Geotextiles definitions

Giroud" has identified other functions of geotextiles and the definitions of these functions are given below. 

Giroud J-P. Designing with geotextiles. Geotextiles and geomembranes definitions. St Paul, Minnesota Properties and Design, IFAl, Publishers 1984. 

Ageing (see definition in Sect. 5.1) may limit the life span of geotextiles. Therefore sufficient stability must be available for the special fimc-tionality of the geotextile as a protective layer or as the geotextile component in the protective layer against the effects, which may cause internal... 

Summary of design rules for geotextiles Current definitions for geotextile openings... 

There are a large number of definitions of the characteristic of geotextile openings. Moreover, there are also different test (sieve) methods for the determination of these openings (dry, wet, hydrodynamic, etc.) which depend on national standards. These all make the comparison of test results very difficult or even impossible. That also explains the necessity of international standardization in this field. Some of the current definitions are listed below ... 

Since these effects are strongly dependent on the adopted sand fill ratio, future research and design guidance should be directed toward the definition of an optimal sand fill ratio by accounting for the deformation properties of the geotextile and... 

Van der Tuin, J. D., ed. 1989. Elsevier s Dictionary of Soil Mechanics and Geotechnical Engineering. New York Elsevier Science. This dictionary provides definitions of terms in multiple languages covering such topics as soils, rocks, sediments, geological survey methods, geophysics, and the application of geotextiles. 

According to Palmeira et al. (2005), the definition of GR based on water head measurements closer to the geotextile filter interface is recommended to predict the soil—geotextile interaction mechanisms more accurately. 

Giroud, J.P., 1984. Designing with geotextiles. Mater. Const. (Paris). In Geotextiles and Geomembrane Definitions, Properties and Designs, vol. 14, no. 18. IFAI, Publ., pp. 257-272. 

---