ASTM D7492 / D7492M - 16a
Standard Guide for Use of Drainage System Media with Waterproofing Systems
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Significance and Use
5.1 This guide provides information and guidelines for the selection and installation of drainage systems media that are in conjunction with waterproofing systems. This guide is intended to be used in conjunction with Guides C898/C898M, C981, C1471/C1471M, D5898/D5898M, and D6622 and to provide guidelines for the total waterproofing and drainage system.
1. Scope
1.1 This guide makes recommendations for the selection and application of prefabricated drainage media used in conjunction with waterproofing systems on horizontal and vertical surfaces. Drainage media considered include rigid and semi-rigid insulation boards and rigid materials including plastics. This guide considers drainage media as it relates to the performance of the waterproofing system, so its primary focus is draining water away from the membrane. This guide does not cover in detail other aspects or functions of drainage system performance such as efficiency of soil dewatering. The scope of this guide does not cover other drainage media including gravel and filter fabric systems that can be constructed. The scope of this guide does not cover drainage materials or drainage system designs used for vegetative roof systems. Vegetative roof systems require specialized designs.
1.2 The committee with jurisdiction over this standard is not aware of any other comparable standards published by other organizations.
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 may involve hazardous materials, operations and equipment. 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
C165 Test Method for Measuring Compressive Properties of Thermal Insulations
C898 Guide for Use of High Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane with Separate Wearing Course
C981 Guide for Design of Built-Up Bituminous Membrane Waterproofing Systems for Building Decks
C1471 Guide for the Use of High Solids Content Cold Liquid-Applied Elastomeric Waterproofing Membrane on Vertical Surfaces
D896 Practice for Resistance of Adhesive Bonds to Chemical Reagents
D1079 Terminology Relating to Roofing and Waterproofing
D2434 Test Method for Permeability of Granular Soils (Constant Head)
D3273 Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber
D3385 Test Method for Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer
D4511 Test Method for Hydraulic Conductivity of Essentially Saturated Peat
D4630 Test Method for Determining Transmissivity and Storage Coefficient of Low-Permeability Rocks by In Situ Measurements Using the Constant Head Injection Test
D4716 Test Method for Determining the (In-plane) Flow Rate per Unit Width and Hydraulic Transmissivity of a Geosynthetic Using a Constant Head
D5898 Guide for Details for Adhered Sheet Waterproofing
D6622 Guide for Application of Fully Adhered Hot-Applied Reinforced Waterproofing Systems
E154 Test Methods for Water Vapor Retarders Used in Contact with Earth Under Concrete Slabs, on Walls, or as Ground Cover
ICS Code
ICS Number Code 91.100.50 (Binders. Sealing materials)
Referencing This Standard
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DOI: 10.1520/D7492_D7492M-16A
Citation Format
ASTM D7492 / D7492M-16a, Standard Guide for Use of Drainage System Media with Waterproofing Systems, ASTM International, West Conshohocken, PA, 2016, www.astm.org
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