ISO 9863-1:2005 pdf download.Geosynthetics -Determination of thickness at specified pressures—Part 1: Single layers.
The thickness is determined by using the procedure A or C as specified ii either 7,2 ci 7,4. applying pressures of
2 kPa, 20 kPa and 200 kPa to an accuracy of 0.5% or a force 01(0,6 ± 0,1) N,
If agreed between the interested parties procedure B, as specified in 7.3, may be used instead of procedure A.
Other values of pressure may be used If agreed between the interested parties. if a pressure of more than 200 kPa
is applied a new. conditioned specimen shall be used for each test.
7.2 Procedure A (New specimens for each pressure)
7.2.1 Place a specimen between the clean surfaces of the reference plate and the presser-foot speafied in clause 5. Gently lower the presser-loot applying a pressure of (2±0,01) kPa to the specimen, and note the gauge reading after 30 s, unless a longer time is specified.
Release the pressure and remove the specimen.
7.2.2 Repeat the procedure m 7.2.1 unld at least 10 specimens have been tested.
7.2.3 Repeat the procedure In 7.2.1 and 7.2.2 usIng a corresponding number of new specimens and applying a pressure 01(20 ± 0,1) kPa.
7.2.4 Repeat the procedure in 7.2.1 and 7.2.2 using a corresponding number of new specimens and applying a pressure of (200 ± 1) kPa
7.3 Procedure B (Incremental loading of individual specimens)
7.3.1 Carry out the procedure in 7.2.1 but without removing the specimen.
7.3.2 Increase the pressure to (20 ± 0.1) kPa on the same specimen and note the gauge reading after 30 5. unless a longer time is specified, without removing the specimen
7.3.3 Repeat the procedure r 7.3.2 applyIng a pressure of (200 ± 1) kPa. Remove the specimen.
7.3.4 Repeat the procedures in 7.31 to 7.3,3 until at least 10 specimens have been Iested
7.4 Procedure C (Polymeric and bituminous geosynthetic barriers of non-uniform thickness)
7.4.1 Place a specimen between the clean presser points as specified In annex A. Both pressure points shall be the same shape and size. Gently lower the upper presser point applying a force 01(0.6 ± 0.1) N to the specimen and note the gauge reading after 5 s, unless a longer trie is specified. Release the force and remove the specimen.
2 kPa, 20 kPa and 200 kPa to an accuracy of 0.5% or a force 01(0,6 ± 0,1) N,
If agreed between the interested parties procedure B, as specified in 7.3, may be used instead of procedure A.
Other values of pressure may be used If agreed between the interested parties. if a pressure of more than 200 kPa
is applied a new. conditioned specimen shall be used for each test.
7.2 Procedure A (New specimens for each pressure)
7.2.1 Place a specimen between the clean surfaces of the reference plate and the presser-foot speafied in clause 5. Gently lower the presser-loot applying a pressure of (2±0,01) kPa to the specimen, and note the gauge reading after 30 s, unless a longer time is specified.
Release the pressure and remove the specimen.
7.2.2 Repeat the procedure m 7.2.1 unld at least 10 specimens have been tested.
7.2.3 Repeat the procedure In 7.2.1 and 7.2.2 usIng a corresponding number of new specimens and applying a pressure 01(20 ± 0,1) kPa.
7.2.4 Repeat the procedure in 7.2.1 and 7.2.2 using a corresponding number of new specimens and applying a pressure of (200 ± 1) kPa
7.3 Procedure B (Incremental loading of individual specimens)
7.3.1 Carry out the procedure in 7.2.1 but without removing the specimen.
7.3.2 Increase the pressure to (20 ± 0.1) kPa on the same specimen and note the gauge reading after 30 5. unless a longer time is specified, without removing the specimen
7.3.3 Repeat the procedure r 7.3.2 applyIng a pressure of (200 ± 1) kPa. Remove the specimen.
7.3.4 Repeat the procedures in 7.31 to 7.3,3 until at least 10 specimens have been Iested
7.4 Procedure C (Polymeric and bituminous geosynthetic barriers of non-uniform thickness)
7.4.1 Place a specimen between the clean presser points as specified In annex A. Both pressure points shall be the same shape and size. Gently lower the upper presser point applying a force 01(0.6 ± 0.1) N to the specimen and note the gauge reading after 5 s, unless a longer trie is specified. Release the force and remove the specimen.
