What are the key requirements for rock wool boards in civil construction? Dacheng Xiangdong Insulation Refractory Material Factory - Contact: 13473696600 / 15731614448
In modern civil construction, especially in high-rise buildings, rock wool boards are widely used as insulation materials due to their excellent thermal performance and fire resistance. When selecting rock wool boards for such applications, it is crucial to focus on key technical indicators such as compressive strength, tensile strength, and water absorption.
For optimal performance, three-dimensional rock wool boards are considered ideal because of their superior mechanical properties and low water absorption. However, the production process for these boards is more complex, leading to higher costs that make them less practical for large-scale projects.
Considering cost-effectiveness, pendulum-type rock wool boards offer a balanced solution with good performance at a more affordable price. These boards are currently the most commonly used option in many construction projects.
Below is a detailed comparison of the technical specifications for different types of rock wool boards:
**Table 1: Technical Performance Index of Rock Wool Boards**
| **Project** | **Rock Wool (Pendulum)** | **Three-Dimensional Rock Wool** |
|-------------|--------------------------|--------------------------------|
| Density (kg/m³) | ≥150 | ≥150 |
| Density Tolerance (%) | ±15 | ±10 |
| Average Fiber Diameter (μm) | ≤7 | ≤7 |
| Thermal Conductivity (W/(m·K)) | 10°C – ≤0.036 | 10°C – ≤0.036 |
| 50°C – ≤0.039 | 50°C – ≤0.039 | |
| 70°C – ≤0.044 | 70°C – ≤0.041 | |
| Slag Content (>0.25 mm) (%) | ≤12.0 | ≤6.0 |
| Volume Moisture Absorption (%) | ≤5 | ≤1.0 |
| Volume Water Absorption (Full Immersion) (%) | - | ≤4.0 |
| Water Repellency Rate (%) | ≥98 | ≥98 |
| Thermal Load Shrinkage Temperature (°C) | ≥600 | ≥650 |
| Organic Content (%) | ≤4.0 | 
As shown in the table, each type of rock wool board has its own advantages and limitations. The choice depends on the specific needs of the project, including budget, performance requirements, and environmental conditions. For most standard applications, pendulum rock wool boards provide an excellent balance between cost and quality.
As shown in the table, each type of rock wool board has its own advantages and limitations. The choice depends on the specific needs of the project, including budget, performance requirements, and environmental conditions. For most standard applications, pendulum rock wool boards provide an excellent balance between cost and quality.Beverage Service Glassware
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