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Posted: Sun Feb 15, 2009 5:58 pm
by cw76
hi all,
just wondering is there a max. slope you can put block paving on? I know with permeable paving its 1:20,as the water will just run over the joints of the pavement and not down between the joints as intended... but what about normal paving on a slope, before the "sliding" motion gets to great for the blocks to cope with...plus would it put alot of pressure on the block at the lowest part of the slops..and i suppose you'd have to have some amount of haunching for the kerbs with reinforcement in it....
Anyone any ideas?
and can someone clarify whats the difference between cross falls and longitudinal falls?
Thanks
Posted: Sun Feb 15, 2009 9:49 pm
by Pablo
It depends on the type of block you use and the application you use it for. As long as you use at least a pinkerb or similar then you will not have a problem. The blocks if installed correctly will not slide and they certainly won't crush etc at the lowest point. We have paved a 1:5 slope before for vehicle use and used a block with it's aggregate exposed by shotblasting for grip and it's not had any problems in 4 years. We used a liberal amount of joint stabiliser and then sealer and it worked well both for dirt and sand retention. I'm refusing to answer anymore questions until you change your font colour it's making me feel sick amd cross eyed.:p
Posted: Sun Feb 15, 2009 9:54 pm
by Pablo
Beer and whisky it's not my fault.:p
Posted: Mon Feb 16, 2009 9:33 am
by Tony McC
In theory, there is no maximum slope for block paving (or other modular paving). Have a look at some of the undercrofts beneath motorway bridges: they are sometimes paved with blocks of flags and can be 45° or more. I recall working on a reservoir scheme where the revetments were block paved at, IIRC, 60°.
As Pablo said before becoming distracted with the emoticons, you need a serious retainer, and it's sometimes worth using intermediate restraining courses to help 'spread the load'.
And I'm not sure where you got that figure of max 1:20 for CBPP. Anything more than that is less than ideal, but it will NOT prevent water find its way into the sub-base!
As for those emoticons, I've never been able to find the piece of code that controls their display. Some years ago I tried to play with them with the intention of introducing a new range, but couldn't figure out how it was controlled. I *do* know that when they don't work, if you enclose them within a pair of colons (:), they do seem to work.
If I ever get the time and two spare days, I'll have another go at the Noo Broo Cabin, which should (allegedly) resolve all these issues and cut down on the number of spammers targeting the site.
Posted: Mon Feb 16, 2009 6:01 pm
by DNgroundworks
Is that what them "japanese" and other posts were spam?
Stupid me thought is was a japanese person with a paving problem
Posted: Mon Feb 16, 2009 6:10 pm
by lutonlagerlout
can i just ask the OP cw76 ,what made you think that a green font would help your question?
jus' wonderin' like :;):
LLL
Posted: Mon Feb 16, 2009 7:03 pm
by msh paving
glad you asked that LLL 6am this morning it was hard going to read it, then 2 porn sites had to be exterminated as well 
Posted: Tue Feb 17, 2009 9:11 am
by Tony McC
We're experiencing a resurgence of activity from the spamtwats over the last fortnight. While the moderators, to whom I'm eternally grateful, do a superb job of deleting the offensive stuff as soon as it appears, behind the scenes, the system is being flooded with bogus applications from spurious email addresses, and I'm blocking around 20-30 accounts each day.
We've also seen a number of seemingly innocuous posts, just saying "hello" or whatever, but with no obvious paving or hard-landscaping relevance. These are, apparently, tracking posts that are used to determine whether a forum is being monitored by the software (ie: detecting words, images or phrases) or by yooman beans, who can detect 'intent'. That's why some of the posts to which replies have been made have also disappeared - to let the evildoers know that we rely on real people to keep order in The Brew Cabin.
It doesn't matter to me how often they post; I'm not paying what they ask. If I pay once, they'll be back for more, and they'll bring all their grubby little chums with them. 
Posted: Tue Feb 17, 2009 4:13 pm
by cw76
Sorry about the green font, to be honest I didn't even notice it untill you said it!!! and its annoying me now!!!! how do i change it to black?
I got the 1:20 fall from the Interpave Manuals.
We are looling at using 200x100x80mm Permable Paving on an access ramp up to a car park (max. 30 cars). I know we'll have to design baffels in the sub-base to stop the water in the sub-base from flooding down to the lowest point in the pavement (where it will discharge out though a flow control). I think i have that under control... but when I was trying to find the max slope for PP, 1:20 was all I could find, but I couldn't find any info on ordinary paving either... :rock: 
Posted: Tue Feb 17, 2009 6:32 pm
by Pablo
Told you no more answers until you change it.:(laugh:)
Posted: Tue Feb 17, 2009 6:57 pm
by msh paving
all the answers are in the main site, you need to take time and read it through,all you need to know is there
please change that colour before posting again,please don't expect people to strain there eyes reading it,we are here to help you as much as possible but consider there eyes 
Posted: Tue Feb 17, 2009 7:05 pm
by cw76
done!!!
Posted: Tue Feb 17, 2009 7:07 pm
by msh paving
:p 
