1、Designation:D5385/D5385M93(Reapproved 2014)1Standard Test Method forHydrostatic Pressure Resistance of WaterproofingMembranes1This standard is issued under the fixed designation D5385/D5385M;the number immediately following the designation indicates theyear of original adoption or,in the case of rev
2、ision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEUnits information was editorially corrected in May 2014.1.Scope1.1 This test method measures the hydrostatic re
3、sistance ofa waterproofing membrane under controlled laboratory condi-tions.This test method is not suitable for systems that rely onconfinement of the seams by the backfill since backfill is notpart of this test method.1.2 The values stated in either SI units or inch-pound unitsare to be regarded s
4、eparately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 This standard does not purport to address all of thesafety concerns
5、,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Terminology2.1 Definitions:2.1.1 post-formed crackfor the purposes of this testmethod,o
6、ne that forms and widens behind the waterproofingmembrane after it has been applied and cured.3.Significance and Use3.1 This test method tests the hydrostatic resistance of awaterproofing membrane and can be used to compare thehydrostatic resistance of waterproofing membranes.3.2 No correlation has
7、been established between the perfor-mance in this test method and that in the field.4.Apparatus4.1 Hydrostatic Testing Equipment,including a chamber(Fig.1),and a clamping bracket(Fig.2),and the gasket andfasteners to form the completed assembly(Fig.3).4.2 Conditioning Room,with forced air circulatio
8、n to main-tain a temperature of 2 to 7C 35 to 45F for testing sheetsystems,18 to 24C 65 to 75F for liquid-applied systems,and large enough to condition,prepare,and test samples.4.3 Source of Compressed Air,with pressure up to 690 kPa100 psi and with an air pressure controller to regulate the airin 1
9、03-kPa 15-psi increments.4.4 Cut Off Saw,equipped with a diamond or masonryblade,to prepare precast concrete blocks for testing substrates.4.5 ClockEither a common time piece or a 1-h intervaltimer.4.6 Silicone Vacuum Grease.4.7 Precast-Concrete Patio Blocks,125-lb/ft3minimumdensity,2100-psi minimum
10、 compressive strength,smoothsurfaced,191 by 394 by 51 mm 712by 1512by 2 in.5.Test Substrate Preparation5.1 Cut an approximately 3.2-mm 18-in.wide kerf 44 mm134in.deep lengthwise down the center of a 191 by 394 by51-mm 712by 1512by 2-in.concrete block.5.2 Cut a kerf in at least three blocks for each
11、system to betested,and condition the blocks at the test temperature for atleast 24 h.5.3 Condition all other materials necessary for the system tobe tested at the test temperature for at least 4 h.6.Sample Preparation6.1 Prime,surface condition,or otherwise prepare the sur-face of the block to recei
12、ve the membrane,as recommended bythe manufacturer of the system.Permit the primer to dry orcure for the minimum time recommended by the manufacturer.6.2 For single-ply sheet samples,cut and install the mem-brane over the prepared block,with a lap of the width1This test method is under the jurisdicti
13、on ofASTM Committee D08 on Roofingand Waterproofing and is the direct responsibility of Subcommittee D08.22 onWaterproofing and Dampproofing Systems.Current edition approved May 1,2014.Published May 2014.Originallyapproved in 1993.Last previous edition approved in 2006 as D5385 93(2006).DOI:10.1520/
14、D5385_D5385M-93R14E01.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 recommended by the manufacturer perpendicular to and in thecenter of the kerf in the other side of the blocks.The edges ofthe lapped sheets should extend beyond the blo
15、ck edgesapproximately 6 mm 14in.Roll membranes intended forpressure-sensitive application with four passes of a 12.7-kg28-lb,152-mm 6-in.wide steel roller.FIG.1 ChamberFIG.2 Clamping BracketFIG.3 Completed AssemblyD5385/D5385M 93(2014)12 6.3 Follow the manufacturers instructions for all mem-branes.S
16、pacers may be used to aid in obtaining the thicknessrequired by the manufacturer.6.4 Allow all samples to cure or condition for at least 24 hor for the minimum time recommended by the manufacturer,whichever is greater.7.Procedure7.1 Mount the test specimens using the following steps:7.1.1 Measure the width of the kerf in the block.Obtain two38 by 38-mm 112by 112-in.metal spacers 3.2-mm 18-in.thicker than the width of the kerf.7.1.2 With the waterproofed surface down,support theblock at both ends
