1、Designation: D 5385 93 (Reapproved 2006)Standard Test Method forHydrostatic Pressure Resistance of WaterproofingMembranes1This standard is issued under the fixed designation D 5385; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, t
2、he year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method measures the hydrostatic resistance ofa waterproofing membrane under controlled laborator
3、y 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 SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.3 This standar
4、d does not purport to address all of thesafety concerns, 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 Definition:2.
5、1.1 post-formed crackfor the purposes of this testmethod, one 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 r
6、esistance of waterproofing membranes.3.2 No correlation has 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 complet
7、ed assembly (Fig. 3).4.2 Conditioning Room, with forced air circulation 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
8、 to 690 kPa(100 psi) and with an air pressure controller to regulate the airin 103-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 Vacuu
9、m Grease.4.7 Precast-Concrete Patio Blocks, 125-lb/ft3minimumdensity, 2100-psi minimum compressive strength, smoothsurfaced, 191 by 394 by 51 mm (712 by 1512 by 2 in.).5. Test Substrate Preparation5.1 Cut an approximately 3.2-mm (18-in.) wide kerf 44 mm(134 in.) deep lengthwise down the center of a
10、191 by 394 by51-mm (712 by 1512 by 2-in.) concrete block.5.2 Cut a kerf in at least three blocks for each 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
11、4 h.6. Sample Preparation6.1 Prime, surface condition, or otherwise prepare the sur-face of the block to receive 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 a
12、nd install the mem-brane over the prepared block, with a lap of the widthrecommended 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 block edgesapproximately 6 mm (14 in.). Roll membranes intend
13、ed forpressure-sensitive application with four passes of a 12.7-kg(28-lb), 152-mm (6-in.) wide steel roller.1This test method is under the jurisdiction of ASTM Committee D08 on Roofingand Waterproofing and is the direct responsibility of Subcommittee D08.22 onWaterproofing and Damproofing Systems.Cu
14、rrent edition approved May 1, 2006. Published May 2006. Originallyapproved in 1993. Last previous edition approved in 2000 as D 5385 93 (2000)e1.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.3 Follow the manufacturers instruction
15、s for all mem-branes. Spacers 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.FIG. 1 ChamberFIG. 2 Clamping BracketFIG. 3 Completed Assem
16、blyD 5385 93 (2006)27. 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 (112 by 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 a
17、t both ends directly under the kerf. (A pair of the nutsused to secure the sample to the chamber have proved to beadequate supports.) Tap the block with a hammer to break thebalance of the block at the kerf.7.1.3 Insert the spacers selected in 7.1.1 at each end of thekerf, and rotate the blocks to h
18、old the spacers firmly.7.1.4 Coat both sides of the rubber gasket lightly withvacuum grease, and fit the gasket to the face of the testchamber.7.1.5 Set the membrane side of the block against the gasketand the steel bracket against the back of the block.7.1.6 Tighten the fasteners clamping the block
19、 to the cham-ber gradually, forcing the spacers to widen the joint behind themembrane (since the spacers are 3.2 mm (18 in.) wider than thesaw kerf).7.2 Test the assembly as follows:7.2.1 With the air vent open, fill the chamber with water,and close the water valve. Monitor the assembly for leaks fo
20、r30 min. Stop gasket leaks by tightening the perimeter fasteners.Record failure at 0 kPa (0 psi) if leakage is through the jointsbetween the blocks.7.2.2 Attach the air line, and increase the air pressure in103-kPa (15-psi) steps each hour, up to a maximum of 690 kPa(100 psi); the last upward pressu
21、re step is 69 kPa (10 psi). If aleak through the joint in the blocks is observed, record thepressure during the prior hour as the maximum pressure anddiscontinue the test.7.2.3 If the gasket has substantial leaks, the test is invalidand a new assembly should be prepared and tested.7.2.4 Allow the te
22、st to continue for1hat690kPa(100 psi).If the air pressure has fallen below 552 kPa (80 psi) at the endof the hour due to equipment failure, the test is invalid. Repeatthe test with a new prepared sample.8. Report8.1 Calculate the head of water from the pressure the samplewithstood successfully by mu
23、ltiplying the maximum pressurewithstood for at least1hbyasuitable factor. Multiply psi by2.31 to convert the pressure to feet of water, or multiply kPa by0.10 to convert pressure to metres of water.8.2 Report the source and thickness of the sample, the meanand standard deviation of the head of water
24、 withstood success-fully, and all pertinent observations.9. Precision Bias9.1 No statement is made concerning either the precision orbias of this test method since the result states merely that thesystem tested passes this test at a specific pressure and does notleak water for 1 h.10. Keywords10.1 h
25、ydrostatic pressure resistance; membrane;waterproofingASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent r
26、ights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either f
27、or revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair heari
28、ng you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 5385 93 (2006)3
