Icon Composite Wall Panels

Icon Composite Wall Panels

Icon Composite Wall Panels

Example Specification Edits

This document is intended to assist designers and specifiers in developing specifications incorporating composite wall panel design using the Icon composite wall panel system. Suggested edits are provided below. Commentary intended for the user, not to be included in the specification, appears as italicized text.

The example sections below are provided in standard 3-part CSI specification format.

For further assistance or for special applications, please contact IconX, LLC for guidance.

It is recommended that when copying these sections into existing specifications, the user “Paste Special” using either “Merge Formatting” or “Text Only” to prevent unintended formatting changes.

PART 1 - GENERAL

1.1RELATED DOCUMENTS<NO CHANGES>

1.2SUMMARY

  1. This Section includes the following wall panels:
  2. Structurally composite, insulated, <load bearing, non-load bearing>panels.

1.3DEFINITIONS

  1. Structurally Composite System: Wall panel system in whichwythe connectors are designed to transfer forces resulting from longitudinal bending stresses, forcing both concrete wythes to act together. Composite panels are comprised of roughly equal wythe thicknesses with similar reinforcing to maintain balanced section properties.

1.4REFERENCES<NO CHANGES>

1.5SUBMITTALS

  1. Shop Drawings:
  2. Provide detailed panel shop drawings indicating panel locations, connection details, form dimensions, openings, reveals, inserts, steel embedments, and composite wythe connectors. Shop drawings shall provide sufficient detail to allow insulation sheets to be pre-drilled for connector installation and coordinated placement within the wall panel.
  3. Shop drawings for any inserts or embedded itemsshall be submitted to wall panel producer/designer for coordination with wythe connector placement.
  1. Engineering:
  2. Design of wall panels shall be performed by a Professional Engineer licensed in the state of jurisdiction for the project. Submit complete design calculations for concrete wall panels, including design loads and lifting and handling stresses.
  3. If solid sections are required by design, care shall be taken to avoid rigid force transfer between wythes.
  4. Composite connectors shall be distributed throughout the panel as required by design calculations, and shall include a minimum of one connector per 8 square feet of wall area.

1.6QUALITY ASSURANCE<NO CHANGES>

PART 2 - PRODUCTS

2.1CONCRETE MATERIALS<NO CHANGES>

2.2REINFORCING AND ACCESSORIES<NO CHANGES>

2.3CONCRETE CURING MATERIALS<NO CHANGES>

2.4SANDWICH PANEL INSULATION SYSTEMS

  1. Performance requirements:
  2. Insulated concrete panels shall be constructed for the following criteria:
  3. Minimum thermal value of R-value, based on code referencewith less than 1% reduction due to penetrations or connections.
  4. Maintain continuous edge-to-edge insulation.
  5. Insulation materials:

<ANY OF THESE INSULATION CHOICES ARE ACCEPTABLE FOR USE WITH ICON CONNECTORS. EDIT AS REQUIRED BASED ON INSULATION PERFORMANCE REQUIREMENTS FOR PROJECT.>

  1. Expanded polystyrene (EPS) rigid board insulation, Type I or Type IX, meeting ASTM C578.
  2. Type I: Compressive strength: 10psi minimum at 10% deformation, per ASTM D1621.
  3. Type IX: Compressive strength: 25psi minimum at 10% deformation, per ASTM D1621.
  4. Extruded polystyrene (XPS) rigid board insulation, Type IV, meeting ASTM C578.
  5. Compressive strength: 25psi minimum at 10% deformation, per ASTM D1621.
  6. Polyisocyanurate rigid board insulation, Type I, meeting ASTM C1289.
  7. Compressive strength: 25psi minimum at 10% deformation, per ASTM D1621.
  8. Boards shall be compatible with concrete wall panel construction, faced both sides.
  9. Roughening or perforation of the insulation surface is not required for the ICON Shear Connector system.
  1. Wythe Connectors:
  2. Manufacturers:
  3. ICON Shear Connector, supplied by IconX, LLC, 5525 Kaw Drive, Kansas City, KS 66102 (1-844-274-4366).
  4. Physical properties:
  5. Non-conductive, non-corrosive, compression molded, glass-fiber reinforced epoxy resin sheet molded compound designed for manufacture of shear connectors.
  6. Foam dams shall accompany the connectors to prevent thermal bridging from concrete flowing through the connector hole.
  7. Mechanical properties:
  8. Connectors shall be capable of transferring shear and tensile forces between concrete wythes, as required to resolve the design forces.
  9. Maximum thermal conductivity of 0.173Btu / (ft.h.oF) [SI: 0.30 W / m.K]

2.5RELATED MATERIALS<NO CHANGES>

2.6CONCRETE MIXES<NO CHANGES>

PART 3 - EXECUTION

3.1SANDWICH PANEL CASTING

  1. Installation:
  2. Manufacturer and Product: ICON Shear Connector, supplied by IconX, LLC, 5525 Kaw Drive, Kansas City, KS 66102 (1-844-274-4366).
  3. Drill holes in insulation sheets to match connector layout in panel shop drawings. Connectors shall be placed within +/- 6 inches of detailed location, and no closer than 6 inches to any panel or opening edge.
  4. Connectors shall be folded, inserted into insulation, then fully opened, locking the heels against the insulation. Connectors shall be oriented per the shop drawings.
  5. Install insulation sheets (with connectors pre-installed) over entire panel area immediately after placement, vibration, and screeding of first (bottom) concrete wythe. Consolidate concrete around connectors by “walking in” insulation, and by light mechanical vibration. Minor adjustments can be made by rotating connectors in the holes for proper final alignment.
  6. It is critical that connector installation occur prior to initial set of bottom concrete wythe.
  7. Allow first (bottom) concrete wythe to reach initial set prior to placement of reinforcing and concrete for the second (upper) wythe.

3.2PROTECTION AND CURING

  1. Protect panels from rain or snow after insulation layer is installed, and before concrete reaches final set.

3.3EMBEDMENTS AND INSERTS

  1. Where embedments (plates, lifting devices, etc.) on the back (upper) wythe are longer than the wythe thickness, recess insulation to allow for full embedment. Size of recess shall be designed for development of full shear cone surrounding embedment and shall be noted on the shop drawings.
  2. Where embedments on the face (lower) wythe are longer than the wythe thickness, refer to Icon Design Manual or contact IconX, LLC for recommended details.

3.4LIFTING AND HANDLING<NO CHANGES>

3.5ERECTION<NO CHANGES>

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