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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.
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 should be used. Test Method 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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
C1701/C1701M Test Method for Infiltration Rate of In Place Pervious Concrete
Other StandardsFederal Specification A-A-3110 (TT-P-1536A) Plumbing Fixture Setting Compound
ICS Number Code 93.080.20 (Road construction materials)
UNSPSC Code 30131607(Clay brick); 30121705(Paving slab)
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ASTM C1781 / C1781M-18, Standard Test Method for Surface Infiltration Rate of Permeable Unit Pavement Systems, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top