ASTM D4751 Geotextile Aperture Measurement Machine
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Web: standard-groups.com
Geotextiles are fabrics made primarily from synthetic fibers through processes such as needle punching and heat bonding. They possess excellent water permeability, high strength, and corrosion resistance, and can effectively separate, filter, and drain, making them widely used in various fields such as soil stabilization, drainage, and erosion control. Based on the materials used, geotextiles can be divided into two main categories: non-woven fabrics and woven fabrics.
Application
The equivalent pore diameter of geotextile and its related products was determined by dry screening method. The geotextile sample is used as the screen cloth, the standard particle material with known diameter is placed on the geotextile above the vibrating screen, and the sieve rate is calculated by weighing the standard particle material weight of ten industrial cloth, and the sample is replaced by the standard particle material with different diameters. The aperture distribution curve of the textile is drawn and the value of 090 is obtained.
Standard
GB/T14799-2005:Geotextiles and geotextile-related products - Determination of the effective opening size - Dry sieving method
ASTM D4751-2004:Standard Test Method for Determining Apparent Opening Size of a Geotextile
SL/T 235-7-2012:Specification for Test and Measurement of Geosynthetics (Chapter 7 or relevant section, if applicable)
Features
Adopts split type design to avoid damage to the control system caused by vibration during high-speed operation.
Using mechanical vibrating screen vibration, smooth and efficient;
Vibrating screen can carry out shaking and shaking two vibration modes, vibration frequency is stable;
Equipped with locking protection device, strengthen the stability of the fuselage;
It is equipped with an anti-static device to prevent glass beads from gathering on the surface of the sample due to electrostatic action;
+5 sets of sieve parallel sample test, energy saving and high efficiency;
Digital display time, vibration time can be set;
Easy to install, easy to operate.
Parameters
| Specification | Details |
|---|---|
| Inner diameter of the screen | 200mm |
| Screen material | Aluminum |
| Screen stack height | 400mm |
| Screen seat amplitude | 8mm |
| Vibration frequency 1 | 221/min |
| Vibration frequency 2 | 147/min |
| Turning radius | 12.5mm |
| Timer range | 0 to 99 minutes and 59 seconds |
| Power supply | AC 380V 50HZ |
| Dimensions - Host | 600x380x1000mm |
| Dimensions - Control box | 330x290x105mm |
| Weight | 130kg |
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