What are the advantages of interior wall formwork panel systems?
Publish Time: 2025-10-11
In modern construction projects, interior wall formwork panel systems serve as a core tool for concrete pouring, and their performance directly determines construction efficiency, project quality, and cost control. Traditional formwork materials (such as wood and ordinary steel) suffer from insufficient strength, poor durability, and low reuse rates. The emergence of zinc-aluminum-magnesium high-strength alloy steel formwork systematically addresses these challenges through innovations in materials science and engineering design. This article will comprehensively analyze the technical value and industry significance of this interior wall formwork panel system from four perspectives: product features, core advantages, application scenarios, and system composition.
1. High Strength and Durability: A Double Breakthrough in Bearing Capacity and Service Life
The core advantage of zinc-aluminum-magnesium high-strength alloy steel formwork lies in its revolutionary improvement in material properties. This formwork is extruded from alloy steel with a yield strength exceeding 700 MPa, 2.3 times that of ordinary Q235 steel. It can withstand lateral loads exceeding 60 kN/m², meeting the requirements of high-load-bearing applications such as shear walls in high-rise buildings and beams and columns in large-span factory buildings. For example, during the construction of a 30-story residential building, this formwork can stably support the pouring of 2.8-meter-high concrete walls, eliminating the risk of formwork collapse caused by deformation associated with traditional formwork.
It also offers outstanding corrosion resistance. A hot-dip galvanizing process forms a dense, 80-micron-thick zinc layer on the surface. Aluminum and magnesium are added to the zinc layer to form a eutectic structure, effectively inhibiting the penetration of corrosive media. Laboratory accelerated corrosion tests showed that in a salt spray environment (5% NaCl concentration), the corrosion rate of this formwork was only 0.03 mm/year, one-fifth that of ordinary carbon steel formwork. In actual engineering, after five years of use on a coastal project, the formwork surface retained over 95% of its original luster, requiring no additional anti-corrosion treatment, extending its service life to over three times that of traditional formwork.
2. Plasticity and Customization: Precise Implementation of Complex Structures
The diversification of architectural design places higher demands on formwork adaptability. Zinc-aluminum-magnesium high-strength alloy steel formwork, through cold-bending, can be bent to a radius of ≥3 times the plate thickness, meeting the construction requirements of special-shaped structures such as circular, curved, and hyperbolic surfaces. For example, in a cultural center project, the formwork was customized into curved panels with a radius of 2.5 meters for casting the dome structure. The resulting concrete surface flatness tolerance was ≤1.5mm, meeting the standard for exposed concrete.
In addition, the formwork's modular design allows for rapid assembly. Standard panels measure 1.2m x 2.4m, and specialized connectors allow for arbitrary combinations, adapting to diverse spaces from residential to commercial complexes. Using this system in a super-high-rise project, formwork installation efficiency increased by 40%, shortening the single-story construction cycle to just three days, a 25% reduction compared to traditional wooden formwork solutions.
3. Economic and Environmental Performance: Full Lifecycle Cost Optimization
The high reusability of zinc-aluminum-magnesium high-strength alloy steel formwork is the core of its economical performance. Field tests have shown that under standard operating conditions, this formwork can be recycled over 300 times, at a single-use cost of only one-eighth that of wooden formwork. For a project with a construction area of 100,000 square meters, adopting this system can reduce formwork procurement costs by approximately 1.2 million yuan and reduce waste disposal costs by 30%.
In terms of environmental performance, the formwork material is 100% recyclable and can be remelted into alloy steel after recycling, creating a closed-loop resource utilization loop. The production process utilizes a low-energy electric furnace process, resulting in a 20% reduction in carbon emissions per unit product compared to traditional steel formwork, meeting LEED certification requirements. In a green building demonstration project, this system helped the project achieve a two-star Green Building certification, reducing carbon emissions by 1,500 tons of CO₂ equivalent.
4. Construction Convenience and Safety: A Double Guarantee of Efficiency and Quality
The formwork system's independent single-support early-removal system is key to its construction efficiency. Components such as diagonal braces are constructed from high-strength steel pipes, and a quick-locking mechanism allows single-person operation. Installation of a single formwork unit takes only two minutes, 60% faster than traditional bolted connections. This early-removal design allows for partial removal of supports once concrete strength reaches 50% of the design value, accelerating formwork turnover. In one project, this technology increased formwork turnover to eight per floor.
In terms of safety, the 1.5mm thick formwork panels are designed to balance rigidity and lightness (single panel weighs ≤ 45kg), reducing the risks of working at height. The support system, optimized through finite element analysis, maintains stability even in 2m cantilever structures. After application on a bridge project, no formwork overturning incidents occurred, resulting in a 35% improvement in construction safety scores.
5. Systematic Design: Comprehensive Upgrade from Panels to Supports
The advantages of the interior wall formwork panel system stem from its integrated design concept. The formwork panels utilize a zinc-aluminum-magnesium alloy steel base with iron added to enhance tensile strength. The surface is shot-blasted and coated with a nano-anti-corrosion coating, resulting in a stable friction coefficient of 0.4-0.5, ensuring strong adhesion to concrete. The support system includes adjustable top supports, horizontal rods, and diagonal braces. Dynamic load-bearing is achieved through mechanical equilibrium calculations, maintaining deflection of ≤3mm even in a 12m span factory building.
In terms of system compatibility, the formwork can be used in conjunction with aluminum and plastic formwork to meet the needs of different construction phases. A complex project used steel formwork for basement construction and aluminum formwork for the above-ground portion, achieving seamless integration through unified connection interfaces and reducing overall costs by 18%.
Expanding Application Areas: Covering all scenarios from high-rise buildings to special-shaped structures
The adaptability of this formwork system has been validated in multiple benchmark projects:
High-rise Buildings: In a 68-story super-high-rise project in Shenzhen, the formwork withstood concrete lateral pressures of up to 85kN/m², and the vertical deviation of the wall after pouring was ≤2mm, earning it the "Lu Ban Award" for Quality Projects.
Long-Span Structures: A logistics warehouse in Hangzhou used this system to support 18m span beams, achieving 12 formwork turnovers and saving 45 days compared to traditional solutions.
Special-Shaped Structures: A theater project in Chengdu used customized curved formwork to achieve a single-step construction of its hyperbolic roof, eliminating secondary plastering steps and reducing overall costs by 22%.
The zinc-aluminum-magnesium high-strength alloy steel formwork panel system, through material innovation and system optimization, has redefined the technical standards for interior wall construction. Its high strength, corrosion resistance, and customizability not only improve project quality and construction efficiency, but also promote the green transformation of the construction industry. With the development of prefabricated buildings and intelligent construction, this system will further integrate digital technologies (such as BIM modeling and IoT monitoring) to achieve full lifecycle management of formwork. It is foreseeable that this innovative product will become a mainstream choice in the future construction formwork market, injecting strong impetus into the industry's sustainable development.
