ASTM D6524/D6524M-16

Standard Test Method for Measuring the Resiliency of Turf Reinforcement Mats (TRMs)

SIGNIFICANCE AND USE
5.1 Resiliency may be used to control the quality of many TRMs. Resiliency may be indicative of a TRM's ability to retain original configuration after exposure to the stresses which may be exerted during manufacture, shipping, and installation. Resiliency is not generally indicative of field performance.  
5.2 The resiliency of TRMs may vary considerably depending on the pressure applied to the specimen during loading cycles. To minimize variation, specific sample size and applied pressure are indicated in this test method to ensure all results are comparable.  
5.3 To determine the effect of different pressure loadings on the final thickness of TRMs, use this test method.  
5.4 This test method may be used for acceptance testing of commercial shipments of TRMs, but caution is advised since information on between-laboratory precision is incomplete. Comparative tests, in accordance with 5.4.1 may be advisable.  
5.4.1 In a case of a dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are formed from a lot of material of the type in question. The test specimens should be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Student's t-test for unpaired date and an acceptable probability level chosen by the two begun. If bias is found, either its cause must corrected, or the purchaser and be found and interpret future tests in supplier must agree to the light of the known bias.
Note 1: The user should be aware that the compressibility of the materials, their rebound characteris...
SCOPE
1.1 This test method covers the resiliency or recovery of turf reinforcement mats (TRMs) after they have been subjected to three cycles of loading at 689 kPa [100 psi] for 1 min/per cycle.  
1.2 This test method does not provide resiliency values for TRMs under variable normal compressive stresses. This test method determines nominal resiliency.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Jun-2016
• ICS: 65.020.20 - Plant growing
• Technical Committee: D35 - Geosynthetics
• Drafting Committee: D35.05 - Geosynthetic Erosion Control

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6524/D6524M − 16
Standard Test Method for
Measuring the Resiliency of Turf Reinforcement Mats
1
(TRMs)
This standard is issued under the fixed designation D6524/D6524M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope distance between the upper and lower surfaces of the material,
measured under a specified pressure and time.
1.1 Thistestmethodcoverstheresiliencyorrecoveryofturf
3.1.3 turf reinforcement mat (TRM), n—a long-term nonde-
reinforcement mats (TRMs) after they have been subjected to
gradable rolled erosion control product composed of UV
threecyclesofloadingat689kPa[100psi]for1min/percycle.
stabilized, nondegradable, synthetic fibers, nettings, or
1.2 This test method does not provide resiliency values for
filaments, or combination thereof, processed into three-
TRMs under variable normal compressive stresses. This test
dimensional reinforcement matrices.
method determines nominal resiliency.
3.2 For definitions of other textile terms used in this test
1.3 The values stated in either SI units or inch-pound units
method, refer to Terminology D123.
are to be regarded separately as standard. The values stated in
3.3 For definitions of other terms relating to geotextiles and
each system may not be exact equivalents; therefore, each
geomembranes used in this test method, refer to Terminology
system shall be used independently of the other. Combining
D4439.
values from the two systems may result in non-conformance
with the standard.
4. Summary of Test Method
1.4 This standard does not purport to address all of the
4.1 The nominal resiliency of TRMs is determined by
safety concerns, if any, associated with its use. It is the
observing the thickness of the TRM before and after it is
responsibility of the user of this standard to establish appro-
subjected to three cycles of loading at 689 kPa [100 psi] for
priate safety and health practices and determine the applica-
1 min⁄cycle.
bility of regulatory limitations prior to use.
5. Significance and Use
2. Referenced Documents
5.1 Resiliency may be used to control the quality of many
2
2.1 ASTM Standards:
TRMs. Resiliency may be indicative of a TRM’s ability to
D123 Terminology Relating to Textiles
retain original configuration after exposure to the stresses
D4354 Practice for Sampling of Geosynthetics and Rolled
which may be exerted during manufacture, shipping, and
Erosion Control Products(RECPs) for Testing
installation. Resiliency is not generally indicative of field
D4439 Terminology for Geosynthetics
performance.
5.2 The resiliency of TRMs may vary considerably depend-
3. Terminology
ing on the pressure applied to the specimen during loading
3.1 Definitions:
cycles.To minimize variation, specific sample size and applied
3.1.1 pressure, n—the force or load per unit area.
pressure are indicated in this test method to ensure all results
3.1.2 thickness—(1)thedistancebetweenoneplanarsurface
are comparable.
and its opposite parallel and planar surface; (2) for TRMs, the
5.3 To determine the effect of different pressure loadings on
the final thickness of TRMs, use this test method.
1
This test method is under the jurisdiction of ASTM Committee D35 on
5.4 This test method may be used for acceptance testing of
Geosynthetics and is the direct responsibility of Subcommittee D35.05 on Geosyn-
commercial shipments of TRMs, but caution is advised since
thetic Erosion Control.
information on between-laboratory precision is incomplete.
Current edition approved July 1, 2016. Published July 2016. Originally approved
Comparative tests, in accordance with 5.4.1 may be advisable.
in 2000. Last previous edition approved in 2011 as D6524 – 00(2011). DOI:
10.1520/D6524_D6524M-16.
5.4.1 In a case of a dispute arising from differences in
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
reported test results when using this test method for acceptance
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
testing of commercial shipments, the purchaser and the sup-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. plier should conduct comparative tests to determine if there is
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6524/D6524M − 16
a statistical bias between their laboratories. Competent statis- is not more than 6.0 % of the average above or below the true
tical assistance is recommended for the investigation of bias. average of the sam
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6524 − 00 (Reapproved 2011) D6524/D6524M − 16
Standard Test Method for
Measuring the Resiliency of Turf Reinforcement Mats
1
(TRMs)
This standard is issued under the fixed designation D6524;D6524/D6524M; the number immediately following the designation indicates
the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the resiliency or recovery of turf reinforcement mats (TRMs) after they have been subjected to three
cycles of loading at 689 kPa (100 psi)[100 psi] for 1 min/per cycle.
1.2 This test method does not provide resiliency values for TRMs under variable normal compressive stresses. This test method
determines nominal resiliency.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values given in
parentheses are for information only. stated in each system may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
D4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products(RECPs) for Testing
D4439 Terminology for Geosynthetics
3. Terminology
3.1 Definitions:
3.1.1 pressure, n—the force or load per unit area.
3.1.2 thickness—(1) the distance between one planar surface and its opposite parallel and planar surface; (2) for TRMs, the
distance between the upper and lower surfaces of the material, measured under a specified pressure and time.
3.1.3 turf reinforcement mat (TRM), n—a long-term nondegradable rolled erosion control product composed of UV stabilized,
nondegradable, synthetic fibers, nettings, or filaments, or combination thereof, processed into three-dimensional reinforcement
matrices.
3.2 For definitions of other textile terms used in this test method, refer to Terminology D123.
3.3 For definitions of other terms relating to geotextiles and geomembranes used in this test method, refer to Terminology
D4439.
4. Summary of Test Method
4.1 The nominal resiliency of TRMs is determined by observing the thickness of the TRM before and after it is subjected to
three cycles of loading at 689 kPa (100 psi)[100 psi] for 1 1 min min/cycle.⁄cycle.
1
This test method is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.05 on Geosynthetic Erosion
Control.
Current edition approved June 1, 2011July 1, 2016. Published July 2011July 2016. Originally approved in 2000. Last previous edition approved in 20062011 as
D6524 – 00(2006).(2011). DOI: 10.1520/D6524-00R11.10.1520/D6524_D6524M-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6524/D6524M − 16
5. Significance and Use
5.1 Resiliency may be used to control the quality of many TRMs. Resiliency may be indicative of a TRM’s ability to retain
original configuration after exposure to the stresses which may be exerted during manufacture, shipping, and installation.
Resiliency is not generally indicative of field performance.
5.2 The resiliency of TRMs may vary considerably depending on the pressure applied to the specimen during loading cycles.
To minimize variation, specific sample size and applied pressure are indicated in this test method to ensure all results are
comparable.
5.3 To determine the effect of different pressure loadings on the final thickness of TRMs, use this test method.
5.4 This test method may be used for acceptance testing of commercial shipments of TRMs, but caution is advised since
information on between-laboratory precision is incomplete. Comparative tests, in accordance with 5.4.1 may be advi
...