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Posted: Wed Jan 27, 2010 7:14 pm
by GB_Groundworks
i can remember seeing on a previous post an explanation why you should always use a dpm under slab, was it ground sucking moisture out or mineral corrosions can't remember anyway.
the point being i need an explanation to stick up my dad nose haha, poured a slab yesterday for a front of shop car park only 5x5mx150mm.
excavated 300mm, terram, 150 mot, 150 conc with 2 layers mesh.
but he had a hissy fit that i'd used dpm under slab, as concrete wont dry out so no one will be able to drive on it today, i informed him its min 48hrs anyway.
but hes giving it i've been doing this x number of years etc argument continues haha.
was previously a proper bodge job 20mm bitmac on clay
Posted: Wed Jan 27, 2010 7:30 pm
by mickg
bit of both really
tell your dad I think he is wrong too 
Posted: Wed Jan 27, 2010 7:32 pm
by msh paving
I was always led to understand the reason for it is to stop the water running out of the concrete as its poured, and to stop shrinkage cracks forming, also to keep the slab form being damp after its cured and finished MSH
Posted: Wed Jan 27, 2010 7:34 pm
by msh paving
I also think he is wrong......
Posted: Thu Jan 28, 2010 8:39 am
by Tony McC
I don't think he's wrong: I *know* he's wrong! 
The reasons why are explained on the page to which LLL referred you.
That old "we've always done it this way" routine just doesn't hold water. That's the Luddite attitude and we'd never see any improvements in our trade or in society as a whole if we stuck with doing things the way we've always done them. That being the case, I suppose your owld fellah is still driving to jobs with the horse and cart and using an abacus to help him price-up jobs, because that's how they always did things!
Posted: Thu Jan 28, 2010 11:29 am
by GB_Groundworks
not an abacus fingers and thumbs hahahaha lol, if the structural engineer/expert tells him its no problem if i tell him he doesn;t believe me haha
still my dad at end of day, just got him into power screeding and floating after watching my jobs rather than the old 6x2 tamp with a bow in it hahaha
my bad i should have know it was on the site, but i was looking for the thread instead haha
Posted: Thu Jan 28, 2010 1:23 pm
by lutonlagerlout
my old man is exactly the same giles,we argue like cat and dog about silly stuff
I have only just got the old fella used to multitrack in soakaways,
i just put the dpm under slabs without telling him :;):
LLL
Posted: Thu Jan 28, 2010 3:30 pm
by GB_Groundworks
haha we had a 15 miinutes slanging match the other day as the roofers had pointed the ridge tiles in blue mortar(natural slate roof) on all the roof apart from 1 Y junction. i said it wasn't acceptable and he said its was ok. i said it wasn;t on a 1.6m house. he said no one looks at the roof but it was right where you could see it from where the patio will be. roofers on a price and hadn;t be paid so i said get them to re do it while they're still on site.
silly but we both very similar so we clash haha
bit that offended me, from scaffold
Posted: Thu Jan 28, 2010 8:32 pm
by lutonlagerlout
does my head in when blokes do stuff like this
shows a lack of conscientiousness in their work
I wont have "that'll do"
I hope they have changed it giles
considering they did it wrong in the first place
LLL
Posted: Thu Jan 28, 2010 8:44 pm
by rab1
at times, i like the lads to leave sh1te like that behind, thats what you specified and are paying for is my answer. you pay for a mini dont expect a merc. ???
i do no its not the attitude to take but i`m sick of tits trying to take the piss. had a bad day, can you tell.
Posted: Thu Jan 28, 2010 8:51 pm
by mickg
is it my eyes or is the joint the best part of 2" wide ?
Posted: Thu Jan 28, 2010 8:57 pm
by rab1
it is big and to be honest on 10 grand house (never mind 1.6mil) you would be a little pissed off as the client.
Posted: Thu Jan 28, 2010 9:09 pm
by GB_Groundworks
yeah that was my problem, they'd done a good job on the rest of the roof but young lad came back to finish ridge and did that, he did dye the mortar but not well enough and the cut was poor at best, ran from about an inch gap to 2 and half at bottom. they said they dont do a Y section but i said they could at least done a neater cut. they should have re done it by now, i pointed it to the boss and he said he'd get it fixed he seemed a little upset with it himself. was a 30k contract just to slate it and ridge tile it, battern and fabric that was all.
not been back since accident and doing my own jobs i'm back on there on monday i'll check and see if they sorted it.
rab1 we picked the best company most expensive of 3 quotes, but end of the days its the lads that have to work to the boss's standard.
Edited By GB_Groundworks on 1264713002
Posted: Thu Jan 28, 2010 9:27 pm
by GB_Groundworks
