Home>ASTM Standards>ASTM E1993-98(R2020) pdf free download

ASTM E1993-98(R2020) pdf free download

ASTM E1993-98(R2020) pdf free download.Standard Specification for Bituminous Water Vapor Retarders Used in Contact with Soil or Granular Fill Under Concrete Slabs
1. Scope
1.1 This specification covers bituminous water vapor retard- ers for use in contact or granular fill under concrete slabs. 1.2 The specified tests are conducted on new materials and materials that have been conditioned or exposed to simulate potential service conditions. 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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 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 appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.5 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, see Terminologies C168 and E631. 3.2 Definitions ofTerms Specific to This Standard: 3.2.1 perm, n—the time rate of water vapor migration through a material or a construction of one grain per hour, square foot, inch of mercury pressure difference. Discussion—If a specification states that a one perm limit is required, the same flow rate will be obtained from the following relationships.3.2.2 vapor retarder, n—(formally vapor barrier) a material or construction that impedes the transmission of water vapor under specified conditions. 3.2.3 water vapor permeability, n—a property of material which is water vapor permeance through unit thickness. Since materials that provide resistance to vapor flow are never used in unit thickness, the evaluation ofboth materials and construc- tions used herein is permeance.
6. Lap Sealing
6.1 This producer shall provide supplier/seller/installer with instructions for lap sealing, including minimum width of lap, method of sealing, and shall either supply or recommend specified suitable products for lap sealing.
7. Properties
7.1 The bituminous membrane water vapor retarder shall consist of asphaltic materials reinforced with multiple plies of suitable fabric. The bituminous vapor retarder shall meet the requirements listed in Table 1 as well as those outlined below. 7.2 Permeance—Material, including lap seals, shall con- form to the requirements listed in Table 1 under the following conditions when tested according to Test Methods E154/ E154M, Section 7 (based on Test Methods E96/E96M). Labo- ratory conditions for temperature shall be 23 °C 6 1 °C [73.4 °F 6 1.8 °F] and test humidity shall be 50 % 6 2 %. 7.2.1 Permeance of new material. 7.2.2 Permeance after Wetting, Drying and Soaking—Refer to Section 8 of Test Methods E154/E154M. 7.2.3 Permeance after Testing for Resistance to Deteriora- tion from Organisms and Substances in Contacting Soil—See Section 13 of Test Methods E154/E154M. 7.3 Tensile Strength ofNew Material—Refer to Section 9 of Test Methods E154/E154M. The apparatus is described in Test Method D828. Results shall comply with Table 1. 7.4 Resistance to Puncture ofNew Material—Results shall comply with Table 1. 7.4.1 The apparatus is described in 10.2.1 of Test Methods E154/E154M. 7.4.2 See Method B of Test Method D1790. 7.5 Determine the thickness of the specimen using vernier calipers in accordance with Section 5 of Test Methods D5147/ D5147M.7.6 When specifically required by the buyer for special conditions that require properties of high temperature, low temperature, or deterioration from petroleum, vehicle, or soil poisons, the material shall be tested to the following: 7.6.1 Resistance to Plastic Flow and Elevated Temperature—See Section 11 of Test Methods E154/E154M. 7.6.2 Effect of Low Temperature on Bending—See Section 12 of Test Methods E154/E154M. 7.6.3 Resistance to Deterioration from Petroleum Vehicles for Soil Poisons—See Section 14 of Test Methods E154/ E154M. 7.6.4 Resistance to Deterioration from Exposure to Ultra- violet Light—See Section 15 of Test Methods E154/E154M.

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