ASTM C1781/C1781M-21

Standard Test Method for Surface Infiltration Rate of Permeable Unit Pavement Systems

SIGNIFICANCE AND USE
5.1 This test method can be used for acceptance of surface infiltration of new permeable unit pavement systems.  
5.2 Tests performed at the same location across a span of years may be used to detect a reduction of infiltration rate of the permeable surface, thereby identifying the need for any remedial maintenance intended to increase the infiltration rates to predefined levels.  
5.3 The infiltration rate obtained by this method is valid only for the localized area of the pavement where the test is conducted. To determine the surface infiltration rate of the entire permeable pavement, multiple locations must be tested and the results averaged.  
5.4 The minimum acceptable infiltration rate is typically established by the design engineer of record or the municipality and can be a function of the design precipitation event.  
5.5 This test method can also be used to demonstrate the infiltration rate of a particular permeable unit pavement system if the drainage joints are filled with the aggregate that is specified for use in that system.
SCOPE
1.1 This test method covers the determination of the field surface infiltration rate of in place permeable unit pavement systems surfaced with solid interlocking concrete paving units, concrete grid paving units, or clay paving brick.
Note 1: For in-place pervious concrete, Test Method C1701/C1701M should be used. Test Method C1701/C1701M is functionally identical to this standard, but does not include the added provisions for positioning and securing the test ring to a discontinuous surface, which are detailed in this standard. Both tests methods give comparable results  
1.2 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.  
1.3 The text of this test method references notes that provide explanatory material. These notes shall not be considered as requirements of the test method.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Nov-2021
• ICS: 93.080.20 - Road construction materials
• Technical Committee: C15 - Manufactured Masonry Units
• Drafting Committee: C15.04 - Research

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C1781/C1781M −21
Standard Test Method for
Surface Infiltration Rate of Permeable Unit Pavement
1
Systems
This standard is issued under the fixed designation C1781/C1781M; 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* 2. Referenced Documents
2
1.1 This test method covers the determination of the field 2.1 ASTM Standards:
surface infiltration rate of in place permeable unit pavement C902 Specification for Pedestrian and Light Traffic Paving
systems surfaced with solid interlocking concrete paving units, Brick
concrete grid paving units, or clay paving brick. C920 Specification for Elastomeric Joint Sealants
C936/C936M Specification for Solid Concrete Interlocking
NOTE 1—For in-place pervious concrete, Test Method C1701/C1701M
Paving Units
should be used. Test Method C1701/C1701M is functionally identical to
C1232 Terminology for Masonry
this standard, but does not include the added provisions for positioning
and securing the test ring to a discontinuous surface, which are detailed in
C1272 Specification for Heavy Vehicular Paving Brick
this standard. Both tests methods give comparable results
C1319 Specification for Concrete Grid Paving Units
1.2 The values stated in either SI units or inch-pound units C1701/C1701M TestMethodforInfiltrationRateofInPlace
are to be regarded separately as standard. The values stated in Pervious Concrete
3
each system may not be exact equivalents; therefore, each 2.2 Other Standards:
system shall be used independently of the other. Combining Federal Specification A-A-3110 (TT-P-1536A) Plumbing
values from the two systems may result in non-conformance Fixture Setting Compound
with the standard.
3. Terminology
1.3 Thetextofthistestmethodreferencesnotesthatprovide
3.1 The terms used in this test method are defined in
explanatory material. These notes shall not be considered as
Terminology C1232.
requirements of the test method.
3.2 Definitions:
1.4 This standard does not purport to address all of the
3.2.1 permeable unit pavement system, n—pavement with
safety concerns, if any, associated with its use. It is the
wearing surface made from clay or concrete units that allows
responsibility of the user of this standard to establish appro-
infiltration of water through open-graded aggregate in the
priate safety, health, and environmental practices and deter-
joints, cores, or other openings, to a bed, base, and subbase, or
mine the applicability of regulatory limitations prior to use.
combinations thereof.
1.5 This international standard was developed in accor-
3.2.1.1 Discussion—Permeable pavement systems are uti-
dance with internationally recognized principles on standard-
lized to reduce stormwater runoff. Permeable pavements have
ization established in the Decision on Principles for the
wearing surfaces with high initial water infiltration through
Development of International Standards, Guides and Recom-
open spaces filled with aggregates to drain water into open-
mendations issued by the World Trade Organization Technical
graded bedding and base materials. The open spaces in the
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction of ASTM Committee C15 on contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Manufactured Masonry Units and is the direct responsibility of Subcommittee Standards volume information, refer to the standard’s Document Summary page on
C15.04 on Research. the ASTM website.
3
Current edition approved Dec. 1, 2021. Published December 2021. Originally Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
ɛ1
approvedin2013.Lastpreviouseditionapprovedin2018asC1781/C1781M – 18 . Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
DOI: 10.1520/C1781_C1781M–21. dodssp.daps.dla.mil.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C1781/C1781M − 21
wearing surface are designed to enable sufficient infiltration
rates to handle runoff from designated storm types (for
example, 1 year, 24-hour event). With unit pavers the open
spaces can be achieved with exposed coring, a specially-
shaped perimeter configuration, or wider joints, or combina-
tions thereof. Per
...

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.
´1
Designation: C1781/C1781M − 18 C1781/C1781M − 21
Standard Test Method for
Surface Infiltration Rate of Permeable Unit Pavement
1
Systems
This standard is issued under the fixed designation C1781/C1781M; 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
ε NOTE—Summary of Changes section was editorially corrected in April 2020.
1. Scope*
1.1 This test method covers the determination of the field surface infiltration rate of in place permeable unit pavement systems
surfaced with solid interlocking concrete paving units, concrete grid paving units, or clay paving brick.
NOTE 1—For in-place pervious concrete, Test Method C1701/C1701M should be used. Test Method C1701/C1701M is functionally identical to this
standard, but does not include the added provisions for positioning and securing the test ring to a discontinuous surface, which are detailed in this standard.
Both tests methods give comparable results
1.2 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.
1.3 The text of this test method references notes that provide explanatory material. These notes shall not be considered as
requirements of the test method.
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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C902 Specification for Pedestrian and Light Traffic Paving Brick
C920 Specification for Elastomeric Joint Sealants
C936/C936M Specification for Solid Concrete Interlocking Paving Units
C1232 Terminology for Masonry
C1272 Specification for Heavy Vehicular Paving Brick
C1319 Specification for Concrete Grid Paving Units
1
This test method is under the jurisdiction of ASTM Committee C15 on Manufactured Masonry Units and is the direct responsibility of Subcommittee C15.04 on Research.
Current edition approved Dec. 15, 2018Dec. 1, 2021. Published December 2018December 2021. Originally approved in 2013. Last previous edition approved in 20152018
ɛ1
as C1781/C1781M – 15.C1781/C1781M – 18 . DOI: 10.1520/C1781_C1781M–18E01.10.1520/C1781_C1781M–21.
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.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C1781/C1781M − 21
C1701/C1701M Test Method for Infiltration Rate of In Place Pervious Concrete
3
2.2 Other Standards:
Federal Specification A-A-3110 (TT-P-1536A) Plumbing Fixture Setting Compound
3. Terminology
3.1 The terms used in this test method are defined in Terminology C1232.
3.2 Definitions:
3.2.1 permeable unit pavement system, n—pavement with wearing surface made from clay or concrete units that allows infiltration
of water through open-graded aggregate in the joints, cores, or other openings, to a bed, base, and subbase, or combinations thereof.
3.2.1.1 Discussion—
Permeable pavement systems are utilized to reduce stormwater runoff. Permeable pavements have wearing surfaces with high
initial water infiltration through open spaces filled with aggregates to drain water into open-graded bedding and base materials. The
open spaces in the wearing surface are designed to enable sufficient infiltration rates to handle runoff from designated storm types
(for example, 1 year, 24-hour event). With unit
...