Rock Wool Compressive Strength Testing Machine 50KpaThermal Insulation Material Load Deformation Testing

External Wall Rock Wool Board Pressure Testing Machine 200*200 Thermal Insulation Rock Wool Product Pressure Strength Testing Equipment

GB/T 25975 - 2018 "Rock Wool Products for External Thermal Insulation of Building Walls"

1. Product Introduction

The rock wool pressure testing machine is mainly used for compressive strength testing of composite insulation materials such as rock wool products, extruded boards, polystyrene boards, and insulation boards. This machine adopts a servo motor, computer control, real-time display of test curves, automatic collection of experimental results, and can perform bending, peeling, shear, and tear tests with other fixtures. Specifically designed for the tensile and compressive strength of mineral wool and rock wool products, it features user-friendly software and fixtures, making it an ideal testing equipment for industrial and mining enterprises, technical supervision, commodity inspection arbitration, and other departments.

Execution Standards:

GB/T 25975 - 2018 "Rock Wool Products for External Thermal Insulation of Building Walls"

GB/T13480-2014 "Determination of Compressive Properties of Thermal Insulation Products for Buildings"

2. Technical Parameters:

Main Technical Parameters WDW-10KN WDW-20KN WDW-50KN

Structure Type Gantry

Maximum Test Force 10KN 20KN 50KN

Measurement Range 2%—100% of Maximum Test Force

Test Force Accuracy Better than ±1% of Indicated Value

Deformation Accuracy Better than ±1% of Indicated Value

Accuracy Grade Level 1

Displacement Measurement Resolution 0.01mm

Speed Adjustment Range 1-500mm/min

Test Stroke 600mm (Customizable Based on Customer Requirements)

Power Supply 220V 50Hz

Weight Approximately 500Kg

3. Testing Process

Sample Preparation

Size Requirements: Sample size is (200±1)mm × (200±1)mm. If the width of the rock wool strip is less than 200mm, use a square with the width of the rock wool strip as the side length, and the thickness is the original thickness of the sample.

Quantity: Prepare 5 samples.

Environmental Requirements: Condition in an environment of (23±5)℃ for at least 24 hours.

Testing Steps

1. Measure Dimensions: Measure sample dimensions according to ISO29768.

2. Place Sample: Position the sample at the center of the two compression plates of the testing machine.

3. Pre-loading: Apply a pressure of (250±10)Pa. If specified by the relevant product standard and the sample shows significant deformation under 250Pa pre-pressure, apply a 50Pa pre-pressure. In this case, thickness d must be measured under the same pressure.

4. Compression Operation: Compress the sample at a constant speed of 0.1d/min (within ±25%, where d is the sample thickness in mm). Continue compression until the sample yields to obtain the compressive strength value. If no yield occurs at 10% deformation, record the compressive stress at that point.

5. Data Recording: Plot the load-displacement curve.