a while. I'm doing some jobs at home today so I thought I would nip inside have a brew and watch your video
You should have gone down the road a bit more as CT Bakers are bloody expensive. I Have been in a few times and walked out empty handed. Give S&M a look, I use them for more things i need as they are 5 minutes away from me. Just keep Driving down the Road past the turning for C T Baker.
Any enemies you had are now missing, I presume.
It probably won't be a problem, but make a mental note to yourself that you didn't allow the metal to rust first, and mention it to the next owners should you move out. It might take 25-50 years before anything shows up, but you'll probably see signs of concrete cancer eventually. Obviously it ain't structural so nowt is going to go wrong, but it'll need digging up and relaying eventually.
No doubt the job will last well enough with foot traffic but not an adequate base for heavy woodworking machinery. Minimum depth of 100mm for light duty concrete, 150mm for machinery. It wasn't concrete as no aggregate, I would call it closest to a screed mix. The infill would have been fine if it was consolidated every 150mm or so and it was just rubble - the extra waste material added will not be stable. Ideally the rubble would have stopped 150mm from surface and then a layer of sand to fill voids and smooth the surface. DPM on the sand would stop the damp and make for stronger concrete as it wouldn't leach the water out whilst drying. Also, the steel should have been removed as it will rust and break the smooth edge away. Any steel wire or rod makes OK reinforcing but flat or angle steel makes the concrete much weaker. Not completely sure that was strictly legal - clean rubble is allowable as a product but the rest of the waste was a bit shaky. Having said all of that I would imagine the worst problem you will get is a bit of a hollow sound on that bit every now and again and it certainly solved two problems.
You win the most constructive comment award! Thanks 👍
I have made too many mistakes over the years and learnt the hard way. When I said remove the steel I meant the angle iron around the edge that was cast into the floor, most of the added "rebar" was OK. Many thanks for hosting such a great channel.
Well there are definitely couple of things I would do differently (not being smart ass just trying to provide feedback, also not saying my way is the only/best way)
1. Ruble as a base is OK bud you should have compacted it in small layers if two bricks lock up you can bash it how ever long you want but cavity under it remains (maybe you have done this off camera dont know)
2. I would remove those stairs, they just create more unfilled cavities and makes filling more difficult just braking or cutting bolts and throwing everything into scrap metal is fine
3. Scrap mesh at the top is ok but only the big pieces actually does something, best way (using rebar) would be to drill into sides of existing floor insert rebar into hole and tie it together with the rebar in new concrete therefore creating mostly monolithic slab. Rebar is used not to make concrete stronger but rather to make it more flexible thats why those small pieces of metal is nothing more than space fillers although they wont harm anything so no pity
4. Best way to mix concrete is to count shovels use whole bags of cement and using buckets for water to have consistent mix, also I use water as first ingredient so that nothing sticks to the mixer
I don't think random scrap metal is anywhere close to a substitute for rebar.
It's not going to be as strong as rebar, but definitely stronger than no rebar. I've used steel mesh like that for concrete shed bases a few times. Seems to have worked
Maybe thinking isn't for you then.
@@nathanlucas6465 the mesh was fine, but the random stuff around it... not so much.
@@spunkmeyer43
I think you are wrong.
Told ya
Obviously your not a car guy sacrilege 🤣
Isn't it just cement if there is no aggregate in the mix?
looks good to me, but I like you am not a concrete professional.. I am looking forward to an update in 6 months to a year.
50 Mil would have been adequate, but it's just a work space. I was a safety officer for the local bus company and 75 Mil was enough for 10 tonne busses
Why would you get rid of inspection hole!? I build my volvo 740 2JZ 1140whp/1341Nm with the help of inspection hole axle and engine swap... Thats a stupid mistake to get rid of that hole its hard work to build. Now you have to drive stock car for the rest of your life so boring
Very disappointed in you. You didn't write your name or leave your hand print in the cement 😂
You definitely won’t get any discounts at JEWsons
Personally I think it was a mistake to fill the pit in, you never know how it could have been utilised, even as a selling point if you decide to move on in the future. There's paint on waterproofing you could have used to seal it and it it would have been fine. Your poor bro, turned up expecting a sherry and mince pie and you put him to work on the shovel.. 😉
I don't trust the paint on stuff too be honest. Besides this is a forever home so it had to go
I have to agree. Kinda bummed bro.
Great video but a foolish idea.
What a waste of a valuable pit