COMPARE A|UHPC TO UHPC
TAKTL’s Architectural Ultra High Performance Concrete shares all of the defining strength and performance characteristics of any UHPC—exceptional compressive strength, very low water absorption, and excellent long-term strength retention. TAKTL’s formulation also has clear advantages related specifically to architectural applications:
PROPRIETARY FORMULATION | LOCAL RAW MATERIALS
Other UHPC on the market today is dominated by a “pre-mix” from a very limited number of companies (primarily European) serving the civil construction market with a focus on compressive strength. They historically rely on 2%–4% steel fibers and/or high percentages of glass fiber or PVA fibers for strength. A|UHPC® uses a proprietary mix design developed by TAKTL with over 90% of the materials by weight sourced well within 500 miles of our manufacturing facility. TAKTL’s A|UHPC® formulation is optimized specifically for the aesthetic and performance demands of architectural applications, including significantly greater flexural strength, which is highly beneficial in a facade panel.
EXTREMELY LOW CRYSTALLINE SILICA
Most UHPC is formulated with quartz sand and contains more than 40% crystalline silica, a known carcinogen. TAKTL has been specifically formulated without using quartz sand and has extremely low crystalline silica content in the range of .03 – 0.633%.
TWO LAYERS OF GLASS MESH IN EVERY PANEL
TAKTL utilizes a continuous automated manufacturing line to cast UHPC in layers with alkali-resistant (AR) glass mesh. Although the layers of mesh are the most expensive component of our facade panels, we consider them essential for handling large panel sizes (5’x12’) while maintaining a thin profile (5/8”-3/4”) and eliminating the risk of shattering and catastrophic failure.
HIGHER FLEXURAL STRENGTH
UHPC has traditionally been designed around compressive strength. Facade panels are engineered around flexural strength. TAKTL has been specifically formulated to increase flexural strength through the combination of formulation design and the two layers of continuous mesh. TAKTL facade panels have flexural design values of 3,900 – 4,800 psi.
HIGHER ANCHOR PULLOUT STRENGTH
Another compelling advantage of the mesh layers is the high anchor pullout strength, resulting in wider spans between anchors and lower hardware and labor costs. A single 10mm stainless steel undercut anchor in a TAKTL panel provides design values of 520 lbs in tension and 890 lbs in shear. Higher flexural strength and higher anchor pullout mean significantly fewer attachment points resulting in fewer clips, reduced subframe, and less installation labor.
MORE CONSISTENT COLOR | BETTER SURFACE PERFORMANCE
Moderating color variation, reducing the potential for efflorescence, and producing colors that stand the test of time all rely on tightly controlling as many variables as possible throughout the process. We’ve invested in the automation, scale, physical plant and ongoing research to produce unrivaled surface performance.
LOWER CEMENT CONTENT
Our current formula, introduced in late 2017, reduced cement content by 19%, thereby reducing the potential for efflorescence, as well as lowering our carbon footprint.