This International Standard specifies a method for determining the water absorption of bentonite. The bentonite component is a part of clay geosynthetic barriers (GBR-C). Water absorption depends on the specific surface of the fine particles and the surface activity of the bentonite. The test provides an index value for production control testing of GBR-C.
EN ISO 10769:2011 Referenced Document
ISO 11465:1993 Soil quality; determination of dry matter and water content on a mass basis; gravimetric method
ISO 3310-1:2000 Test sieves - Technical requirements and testing - Part 1: Test sieves of metal wire cloth
ISO 4793:1980 Laboratory sintered (fritted) filters; Porosity grading, classification and designation
EN ISO 10769:2011 history
2011EN ISO 10769:2011 Clay geosynthetic barriers - Determination of water absorption of bentonite