Effective equivalent pore size standard particle size of geotextile

Effective equivalent pore size standard particle size of geotextileFor geotextile aperture testing, this particle is made of spherical glass microspheres according to standard requirements, clean and free of impurities.

Effective equivalent pore size standard particle size of geotextileSpecifications

320#：0.045-0.063mm；

280#：0.063-0.071mm；

220#：0.071-0.09mm；

180#：0.09-0.125mm；

150#：0.125-0.18mm；

120#：0.18-0.25mm；

100#：0.25-0.28mm；

80#：0.28-0.355mm；

60#：0.355-0.5mm；

40#：0.5-0.71mm。

Standard particles for effective pore size of geotextile, method for determining effective pore size of geotextile

Geotextiles play a role in reinforcement, soft soil reinforcement, and permeable filtration in engineering. The characteristic pore size is an important physical indicator of geotextiles and a key design parameter that must be considered in the design of water conservancy, transportation, and other engineering projects.

A geotextile with a reasonable and effective aperture can maintain soil particle retention without reducing soil permeability during engineering use. At present, there are many methods for determining effective pore size, mainly including dry sieving method, wet sieving method, bubble point method, capillary method, etc. Dry sieving method and wet sieving method are commonly used in China.

Principle of Testing Effective Pore Size of Standard Particle Geotextiles for Geotextiles

Using samples of single layer geotextile and related products without tension as sieves, the sieving rate of the samples and graded granular materials is calculated through testing at the specified vibration frequency and amplitude.