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[SEAOC] RASTRA wall[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaoc(--nospam--at)seaoc.org
- Subject: [SEAOC] RASTRA wall
- From: smthengr(--nospam--at)sirius.com (Jeff Smith)
- Date: Sat, 10 Aug 1996 11:08:50 -0800
Does anyone have any experience with this type of wall assembly? I am looking at a new residence that the owner and architect are interested in the product. Two homes in the Oakland, CA area have been constructed using it. RASTRA wall is a wall assembly made from an exterior form of styrofoam that has a steel reinforced concrete 2000 psi grout matrix of vertical and horizontal round grouted spaces. Reinforcing is typically #3 at 15" oc each way. The walls are load bearing and they resist lateral loads and are not suggested for structures over 2 stories. I have seen an earlier German version where the styrofoam is interlocking and similar in shape to concrete masonry blocks. I have an undated research paper for tests performed by UC Irvine. I would think that shearwall boundary conditions would govern design. Jeff Smith ...
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