1、Designation: C 1306 05aStandard Test Method forHydrostatic Pressure Resistance of a Liquid-AppliedWaterproofing Membrane1This standard is issued under the fixed designation C 1306; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, th
2、e 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 describes a laboratory procedure fordetermining the resistance of a waterproofing membrane
3、 tohydrostatic pressure.1.2 The values stated in SI units are to be regarded as thestandard. The inch-pound units given in parentheses are forinformation only.1.3 The committee with jurisdiction over this standard is notaware of any comparable standards published by other orga-nizations.1.4 This sta
4、ndard 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.1.5 There are no ISO standa
5、rds similar or equivalent to thisASTM standard.2. Referenced Documents2.1 ASTM Standards:2C33 Specification for Concrete AggregatesC 150 Specification for Portland CementC 717 Terminology of Building Seals and Sealants3. Terminology3.1 DefinitionsRefer to Terminology C 717 for definitionsof technica
6、l terms used in this test standard.4. Summary of Test Method4.1 This test method is conducted in two stages. In the firststage, the test membrane is subjected to hydrostatic pressurethat is increased steadily over an 8 h period until the specimenfails or the maximum pressure is achieved. In the seco
7、nd partof the test, three more specimens are subjected to hydrostaticpressure that is increased slowly from 50 % of the failure valueto failure in 2.5 psi increments every two to three days.5. Significance and Use5.1 This test method is used as a screening tool to determinethe hydrostatic pressure t
8、o which a liquid-applied waterproof-ing membrane may be subjected without failing when stretchedover a crack in the substrate. This test method discriminatesbetween a membrane that is very resistant to hydrostaticpressure and one that is not. Because of the variability inherentin this test method, i
9、t is not recommended that this test methodbe used to set a numerical standard for hydrostatic pressureresistance. No prediction of durability at lower hydrostaticpressures can be made when using the results of this testmethod.6. Comparison to Other Standards6.1 The committee with jurisdiction over t
10、his standard is notaware of any comparable standards published by other orga-nizations.7. Apparatus and Materials7.1 Test Apparatus, made of Schedule 80 PVC pipe piecesand constructed as shown in Fig. 1.7.2 Masking Tape.7.3 TFE-Fluorocarbon or Polyethylene Spacers, three, 51by 19 by 3 mm (2 by 0.75
11、by 0.125 in.).7.4 Circulating Hot-Air Oven.7.5 Portland Cement, high early strength, conforming toSpecification C 150, Type III.7.6 Fine Aggregate, conforming to Specification C33.7.7 Source of Regulated Compressed Air, capable of at least45 psig.7.8 Molds, eight, 102 by 50 by 13 mm (4 by 2 by 0.5 i
12、n.)inside dimensions, for casting mortar blocks.7.9 Epoxy Cement, with gap filling capability, or non-sagconstruction mastic.7.10 Sealing Gaskets, eight, 102 mm (4 in.) outside diam-eter by 57 mm (2.25 in.) inside diameter by 6 mm (0.25 in.)thick made of very soft rubber.31This test method is under
13、the jurisdiction ofASTM Committee D08 on Roofingand Waterproofing and is the direct responsibility of Subcommittee D08.22 onWaterproofing and Dampproofing Systems.Current edition approved Sept. 1, 2005. Published October 2005. Originallyapproved in 1995. Last previous edition approved in 2005 as C 1
14、30605.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Adco SP 505 and Ashland Plioseal T408 rubber sealing t
15、apes have been foundsuitable for this purpose.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7.11 Vernier Calipers.8. Preparation of Substrates8.1 Mix 1 part by weight of Portland cement with 2 parts byweight of fine aggregate and s
16、tir in approximately 0.7 part byweight of water to produce a uniform mixture.8.2 Pour the mixture into the mold and allow to cure oneday at 100 % relative humidity followed by six days in tapwater, both at standard temperature.NOTE 1Prepare enough mortar to produce four blocks, each measur-ing 101 b
17、y 101 by 12 mm (4 by 4 by 0.5 in.).8.3 Cut or grind the test surfaces of the mortar blocks toremove laitance and produce a level substrate, free of fins orburrs. If a release coating is used on the mold, use only the topsurface of the mortar blocks, not exposed to the release coating,as the test sur
18、face. Cut the blocks into matching pairs eachmeasuring approximately 101 by 50 by 12 mm (4 by 2 by 0.5in.).8.4 When a quantity of blocks is prepared, store them insaturated lime water until needed.8.5 Rinse any residue from the substrates with tap water andallow them to dry overnight in an oven at 7
19、0C (158F)minimum.8.6 Other substrates may be used, and shall be prepared toprovide a clean, level test surface. Other preparation require-ments shall be as agreed upon between the supplier and thespecifier.9. Conditioning/Mixing9.1 Store all materials to be tested at standard conditions of23 6 2C (7
20、3.4 6 3.6F) and 50 6 5 % relative humidity forat least 24 h before any test specimens are prepared.9.2 Follow the manufacturers instructions for mixing andpreparing membrane materials for testing.9.3 When a primer is required by the membrane manufac-turer, use the primer as instructed by the membran
21、e manufac-turer.10. Procedure10.1 Application of the Membrane to the Test Substrate:10.1.1 Prepare four specimens. One will be used for therapid screening test and the others will be used for the longtermtest.10.1.2 Measure the thickness of each block to the nearest0.025 mm (0.001 in.), using vernie
22、r calipers. Record this value.10.1.3 For self-leveling membrane materials, lay the boundblocks on a sand bed and level them.Apply 50 mm (1 in.) widemasking tape around the perimeter of the joined test substratesso that approximately half of the width of the tape protrudesabove the test surface on al
23、l four sides to form a dam. Addsufficient material to yield a dry film thickness of 1.5 6 0.1 mm(0.060 6 0.005 in.). Check the coating thickness with a wetfilm gage. The film thickness may be built up in several coatsif specified by the manufacturer.10.1.4 For non-sag materials, stretch a rubber ban
24、d aroundthe perimeter of the substrate to keep the joint closed. Apply afilm of membrane at a dry film thickness of 1.5 6 0.1 mm(0.060 6 0.005 in.). Ensure that the material is a uniformthickness by using a draw-down bar or similar device.10.1.5 Allow the membrane to cure one week at roomtemperature
25、 and 50 % relative humidity followed by one weekin an oven at 70C (158F). Remove the test specimens fromthe oven and allow them to cool to room temperature for atleast 1 h. Lay the specimens with membrane surface down onrelease paper.10.1.6 Using vernier calipers, carefully measure the thick-ness of
26、 the substrate-membrane composite on either side of thejoint. Measure to the nearest 0.025 mm (0.001 in.). Avoidstretching or tearing the membrane while measuring thethickness. Record these measurements.10.1.7 Remove all masking tape. Insert a TFE-fluorocarbonor polyethylene spacer into the center o
27、f the joint of one of themembrane-mortar composites, leaving a cavity 3 by 25 mm(0.125 by 1 in.) at either end of the joint. Make sure the spaceris touching the membrane but does not cut it. Fill the cavitieson either side of the spacer with premixed epoxy cement orconstruction adhesive (such as Liq
28、uid Nails4brand).10.1.8 The specimen may have to be clamped to keep it flat.Clamp it with “C” clamps or a heavy piece of angle iron. Placethe angle iron with one side resting on either side of the jointto form an inverted “V” with the point above the joint.10.1.9 Allow the cement to cure for one day
29、. Remove theclamps and spacer.4Liquid Nails brand, available from Macco, has been found suitable for thispurpose.NOTE 1All parts made of schedule 80 PVC.FIG. 1 Testing ApparatusC 1306 05a210.2 Conduct Rapid Test:10.2.1 Install one membrane-mortar composite in the testapparatus by placing one sealing
30、 gasket on top of the mem-brane and one sealing gasket under the test specimen. Place thetest specimen with membrane side up in the test apparatus anddraw down on the bolts to a snug fit.NOTE 2Be careful not to use excessive torque which will cause thetest specimen to fracture. See Fig. 1.10.2.2 Fil
31、l the test apparatus with approximately 100 mL oftap water. Place the tester inside a container to catch waterwhen failure of the membrane occurs.10.2.3 Connect the apparatus to a regulated air supply andapply 0.034 MPa (5 psig) of air pressure. Increase the airpressure by approximately 0.017 MPa (2
32、.5 psig) every 15 minuntil membrane fails or pressure exceeds 0.310 MPa (45 psig).Water leaking from the bottom of the test apparatus indicatesfailure.NOTE 3Verify that the membrane has actually failed (and that thetester has not developed a leak) by adjusting the air pressure to 0.034 MPa(5 psig) o
33、r less, inverting the apparatus, and visually examining themembrane at the joint.10.3 Conduct the Long-Term Test:10.3.1 Repeat the procedures in 10.2.1 and 10.2.2.10.3.2 Connect the apparatus to a regulated air supply andapply air pressure at 80 % of failure value determined in 10.2.Increase the air
34、 pressure by approximately 0.017 MPa (2.5psig) every two days (or three days over a weekend). Continuethe test until the membrane fails or the pressure exceeds 0.310MPa (45 psig). Water leaking from the bottom of the testapparatus indicates failure.NOTE 4Verify that the membrane has actually failed
35、(and that thetester has not developed a leak) by adjusting the air pressure to 0.034 MPa(5 psig) or less, inverting the apparatus, and visually examining themembrane at the joint.10.3.3 Repeat this test with the two remaining membrane-mortar composites.11. Calculation11.1 Calculate the measured dry
36、film thickness as:DFT 5 BM 2 B (1)where:DFT = measured dry film thickness,BM = thickness of membrane-mortar composite, andB = thickness of block.12. Report12.1 Report the following information:12.1.1 The measured dry film thickness of the membrane ascalculated in 11.1,12.1.2 The air pressure in mega
37、pascals at which the mem-brane failed or the test was stopped in the rapid test (seeSection 2),12.1.3 The air pressure in megapascals, at which each of thethree membranes failed, or the test was stopped, in thelong-term test. Also record the average of these three results,and12.1.4 The duration of e
38、ach test in hours or days. Alsoreport the average of the three results for the long-term test.12.1.5 By mutual agreement, test may be conducted withalternate thickness spacer. Report width of spacer used.13. Precision and Bias13.1 Repeatability The repeatability (within a given labo-ratory) interval
39、 for three materials tested by three laboratoriesis 14.931 psi. In future use of this test method, the differencebetween two test results obtained in the same laboratory on thesame material will be expected to exceed 14.931 psi only about5 % of the time.13.2 Reproducibility The reproducibility (betw
40、een givenlaboratories) interval for three materials tested by three labo-ratories is 21.082 psi. In future use of this test method, thedifference between two test results obtained in different labo-ratories on the same material will be expected to exceed 21.082psi only about 5 % of the time.14. Keyw
41、ords14.1 hydrostatic; 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 rights, an
42、d 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 for revisi
43、on 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 hearing you sh
44、ouldmake 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).C 1306 05a3
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