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EPS cement sandwich panels are a popular choice in modern construction. The two outer cement - based facings are formulated to resist weathering and mechanical stress. The EPS foam in - between is a lightweight, closed - cell material. This combination results in a panel that is both light and strong. During production, the cement slurry is carefully applied to both sides of the pre - formed EPS board, followed by curing to enhance the bond. The surface of these panels can be smooth or textured. With a natural gray - white color from the cement, they can also be pigmented. They meet various national and industry standards regarding strength, insulation, and fire resistance.
The panel is typically composed of high-quality Portland cement, fine aggregates, additives, and a thick layer of EPS. The two cement panels on the surface are firmly bonded to the EPS core, forming a stable and integral structure. This structure gives the panel good mechanical properties and resistance to external forces.
Residential Buildings
In homes, EPS cement sandwich panels are used for exterior walls, providing excellent thermal insulation. This helps in reducing heating and cooling costs throughout the year. They are also used for interior partitions, creating separate living spaces while enhancing soundproofing. For example, in multi - storey apartment buildings, these panels can be used to construct party walls between units, minimizing noise transfer.
In attic conversions, the panels are ideal for roofing. Their lightweight nature reduces the load on the existing structure, and the insulation properties keep the converted space warm in winter and cool in summer.
Commercial Buildings
Office buildings often use EPS cement sandwich panels for curtain walls. The panels' aesthetic appeal, combined with their energy - saving features, makes them a popular choice. They can be customized with different finishes to match the building's design concept.
In shopping malls, these panels are used for internal partitions to divide different retail areas. Their fire - resistance properties add an extra layer of safety in crowded commercial spaces.
Industrial Buildings
Factories and warehouses benefit from EPS cement sandwich panels for their large - scale wall and roof construction. The panels' high strength - to - weight ratio allows for the creation of large - span structures without the need for excessive support. Their durability also withstands the harsh industrial environment, including exposure to machinery vibrations and potential chemical splashes.
| Item | Parameter and Index | ||||||
| 60mm | 75mm | 90mm | 100mm | 120mm | 150mm | ||
| 1 | Anti-impact capacity/times | ≥5 | ≥5 | ≥5 | ≥5 | ≥5 | ≥5 |
| 2 | Anti-bending damage load/times over deadweight | ≥3.0 | ≥3.0 | ≥3.0 | ≥3.0 | ≥5.0 | ≥5.0 |
| 3 | Compressive strength/Mpa | ≥3.5 | ≥3.5 | ≥3.5 | ≥3.5 | ≥3.5 | ≥3.5 |
| 4 | Softening coefficient | ≥0.8 | ≥0.8 | ≥0.8 | ≥0.8 | ≥0.8 | ≥0.8 |
| 5 | Surface density(kg/m2) | ≤70 | ≤70 | ≤90 | ≤90 | ≤110 | ≤110 |
| 6 | Moisture rate(%) | ≤10 | ≤10 | ≤10 | ≤10 | ≤8 | ≤8 |
| 7 | Dring shrinkage value(mm/m) | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 |
| 8 | Hang force(N) | ≥1000 | ≥1000 | ≥1000 | ≥1000 | ≥1000 | ≥1000 |
| 9 | Sound insulation capacity in the air(dB) | ≥35 | ≥35 | ≥40 | ≥40 | ≥45 | ≥50 |
| 10 | Fire endurance(h) | ≥1.5 | ≥1.5 | ≥2.5 | ≥2.5 | ≥3.0 | ≥4.5 |
| 11 | Heat transfer coefficient(w/m2.k) | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 |
| 12 | Inner radiation index | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 |
| 13 | Outer radiation index | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 |
| 14 | Frost resistance(shall show no visible cracks and surface without change) | _ | _ | shall show no visible cracks and surface without change | |||
| 15 | The combustion properties(A1 or A2) | _ | _ | A1 or A2 | |||
Installation Advantages
These panels are easy to install, which can greatly shorten the construction period. They can be directly installed on the building frame through simple connection methods such as bolts and slots, reducing the complexity of the construction process and improving construction efficiency.
Versatility
EPS cement sandwich panels can be widely used in various building applications, such as exterior walls, interior partitions, roofs, and floors. They can also be used in the construction of industrial plants, warehouses, and temporary buildings, showing strong versatility.
Environmental Friendliness
EPS is a recyclable material, and the production process of EPS cement sandwich panels is relatively environmentally friendly. They have little impact on the environment during use and can meet the requirements of sustainable development in the construction industry.
Cost-Effectiveness
Considering their comprehensive performance and service life, EPS cement sandwich panels have high cost-effectiveness. Although the initial purchase cost may be slightly higher than some traditional building materials, in the long run, their energy-saving and maintenance cost advantages can bring considerable economic benefits.
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