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High Concrete Group LLC has introduced ThinCastTM, the thinnest precast concrete rainscreen panel available on the market. Designed for use in commercial, institutional, retail, and low- to high-rise construction, this innovation provides architects with the natural beauty and character of concrete in lightweight panels that accomplish their rainscreen design goals.
Column covers conceal structural columns and may completely surround them on ground level. Typically one-story units, column covers extend between floors or spandrels. In thicknesses of 2" or greater, column covers are most often non-loadbearing. Reveals, articulation, decorative accents, mix design(s) available to meet design requirements.
Overview
Applications
Column covers are typically non-loadbearing, but may be adapted to support covers on floors above or adjacent spandrels.
Cost: $$-$$$$
Technical Overview
Connections
Connections are typically welded or bolted
Concrete
Mix: architectural face mix; structural back mix with EcoMix® (up to 50% supplementary cementitious materials recycled content, per design requirements)
Water-cement ratio: <.38
Strength: 7-9,000 psi
Color: per Architect requirements
Specifications:
Certification . . . . . . . . . . . . . . . . . PCI Factory Certification
Design. . . . . . . . . . . . . . . . . . . . . .ACI 318-95
Prestress strand . . . . . . . . . . . . . .ASTM A 416
Reinforcing steel. . . . . . . . . . . . . .ASTM A 615
Welded wire fabric . . . . . . . . . . . .ASTM A 185
Structural steel . . . . . . . . . . . . . . .ASTM A 36
Aggregate. . . . . . . . . . . . . . . . . . .ASTM C 33
Cement. . . . . . . . . . . . . . . . . . . . .ASTM C 150 Materials
Dimensional Tolerances:
Horizontal alignment:
Position of Weld Plates: ±1 in.
Options
Varying thicknesses – interior and exterior wythes are typically 1-3/4” thick. The exterior wythe can be thickened to accommodate architectural details.
Shapes – an assortment of architectural elements such as cornices, bullnoses and reveals can be cast into the concrete carefully and cost-efficiently.
Embedded finishes and veneers – stone, tile and thin brick can also be used as well as simulated limestone or granite.
Panel orientation – typical orientation will be horizontal; vertical orientation is possible.
Prefinished interior wythe – a steel-trowel treatment during manufacturing imparts a smooth, durable, surface ready for paint or wallcovering and is ideal for applications such as dormitories and apartments.
Grouted connection tubes – prefabricated plastic forms, fit into foundations and panels to facilitate connection (uat.highconcreteaccessories.com)
LEED
Potential precast point contributions to LEED 2009 certification:
Credit |
|
Potential Point Contributions |
Sustainable Sites |
|
|
SS Credit 5.1 |
Site Development, Protect or Restore Habitat |
1 |
Materials & Resources |
|
|
MR Credit 4.1 |
Recycled Content, 10% (post-consumer + pre-consumer) |
1 |
MR Credit 5.1 |
Regional Materials, 10% Extracted, Processed & Manufactured Region |
1 |
MR Credit 5.2 |
Regional Materials, 20% Extracted, Processed & Manufactured Region |
1 |
Indoor Environmental Quality |
|
|
EQc3.1 |
Construction Indoor Air Quality Management Plan: During Construction |
1 |
Innovation & Design Process |
|
|
ID Credit 1.1 |
Innovation in Design: Provide Specific Title |
1 |
ID Credit 2 |
LEED Accredited Professional |
1 |
LEED is a registered trademark of the US Green Building Council.
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High Concrete Group
125 Denver Road
Denver, PA 17517
Invitations to Bid: precastinfo@high.net|
©High Concrete Group 125 Denver Rd., Denver, PA 17517