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Topping required on precast plank?
- To: "Seaint" <seaint(--nospam--at)seaint.org>
- Subject: Topping required on precast plank?
- From: "Terry Triest" <tatriest(--nospam--at)hayeslarge.com>
- Date: Thu, 1 May 2003 11:30:08 -0400
Our client is requesting to
use a self-leveling material to essentially compensate for the incidental
cambering of the plank. They want to recover most of the 2" which
would be lost with the standard 2" topping.
Mostly, the plank is
supported by bearing walls (5 levels), but the central lobby is at the knuckle
of the angled wings and is steel framed. My concern arise
because the supporting HSS beams might need to be flush with the top
of plank because of the 10' floor to floor height. This imposes a
crack concern on either side of the beam.
Concern # 1 - I feel the
self-leveling material is inadequate for crack control at the
Concern # 2 - Can we use 1"
of ARDEX K-15 with some assurance that cracking can be
Concern # 3 - Has anyone
had problems with the topping adhering to the top flange of the beam in this
Terry Triest, EIT