Update on drainage

[seanandruby]

My Webpage
Long awaited as promised dave l. you might need to grab a coffee, or a pint of your choice. Hopefully i've managed to upload proper without the help of the g'daughter

[Dave_L]

Sean! Stunning photos of some very intricate work there that will be buried, no-one will ever be able to appreciate it or the work that has gone into it.

That pipework - does each run/joint have to be air tested prior to moving on?

Great pics, you've doen yourself proud to get them all uploaded and working, very slick indeed. Thanks for doing so, appreciated.

[flowjoe]

Nice work Sean

You use as much denso tape as our lads

Is that to protect the rubber seals from the concrete ? or to make sure each joint passes a pressure test ???

[seanandruby]

There is so many spurs, pop ups etc:it is nigh' on impossible to test as you go. I tend to do a mass test once the chambers and end caps in place. The denso is to protect collar and form a barrier for any movement. It is quite intricate and very difficult at times crawling on your belly most of the time to get in cages. We are on pour 40 out of 72. Each pour has an average of 70 metres of pipework.so we are always being chased by the concrete, no room for error. Average a thousand metres of concrete per slab pour.

[mickg]

excellent work there sean

[haggistini]

flipping heck thats a hellova job you must encounter plenty of concrete rage...

[DNgroundworks]

that looks enough to drive you mad, :p

[GB_Groundworks]

nice work sean, few questions

what tolerance to you work to so when you bring a pipe up through the top of the slab whats the +/- on its position and do you engineers check falls etc or you use an automatic or lazer level or total station. or just string and little level

and are you basically allowed to use as mush pipe/joints/denso tape as you want?

not a job for me crawling around in all that rebar haha, to many mince pies lol

[Ted]

I thought I bent a lot of rebar till I saw that... looks good.

I like those little yellow plastic things you sometimes place on top of the bars to stop people sckewering themselves or catching clothes on the bars. What are they called, where do you buy them? I have mildly injured/caught myself enough times on sticking up bars!

How do you bend your bars? Onsite, offsite or are some ready bent? Do you use a bar bender, if so what type?

[irishpaving]

If on a big site then a bar schedule is normally in use which the order is placed off.

Expensive little job there sean... well done

[Ted]

If on a big site then a bar schedule is normally in use which the order is placed off.

So the guys who sell the rebar bend it for you?

I normally produce a bar schedule but I have to buy the bar in 12m lengths and have my guys in the yard cut and bend it - but I often find I need to set up a little bar bending facility on most sites too, particularly in renovation work.

[GB_Groundworks]

i may be wrong but think there will be a steal fixing crew on this job, sean has his hands full getting all the pipe in let alone all the rebar, we buy ours pre bent to standard shapes or to scedules,

see BS shape codes http://www.rom.co.uk/products/shape-codes.aspx

[seanandruby]

it's +/- 10ml. Most of it is set on the blinding, so i use a plumb bob and plumb up. If set out on the top mat plumb down. To many laterals rod eyes gullies for lazer, i use a/string line to bottom of pipe. 2 wraps with denso. Bars ready bent , some bars weigh over 3 1/2 hundred weight. Some bars bent on site with electric roller bender. End caps ( mushrooms) buildbase or similar. Plenty raring but soon forgot. Busy, hard, tight programme :laugh:

[seanandruby]

Did you note the ( roll mats) rolls of rebar? They are all joined together in large rolls like a carpet and once the chairs and a lacer are placed, they are simply rolled out by half a dozen men covering huge distances in so short a time.

[henpecked]

Nice bit of work there, you dont really appreciate the graft that goes into a job like that espcially when all you see at the end is the rodding points and drain grids.
Looks like a huge pour. How many m2 in total?