ASTM C887-2005(2010) Standard Specification for Packaged Dry Combined Materials for Surface Bonding Mortar《路面砌合灰浆用成包的干混合材料的标准规范》.pdf

1、Designation: C887 05 (Reapproved 2010)Standard Specification forPackaged, Dry, Combined Materials for Surface BondingMortar1This standard is issued under the fixed designation C887; 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 () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the materials, properties, andpackaging of dry, combined materials for use as sur

3、facebonding mortar with concrete masonry units that have not beenprefaced, coated, or painted.1.2 This specification does not cover design or application.Consult the manufacturer for specific recommendations.1.3 Appendix X1 of this specification contains the recom-mended tests for evaluation of surf

4、ace bonded masonry assem-blages used to establish design loads for the composite wall.1.4 Appendix X2 through Appendix X5 of this specificationcontain additional tests that may be performed on surfacebonding mortar.1.5 The values stated in inch-pound units are to be regardedas standard. The values g

5、iven in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.6 This standard 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 establis

6、h appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. This hazardstatement applies only to Section 9 of this specification.2. Referenced Documents2.1 ASTM Standards:2C91 Specification for Masonry CementC109/C109M Test Method for Compressi

7、ve Strength ofHydraulic Cement Mortars (Using 2-in. or 50-mm CubeSpecimens)C138/C138M Test Method for Density (Unit Weight),Yield, and Air Content (Gravimetric) of ConcreteC144 Specification for Aggregate for Masonry MortarC150 Specification for Portland CementC187 Test Method for Normal Consistency

8、 of HydraulicCementC191 Test Methods for Time of Setting of HydraulicCement by Vicat NeedleC207 Specification for Hydrated Lime for Masonry Pur-posesC260 Specification for Air-Entraining Admixtures for Con-creteC305 Practice for Mechanical Mixing of Hydraulic CementPastes and Mortars of Plastic Cons

9、istencyC348 Test Method for Flexural Strength of Hydraulic-Cement MortarsC349 Test Method for Compressive Strength of Hydraulic-Cement Mortars (Using Portions of Prisms Broken inFlexure)C359 Test Method for Early Stiffening of Hydraulic Cement(Mortar Method)C494/C494M Specification for Chemical Admi

10、xtures forConcreteC595/C595M Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or CalcinedNatural Pozzolan for Use in ConcreteC666/C666M Test Method for Resistance of Concrete toRapid Freezing and ThawingC1157 Performance Specification for Hydraulic CementE72 Tes

11、t Methods of Conducting Strength Tests of Panelsfor Building ConstructionE96/E96M Test Methods for Water Vapor Transmission ofMaterialsE119 Test Methods for Fire Tests of Building Constructionand MaterialsE447 Test Methods for Compressive Strength of MasonryPrisms31This specification is under the ju

12、risdiction of ASTM Committee C12 onMortars and Grouts for Unit Masonry and is the direct responsibility of Subcom-mittee C12.06 on Surface Bonding.Current edition approved June 1, 2010. Published July 2010. Originally approvedin 1979. Last previous edition approved in 2005 as C887 05. DOI: 10.1520/C

13、0887-05R10.2For 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.3Withdrawn.1Copyright ASTM International, 100 Barr

14、 Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.E514 Test Method for Water Penetration and LeakageThrough MasonryE518 Test Methods for Flexural Bond Strength of MasonryE519 Test Method for Diagonal Tension (Shear) in MasonryAssemblages3. Terminology3.1 Definition:3.1.1 su

15、rface bonding mortara product containing hy-draulic cement, glass fiber reinforcement with or withoutinorganic fillers, or organic modifiers in a prepackaged formrequiring only the addition of water prior to application.4. Materials and Manufacture4.1 The materials used as ingredients in packaged, d

16、ry,combined materials for surface bonding mortar shall conformto the following requirements:4.1.1 Hydraulic CementsHydraulic cements used shallconform to the following ASTM specifications:4.1.1.1 Portland CementType I, IA, II, IIA, III, or IIIA ofSpecification C150.4.1.1.2 Blended Hydraulic CementsT

17、ype IS, ISA, IP, orIPA of Specification C595/C595M.4.1.1.3 Hydraulic CementType GU, HE, MS, or MH ofSpecification C1157.4.1.1.4 Masonry CementSpecification C91.4.1.2 Hydrated LimeType S or SA of Specification C207.4.1.3 PozzolanClass N, F, or S of Specification C618.4.1.4 AggregatesAggregates shall

18、conform to Specifica-tion C144 with the exception of grading. The maximumallowable particle size shall not exceed one third of therecommended application thickness of the surface bondingmortar with uniform distribution of particle size.4.1.4.1 All aggregates shall be dried, without decomposi-tion, t

19、o a moisture content of less than 0.1 weight %, computedon material dried substantially to constant weight at 221 to230F (105 to 110C).4.1.5 Glass FibersGlass fibers shall be chopped strandsof a minimum12-in. (13-mm) length to provide significantreinforcement in a cementitious matrix.4.1.5.1 Glass f

20、ibers for use in surface bonding mortar, thatwill be subjected to wetting, humid atmosphere, or contact withmoist ground have the potential to react with the availablealkalies present in the portland-cement matrix, causing strengthreduction of the surface bonding mortar.4.1.5.2 The producer shall sh

21、ow evidence satisfactory to thepurchaser that glass composition, cement matrix, or both, havebeen designed to reduce significantly or eliminate this unfa-vorable reaction.4.1.6 AdditivesAdditives may be added as part of thepackaged, dry, combined materials for purposes such asplasticity, air entrain

22、ment, water repellency, set acceleration,chemical bonding, and coloring. See Specifications C260 andC494/C494M.4.1.6.1 Admixtures or mortar colors shall not be added tothe surface bonding mortars at the time of mixing unlessprovided for in the contract specifications, and, after thematerials are so

23、added, the surface bonding mortars shallconform to the physical requirements prescribed in Table 1.4.1.6.2 Antifreeze CompoundsNo antifreeze liquid, salts,or other substances shall be used in surface bonding mortar tolower the freezing point.NOTE 1Calcium chloride, when provided for in the contract

24、specifi-cations, and expressly recommended by the manufacturer, may be used asan accelerator in amounts not exceeding12 % by weight of the total bagweight.5. Proportioning5.1 The proportions of materials such as hydraulic cements,aggregate, and glass fibers shall be such that the requirementsof Tabl

25、e 1 will be met when an amount of mixing water is usedthat is recommended by the manufacturer to produce a workingconsistency or that produces a consistency penetration of 65 to75 mm by the Cone Penetrometer Test Method of Annex A2.6. Physical Requirements Physical Requirements6.1 Packaged, dry, com

26、bined materials for surface bondingmortar shall conform to requirements for physical propertiesprescribed in Table 1, when the prescribed amount of water isadded.7. Sampling and Testing7.1 Accuracy of Measurement:7.1.1 Weigh all surface bonding mortar on scales conform-ing to the applicable sections

27、 of National Institute of Standardsand Technology Handbook 44, “Specifications, Tolerances andRegulations for Commercial Weighing and Measuring De-vices.”NOTE 2New and reconditioned scales shall be accurate to 60.1 % ofthe total capacity of the scale. When scales have been in use, they shall beaccur

28、ate to 60.4 % of the total capacity of the scale.7.1.2 Record all weights in pounds or kilograms to aminimum accuracy of 0.1 lb (0.05 kg). Record all weights ingrams to an accuracy of1gor0.1%,whichever is greater.8. Sampling Surface Bonding Mortar8.1 Use the contents of an entire package of surface

29、bondingmortar as a sample. Weigh the package, then place it in a clean,TABLE 1 Physical RequirementsFlexural StrengthA(average of three prisms)The flexural strength of prisms of surface bonding mortar prepared and testedin accordance with this specification shall be equal to or higher than thevalues

30、 specified for the ages indicated as follows:psi (MPa)1 day 450 3.17 days 700 4.828 days 800 5.5Compressive Strength (average of prisms broken in flexure)The compressive strength of modified cubes of surface bonding mortarprepared and tested in accordance with this specification shall be equal toor

31、higher than the values specified for the ages indicated as follows:psi (MPa)1 day 1600 1128 days 3500 24.1Time of setting, Vicat needle, initial set,minimum, min 45final set, max, h 8Water retention flow after suction, min, % of originalflow, min75C887 05 (2010)2watertight container. Open the packag

32、e by cutting it down oneside and across the top and bottom. Empty the contents of thepackage into the container then carefully remove and weigh theempty bag. Mix the contents thoroughly by hand, using a scoopor trowel, then secure a representative sample weighing notless than 9 lb (4 kg) nor more th

33、an 12 lb (5.4 kg). If the packagefrom which the sample is secured weighs 20 lb (9 kg) or more,reduce its contents to the required weight by quartering.9. Mixing and Testing Surface Bonding Mortar9.1 Mortar mixing equipment shall be as specified in Prac-tice C305, except that the clearance adjustment

34、 bracket shall beset for the largest size aggregate in the mix being tested. Themixing procedure shall be as given in Annex A1.9.2 Determine the surface bonding mortar plastic and hard-ened properties using the following appended test methods:9.2.1 Annex A3Flexural Strength of Surface BondingMortar.

35、9.2.2 Annex A4Compressive Strength of Surface Bond-ing Mortar.9.2.3 Annex A5Time of Setting of Surface BondingMortar.9.2.4 Annex A6Water Retention of Surface BondingMortar.9.3 Mix a representative portion of the sample of the dry,combined surface bonding mortar weighing 3000 6 3 g. Use aproportionat

36、e amount of the water recommended by themanufacturer to produce a working consistency or a sufficientamount of mixing water to produce a cone penetration of 212to 3 in. (65 to 75 mm). Determine the consistency and weightof 400 mL of the mortar, in accordance with Annex A2, thenmold 1.575 by 1.575 by

37、 6.3-in. (40 by 40 by 160-mm) prismsin the quantity necessary to test for the desired ages. Ifinsufficient mortar is available, make further batches of mortarsusing the same water to achieve the required consistency.9.3.1 Calculate the unit weight in pounds per cubic foot(kilograms per cubic metre)

38、and yield in cubic feet (cubicmetres) or the yield in square feet per inch (square metres permillimetre) of thickness, from the weight of the mortar in the400-mL measure used for the consistency test in Annex A2.9.3.2 Specimens for flexural strength shall be 1.575 by1.575 by 6.3-in. (40 by 40 by 160

39、-mm) prisms molded, cured,and tested in accordance with Annex A3, with the brokenhalves of prisms tested in compression as modified cubes inaccordance with Annex A4.9.3.3 Determine the time of setting by Vicat needles inaccordance with Annex A5.9.3.4 Determine the water retention in accordance withA

40、nnex A6.9.4 The report of the tests shall include the following:9.4.1 Net weight of dry, combined material in the bagdetermined to 0.1 lb (0.05 kg), by subtracting the weight of theempty bag from the gross weight of the package.9.4.2 Amount of mixing water, W, calculated in pounds(kilograms) per bag

41、 based on printed weight of the bag (Note3).9.4.3 Unit weight, U, in pounds per cubic foot (kilogramsper cubic metre) in accordance with Test Method C138/C138M(Note 3).9.4.4 Yield, Y, of surface bonding mortar calculated fromthe unit weight in cubic feet (cubic metres) per bag, based onprinted weigh

42、t of bag (Note 1).NOTE 3Calculate W, U, and Y as follows:W 5 RwB (1)U 5 0.156 WmY 5 1 1 Rw! B/Uwhere:Rw= ratio of weight of mixing water to weight of dry,combined material in batch of surface bondingmortar calculated to three decimal places,B = the printed bag weight, andWm= weight in grams of surfa

43、ce bonding mortar in the400-mL measure.9.4.5 Water retention in percent.9.4.6 Flexural Strength at ages specified in Table 1.9.4.7 Compressive strength at ages specified in Table 1.9.4.8 Time of setting, initial and final in hours.10. Basis of Rejection10.1 The packaged, dry, combined surface bondin

44、g mortarmay be rejected if it fails to meet any of the requirements ofthis specification.10.2 Packages varying more than 2 % from the weightprinted on the bag or produce a yield less than that printed onthe bag may be rejected, and if the average weight of packagesin any shipment as shown by weighin

45、g 50 packages taken atrandom is less than that printed on the bag, the entire shipmentmay be rejected.10.3 All broken packages may be rejected.11. Marking and Packaging11.1 All packages shall be identified as conforming toSpecification C887 and the net weight in each bag printedthereon.11.2 All pack

46、ages shall be marked appropriately with themanufacturers code or open date of production. All containersshall have a prominently located CAUTION STATEMENT,warning of potential hazard to handlers of materials therein.11.3 The minimum yield in cubic feet (cubic metres) or theyield in square feet per i

47、nch (square metres per millimetre) ofthickness, and the amount of water recommended for mixingshall be marked on the package.NOTE 4The amount of water recommended by the manufacturershould be the amount required to produce a working consistency undernormal 73.4F (23C) climatic conditions.11.4 Contai

48、ner ConstructionThe material from which thecontainers are made shall have water vapor transmission notgreater than 100 g/m2in 24 h as determined in accordance withProcedure B of Test Methods E96/E96M.12. Keywords12.1 dry stacked; fiber reinforced; mortar; packaged; sur-face bondingC887 05 (2010)3ANN

49、EXES(Mandatory Information)A1. LABORATORY MECHANICAL MIXING OF SURFACE BONDING MORTARA1.1 ScopeA1.1.1 This method covers the mechanical mixing of sur-face bonding mortars of plastic consistency.A1.2 ApparatusA1.2.1 The apparatus shall be in accordance with therequirements of Practice C305.A1.3 Temperature and HumidityA1.3.1 The temperature of the room shall be maintainedbetween 68 and 81.5F (20 and 27.5C), and the temperature ofthe dry materials, paddle, and bowl shall be within the aboverange at the time of test. The temperature of the mixing wat