UHPC’s superior performance data and index
1、The high compactness and good working performance of UHPC make the surface that contacts with the template have a high degree of smoothness. The outside harmful medium is difficult to intrude into the UHPC, and the colorants and other components in the UHPC are not easily dissolved out. With this characteristic, UHPC can be used as the exterior decoration material of buildings, and the chromatic aberration is reduced to the minimum, which is more conducive to surface cleaning.
2、UHPC is a ultra-high strength cement-based material with high strength, high toughness and low porosity. Its basic preparation principle is that by increasing the fineness and activity of the component, without the use of coarse aggregate, the defects (pores and micro cracks) within the material are reduced to the least, so as to obtain ultra high strength and high durability.
3、Mechanical properties of UHPC
Property | Heat-treated Ductal® — FM and Ductal® — AF | Unheat-treated Ductal® — FO |
Apparent density | 2500kg/m³ | 2350kg/m³ |
Compressive strength | 150~180MPa | 100~140MPa |
Bending strength(4×4×16cm) | 30~40MPa | 15~20MPa |
Tensile strength | 8MPa | 5MPa |
Residual tensile strength | 8Mpa | 3MPa |
Young’s modulus of elasticity | 50Gpa | 45Gpa |
Poisson ratio | 0.2 | 0.2 |
Shrink | <10µm/m | <10µm/m |
Creep coefficient | 0.3 | 0.8 |
Coefficient of thermal expansion | 11.8µm/m/°C | 11.8µm/m/°C |
4、Resistance to acid attack. UHPCis exhibiting high resistance, even under severe conditions (the general concrete will be destroyed), and it’s resistance ability can make it be exposed to various erosion elements (such as calcium sulfate, sodium sulphate, acetic acid, ammonium sulphate, nitrate, sea water and distilled water).
5、UHPC is an Ultra High Performance Concrete (UHPC) which is developed from fine and high strength aggregate. The aggregate size combination has been optimized, so it is the lowest porosity concrete in the market. Because Ductal UHPC uses a specific combination of materials, it is suitable for the production of narrow and tiny components and these components have high durability (abrasive resistance, carbonation, chloride permeability and freezing-thawing resistance, etc.), which are far higher than the traditional concrete materials, such as at least 1000 times lower oxygen permeability. The hollowing out rate can be made to 50~70%.
6、The excellent performance of the material itself and the premixed pouring process make the product quality more stable and controllable, and it is not easy to crack.
7、Freeze-thaw test (300 cycles) 100% don’t change
•Ice salt denudation<0.0131b/M2, capillary porosity<1%
•HRT cycles 100%
•Abrasion resistance (relative volume loss index)1.7
•Oxygen permeation<10—9M2, total porosity3-6%
•Carbonization depth<0.02in
8、Way to install: both open installation and concealed installation are acceptable.
UHPC outdoor garden bench: Durable and Elegant Solutions for Modern Landscapes
Outdoor seating plays a critical role in shaping functional and inviting spaces in parks, gardens, plazas, and residential landscapes. The UHPC Outdoor Garden Bench represents a modern solution that combines strength, durability, and aesthetic versatility. Ultra-High Performance Concrete (UHPC) provides exceptional mechanical properties and weather resistance, ensuring benches maintain their structural integrity and visual appeal over time. With lightweight construction and customizable designs, UHPC benches are increasingly favored in contemporary landscape architecture and urban planning, delivering long-lasting, low-maintenance seating solutions suitable for a variety of outdoor environments.
Ultra-High Performance Concrete (UHPC) is a specialized concrete formulation known for its superior strength, durability, and longevity. Composed of high-strength cement, fine aggregates, silica fume, and chemical admixtures, UHPC can achieve compressive strengths exceeding 150 MPa. Its dense microstructure provides low permeability, high flexural strength, and outstanding resistance to environmental stressors such as freeze-thaw cycles, chemical corrosion, and abrasion. These properties make UHPC particularly suitable for outdoor benches that must withstand prolonged exposure to weather, heavy use, and occasional vandalism.
UHPC offers several advantages for outdoor furniture applications:
Durability: Resistant to environmental stressors including rain, snow, UV radiation, and pollutants.
Corrosion Resistance: Protects embedded reinforcement from moisture and chloride penetration.
Lightweight Design: Allows for larger or intricate benches without excessive structural load.
Low Maintenance: Requires minimal upkeep, reducing lifecycle costs.
Customizable Aesthetics: Supports textures, patterns, and finishes that enhance visual appeal.
The primary function of a garden bench is to provide comfortable seating while supporting various loads. UHPC benches can be designed in single or multiple-segment configurations, including cantilevered or slab-style benches. The material’s high compressive and flexural strength allows for slim profiles without compromising stability, offering both functional and visually appealing designs.
UHPC benches can be manufactured with smooth, polished, sandblasted, or textured surfaces. Designers can also incorporate patterned surfaces, integral pigments, or faux stone effects to complement surrounding landscaping elements. Perforated or sculptural designs are feasible, enabling benches to integrate decorative and functional elements, such as water drainage or ventilation in specific climates.
One of UHPC’s key advantages is its ability to produce lightweight components without sacrificing strength. This facilitates easier handling, transportation, and installation on-site. Modular bench designs allow for flexible arrangements in public spaces, enabling urban planners and landscape architects to adapt seating layouts to site-specific requirements.
For public comfort, UHPC garden benches can be designed with ergonomically contoured seats, backrests, and armrests. The material’s versatility allows smooth transitions between functional design elements and aesthetic features, ensuring both comfort and visual integration within the outdoor environment.
Urban parks and public plazas require durable and low-maintenance seating capable of withstanding heavy traffic and environmental exposure. UHPC benches deliver the structural performance needed for high-use areas while allowing for visually engaging designs that enhance the overall landscape.
For private gardens and residential landscapes, UHPC benches offer both functionality and aesthetics. Lightweight panels enable creative designs that blend seamlessly with garden pathways, patios, and decorative elements. Weather-resistant surfaces ensure the benches maintain their appearance with minimal maintenance.
Commercial properties, educational campuses, and cultural institutions benefit from UHPC benches due to their durability, safety, and long-term cost-effectiveness. They can be integrated into outdoor seating arrangements for courtyards, entrance areas, or communal spaces, providing sustainable and resilient furniture solutions.
UHPC’s resistance to salt corrosion, moisture, and temperature fluctuations makes it ideal for coastal or industrial areas. Outdoor benches in such environments maintain structural integrity and visual appeal even under harsh conditions, offering a long-lasting solution where traditional materials may fail.
UHPC benches are typically installed using mechanical anchors, integrated footings, or modular support systems. The lightweight yet robust construction allows for easier handling during installation, reducing labor requirements and construction time. Proper alignment and anchoring ensure long-term stability and safety for public use.
While UHPC is low-maintenance, periodic care ensures optimal performance and appearance:
Surface Cleaning: Use neutral pH cleaners and low-pressure water to remove dirt and debris. Avoid abrasive or acidic cleaners.
Inspection of Anchors and Supports: Check mechanical anchors and supports periodically to maintain stability.
Repair of Minor Surface Damage: Small chips or scratches can be repaired using UHPC patching compounds without compromising overall performance.
UHPC benches support sustainable design practices. Their long lifespan reduces the need for frequent replacement, lowering material consumption and waste generation. Additionally, UHPC can incorporate recycled aggregates or industrial by-products, further minimizing environmental impact. Its durability reduces maintenance requirements, resulting in decreased use of cleaning chemicals and energy for repairs.
Urban Park, Germany: UHPC garden benches with smooth and perforated designs enhanced seating areas while withstanding heavy public use.
Residential Landscape, Canada: Customized UHPC benches integrated with natural stone textures provided durable, visually appealing seating for private gardens.
Coastal Plaza, USA: Salt-resistant UHPC benches maintained structural integrity and aesthetic quality in harsh coastal conditions, demonstrating the material’s resilience.
These examples illustrate the versatility, durability, and aesthetic potential of UHPC benches in diverse outdoor settings.
UHPC Outdoor Garden Benches offer an innovative, durable, and aesthetically flexible solution for modern landscapes. By combining the exceptional mechanical properties of ultra-high-performance concrete with customizable design options, these benches provide long-term performance, low maintenance, and visual appeal. Lightweight construction simplifies installation and allows for larger or more intricate designs, making them suitable for public parks, residential gardens, commercial spaces, and harsh environmental conditions. As sustainable, resilient, and versatile outdoor seating solutions, UHPC garden benches are increasingly recognized as a preferred choice in contemporary landscape architecture and urban planning.
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