[Greenbuilding] pervious bricks 3-5/8" x 8"
RT
ArchiLogic at yahoo.ca
Sat Feb 21 17:08:31 CST 2015
On Mon, 16 Feb 2015 20:35:27 -0500, Reuben Deumling <9watts at gmail.com>
wrote:
> I had used 1/4 crushed rock as the bedding and in between the bricks
> before. Having apparently forgotten what I'd used previously I ordered
> 1/4"->minus. As is often the case with rock, there's a lot of minus. Do
> you think this system may drain less well with the minus? Or does it not
> matter?
>
>
> On Wed, Jun 16, 2010 at 7:18 AM, Alan Abrams
> <alan at abramsdesignbuild.com> wrote:
>> see image number 8 in this case study
I've used limestone screenings in the 1/3 brick-length spaces left between
brick pavers set on a base of compacted 5/8" crushed stone and it's fine,
decades later.
However, in Reuben's case, I think that what will happen is that over
time, the fines will wash down and clog the interstitial spaces between
the 1/4" crushed stone and then two things could happen:
(1) The base will no longer drain ( the 1/4" stone being too small in the
first place IMO) and
(2) If the installation is in a climate where freeze/thaw occurs, the
trapped moisture will freeze and expand, almost certainly causing frost
heave.
But it was the lucky number "8" in the message above that attracted my
attention.
It made me think of "8 House" in Copenhagen by BIG. It's a huge mixed-use
residential building surrounded by pasture land. One can ride their bike
from ground level right up to the penthouse at the 10th level. I Googled
"8 House" and Wiki provided the following:
============ Copied material ==============
Referring to his second example of "architectural alchemy", Bjarke Ingels
explains his idea "that by mixing traditional ingredients, retail,
rowhouses and apartments in untraditional ways, you create added value, if
not gold." This is achieved by stacking the various ingredients of an
urban neighbourhood into layers. They are connected by a promenade and a
cycle track which reach up to the 10th floor, allowing businesses and
housing to co-exist.
Thomas Christoffersen, BIG's partner in charge of the project, described
the approach in more detail:
The apartments are placed at the top while the commercial programme
unfolds at the base of the building. As a result, the different horizontal
layers have achieved a quality of their own: the apartments benefit from
the view, sunlight and fresh air, while the office leases merge with life
on the street. This is emphasised by the shape of 8 House which is
literally hoisted up in the northeast corner and pushed down at the
southwest corner, allowing light and air to enter the southern courtyard.
============== End of copied material ===============
Images of the project may be viewed at BIG's website by going to the year
2009 in the "Chronological" listings and clicking on the "8" icon.
http://www.big.dk/#projects-8
--
=== * ===
Rob Tom ADT1
Kanata, Ontario, Canada
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