ENVEL® UHPC MATERIAL PROPERTIES & PErformance
Ultra High Performance Concrete (UHPC) Facade Panel Systems
Envel UHPC panel systems are engineered using Ultra High Performance Concrete (UHPC), a next-generaton cementitious material designed for architectural facades, rainscreen systems, and building envelopes.
Backed by over 20 years of research and development, UHPC represents a significant advancement in concrete technology. It’s ultra dense matrix delivers exceptionally low porosity and permeability, resulting in superior:
- Compressive strength
- Durability in extreme environments
- Long-term Performance stability
- Enhanced ductility and resilience
These material properties make Envel UHPC panels and ideal solution for architects seeking durable and design-flexible facade systems.
Key Benefits of Envel® UHPC Panels
Envel UHPC panels provide a high-performance alternative to traditional facade materials, combining strength with design versitility.
Durability & Resistance
- Resistance to abrasion, impact, and chemicals
- Excellent performance in freeze-thaw cycles
- High resistance to carbonation and chloride penetration
- Long-term weathering and environmental durability.
Design Flexibility
- Highly moldable for custom textures and patterns
- Supports complex geometries and thin profiles
- Enables lightweight panel systems without sacrificing strength
- Ideal for architectural precase and rainscreen applications
Surface Quality
- Refined finishes with consistent colre and texture control
- Suitable for custom facade designs and architectural elements
Performance of UHPC in Architectural Facade Applications
The perfomance of Ultra High Performance Concrete facade panels continues to be validated though extensive testing and real-world application. Envel UHPC panels are engineered to meet the evolving demands of modern architecture, including:
- High structural integrity with reduced material thickness
- Improved installation efficiency in unitized wall systems
- Long lifecycle performance with minimal maintenance
Our team remains aligned with the latest industry research, standards, and innovations to ensure Envel UHPC panel systems consitently meet or exceed performance expecatitions.
Testing & Certification of Envel® UHPC Panels
Envel UHPC panels have undergone rigorous independent testing to verify their material properties, strength, and durability. Testing has ben conducted in accordance with recognized ASTM standards by third-party laboratories including CTLGroup and Intertek.
UHPC Material Properties & Testing Results
Standard | Description | Performance |
ASTM C39 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 18,000 psi |
ASTM C496 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 2,100 psi |
ASTM C293 | Standard Test Method for Flexural Strength of Concrete (3 point loading) | 1,700 psi |
ASTM C642 | Standard Test Method for Density, Absorption, and Voids in Hardened Concrete | 4.60% |
ASTM C418 | Standard Test Method for Abrasion Resistance of Concrete by Sandblasting | Abrasion Coeff. Loss .21 cm3/cm2 |
ASTM C531 | Standard Test Method for Linear Shrinkage and Coeff. Of Thermal Expansion | 5.71E-06 |
ASTM C666 | Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing (301 cycles) | Length Change% /.020 Mass Change% |
ASTM C1185 | Section 11 Water Tightness 1/2” Thick Panel | No Water Droplets Present |
ASTM E84 | Standard Test Method for Surface Burning | Flame Spread 0 Smoke Dev. 0 |
ASTM E488 | Freeze Thaw Conditioned Samples / Tensile & Shear Evaluation. 1/2” Thick Panel, 13mm Keil Anchor | Tensile 390# / Shear 800# |
ASTM E330 | Structural Wall Performance Test | Greater than 90 psf |
ASTM 501.6 | Seismic Performance Test | Pass |
ASTM E136 | Standard Method for Behavior of Materials in a Vertical Tube Furnace | Pass |
Envel Testing
and Standards
Standard | Description | Performance |
ASTM C39 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 18,000 psi |
ASTM C496 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 2,100 psi |
ASTM C293 | Standard Test Method for Flexural Strength of Concrete (3 point loading) | 1,700 psi |
ASTM C642 | Standard Test Method for Density, Absorption, and Voids in Hardened Concrete | 4.60% |
ASTM C418 | Standard Test Method for Abrasion Resistance of Concrete by Sandblasting | Abrasion Coeff. Loss .21 cm3/cm2 |
ASTM C531 | Standard Test Method for Linear Shrinkage and Coeff. Of Thermal Expansion | 5.71E-06 |
ASTM C666 | Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing (301 cycles) | Length Change% /.020 Mass Change% |
ASTM C1185 | Section 11 Water Tightness 1/2” Thick Panel | No Water Droplets Present |
ASTM E84 | Standard Test Method for Surface Burning | Flame Spread 0 Smoke Dev. 0 |
ASTM E488 | Freeze Thaw Conditioned Samples / Tensile & Shear Evaluation. 1/2” Thick Panel, 13mm Keil Anchor | Tensile 390# / Shear 800# |
ASTM E330 | Structural Wall Performance Test | Greater than 90 psf |
ASTM 501.6 | Seismic Performance Test | Pass |
ASTM E136 | Standard Method for Behavior of Materials in a Vertical Tube Furnace | Pass |
Standard | Description | Performance |
ASTM C39 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 18,000 psi |
ASTM C496 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 2,100 psi |
ASTM C293 | Standard Test Method for Flexural Strength of Concrete (3 point loading) | 1,700 psi |
ASTM C642 | Standard Test Method for Density, Absorption, and Voids in Hardened Concrete | 4.60% |
ASTM C418 | Standard Test Method for Abrasion Resistance of Concrete by Sandblasting | Abrasion Coeff. Loss .21 cm3/cm2 |
ASTM C531 | Standard Test Method for Linear Shrinkage and Coeff. Of Thermal Expansion | 5.71E-06 |
ASTM C666 | Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing (301 cycles) | Length Change% /.020 Mass Change% |
ASTM C1185 | Section 11 Water Tightness 1/2” Thick Panel | No Water Droplets Present |
ASTM E84 | Standard Test Method for Surface Burning | Flame Spread 0 Smoke Dev. 0 |
ASTM E488 | Freeze Thaw Conditioned Samples / Tensile & Shear Evaluation. 1/2” Thick Panel, 13mm Keil Anchor | Tensile 390# / Shear 800# |
ASTM E330 | Structural Wall Performance Test | Greater than 90 psf |
ASTM 501.6 | Seismic Performance Test | Pass |
ASTM E136 | Standard Method for Behavior of Materials in a Vertical Tube Furnace | Pass |
Envel Testing and Standards
Standard | Description | Performance |
ASTM C39 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 18,000 psi |
ASTM C496 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 2,100 psi |
ASTM C293 | Standard Test Method for Flexural Strength of Concrete (3 point loading) | 1,700 psi |
ASTM C642 | Standard Test Method for Density, Absorption, and Voids in Hardened Concrete | 4.60% |
ASTM C418 | Standard Test Method for Abrasion Resistance of Concrete by Sandblasting | Abrasion Coeff. Loss .21 cm3/cm2 |
ASTM C531 | Standard Test Method for Linear Shrinkage and Coeff. Of Thermal Expansion | 5.71E-06 |
ASTM C666 | Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing (301 cycles) | Length Change% /.020 Mass Change% |
ASTM C1185 | Section 11 Water Tightness 1/2” Thick Panel | No Water Droplets Present |
ASTM E84 | Standard Test Method for Surface Burning | Flame Spread 0 Smoke Dev. 0 |
ASTM E488 | Freeze Thaw Conditioned Samples / Tensile & Shear Evaluation. 1/2” Thick Panel, 13mm Keil Anchor | Tensile 390# / Shear 800# |
ASTM E330 | Structural Wall Performance Test | Greater than 90 psf |
ASTM 501.6 | Seismic Performance Test | Pass |
ASTM E136 | Standard Method for Behavior of Materials in a Vertical Tube Furnace | Pass |
Envel Testing and Standards
Standard | Description | Performance |
ASTM C39 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 18,000 psi |
ASTM C496 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 2,100 psi |
ASTM C293 | Standard Test Method for Flexural Strength of Concrete (3 point loading) | 1,700 psi |
ASTM C642 | Standard Test Method for Density, Absorption, and Voids in Hardened Concrete | 4.60% |
ASTM C418 | Standard Test Method for Abrasion Resistance of Concrete by Sandblasting | Abrasion Coeff. Loss .21 cm3/cm2 |
ASTM C531 | Standard Test Method for Linear Shrinkage and Coeff. Of Thermal Expansion | 5.71E-06 |
ASTM C666 | Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing (301 cycles) | Length Change% /.020 Mass Change% |
ASTM C1185 | Section 11 Water Tightness 1/2” Thick Panel | No Water Droplets Present |
ASTM E84 | Standard Test Method for Surface Burning | Flame Spread 0 Smoke Dev. 0 |
ASTM E488 | Freeze Thaw Conditioned Samples / Tensile & Shear Evaluation. 1/2” Thick Panel, 13mm Keil Anchor | Tensile 390# / Shear 800# |
ASTM E330 | Structural Wall Performance Test | Greater than 90 psf |
ASTM 501.6 | Seismic Performance Test | Pass |
ASTM E136 | Standard Method for Behavior of Materials in a Vertical Tube Furnace | Pass |
Standard | Description | Performance |
ASTM C39 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 18,000 psi |
ASTM C496 | Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens | 2,100 psi |
ASTM C293 | Standard Test Method for Flexural Strength of Concrete (3 point loading) | 1,700 psi |
ASTM C642 | Standard Test Method for Density, Absorption, and Voids in Hardened Concrete | 4.60% |
ASTM C418 | Standard Test Method for Abrasion Resistance of Concrete by Sandblasting | Abrasion Coeff. Loss .21 cm3/cm2 |
ASTM C531 | Standard Test Method for Linear Shrinkage and Coeff. Of Thermal Expansion | 5.71E-06 |
ASTM C666 | Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing (301 cycles) | Length Change% /.020 Mass Change% |
ASTM C1185 | Section 11 Water Tightness 1/2” Thick Panel | No Water Droplets Present |
ASTM E84 | Standard Test Method for Surface Burning | Flame Spread 0 Smoke Dev. 0 |
ASTM E488 | Freeze Thaw Conditioned Samples / Tensile & Shear Evaluation. 1/2” Thick Panel, 13mm Keil Anchor | Tensile 390# / Shear 800# |
ASTM E330 | Structural Wall Performance Test | Greater than 90 psf |
ASTM 501.6 | Seismic Performance Test | Pass |
ASTM E136 | Standard Method for Behavior of Materials in a Vertical Tube Furnace | Pass |
Envel UHPC Panel Testing
and Standards
