V - it could be something in the nomenclature, but my best guess (and it's only that) is that the chapel has a really stiff concrete mix that the owner could install, by hand, in small increments each day. so, installation wise, it could have been similar to rammed earth, but, yes, zumthor refers to it as concrete.
here's a shot of it under construction:
and, it's so thick in the sections (in places), i can't imagine there's any possibility of it being true rammed earth:
It is essentially the same thing as what is called rammed earth in permitted construction in the US. Where true rammed earth has no lime or portland cement, and uses clay exclusively as the binder, rammed concrete omits the clay and uses only sand and gravel, with 8% or more portland cement. The materials are mixed with a small amount of water on the ground or in the bucket of a loader, and then this damp mix is put into the forms in 6" or so lifts which are then rammed with pneumatic tampers. The final material has properties similar to 1000 psi concrete.
The projects that David Easton has built in Northern California, as well Quentin Branch's work in Arizona for Bruder/Joy et. al all use portland as the binder. The color and character of the wall is lightened somewhat by the portland, but is mostly the result of the color of aggregate and mineral soils used.
what is rammed concrete? material that use for Bruder Klaus Field Chapel / Peter Zumthor
what is rammed concrete? the material that use for Bruder Klaus Field Chapel / Peter Zumthor
Is it mean rammed earth mixing with concrete?
Thank you
V - it could be something in the nomenclature, but my best guess (and it's only that) is that the chapel has a really stiff concrete mix that the owner could install, by hand, in small increments each day. so, installation wise, it could have been similar to rammed earth, but, yes, zumthor refers to it as concrete.
here's a shot of it under construction:
and, it's so thick in the sections (in places), i can't imagine there's any possibility of it being true rammed earth:
From A+U 2008:09 No.456, p.30:
mmmmm, 4 tons of molten lead.
It is essentially the same thing as what is called rammed earth in permitted construction in the US. Where true rammed earth has no lime or portland cement, and uses clay exclusively as the binder, rammed concrete omits the clay and uses only sand and gravel, with 8% or more portland cement. The materials are mixed with a small amount of water on the ground or in the bucket of a loader, and then this damp mix is put into the forms in 6" or so lifts which are then rammed with pneumatic tampers. The final material has properties similar to 1000 psi concrete.
The projects that David Easton has built in Northern California, as well Quentin Branch's work in Arizona for Bruder/Joy et. al all use portland as the binder. The color and character of the wall is lightened somewhat by the portland, but is mostly the result of the color of aggregate and mineral soils used.
Or walk across a carpet where infants are crawling.
Block this user
Are you sure you want to block this user and hide all related comments throughout the site?
Archinect
This is your first comment on Archinect. Your comment will be visible once approved.