ASTM C887-2013 Standard Specification for Packaged Dry Combined Materials for Surface Bonding Mortar《表面粘结砂浆用成包干混合材料的标准规格》.pdf

1、Designation: C887 05 (Reapproved 2010)C887 13Standard 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 revi

2、sion, the 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, and packaging of dry, combined materials for us

3、e as surface bondingmortar with concrete masonry units that have not been prefaced, 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 recommended tests for evaluatio

4、n of surface bonded masonry assemblagesused to establish design loads for the composite wall.1.4 Appendix X2 through Appendix X5 of this specification contain additional tests that may be performed on surface bondingmortar.1.5 The values stated in inch-pound units are to be regarded as standard. The

5、 values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard

6、to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use. This hazard statement applies only to Section 9 of this specification.2. Referenced Documents2.1 ASTM Standards:2C91 Specification for Masonry CementC109/C109M Test Method for

7、Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube Specimens)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 Amount

8、 of Water Required for Normal Consistency of Hydraulic Cement PasteC191 Test Methods for Time of Setting of Hydraulic Cement by Vicat NeedleC207 Specification for Hydrated Lime for Masonry PurposesC260 Specification for Air-Entraining Admixtures for ConcreteC305 Practice for Mechanical Mixing of Hyd

9、raulic Cement Pastes and Mortars of Plastic ConsistencyC348 Test Method for Flexural Strength of Hydraulic-Cement MortarsC349 Test Method for Compressive Strength of Hydraulic-Cement Mortars (Using Portions of Prisms Broken in Flexure)C359 Test Method for Early Stiffening of Hydraulic Cement (Mortar

10、 Method)C494/C494M Specification for Chemical Admixtures for ConcreteC595/C595M Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in ConcreteC666/C666M Test Method for Resistance of Concrete to Rapid Freezing and ThawingC1157

11、Performance Specification for Hydraulic CementC1600 Specification for Rapid Hardening Hydraulic Cement1 This specification is under the jurisdiction of ASTM Committee C12 on Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcommittee C12.06on Surface Bonding.Current edition

12、approved June 1, 2010Aug. 1, 2013. Published July 2010August 2013. Originally approved in 1979. Last previous edition approved in 20052010 asC887 05.C887 05 (2010). DOI: 10.1520/C0887-05R10.10.1520/C0887-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer

13、Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the pre

14、vious version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM I

15、nternational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1E72 Test Methods of Conducting Strength Tests of Panels for Building ConstructionE96/E96M Test Methods for Water Vapor Transmission of MaterialsE119 Test Methods for Fire Tests of Building Construction

16、and MaterialsE447 Test Method for Compressive Strength of Laboratory Constructed Masonry Prisms (Withdrawn 1997)3E514 Test Method for Water Penetration and Leakage Through MasonryE518 Test Methods for Flexural Bond Strength of MasonryE519 Test Method for Diagonal Tension (Shear) in Masonry Assemblag

17、es3. Terminology3.1 Definitions:3.1.1 surface bonding mortara product containing hydraulic cement, glass fiber reinforcement with or without inorganicfillers, or organic modifiers in a prepackaged form requiring only the addition of water prior to application.4. Materials and Manufacture4.1 The mate

18、rials used as ingredients in packaged, dry, combined materials for surface bonding mortar shall conform to thefollowing requirements:4.1.1 Hydraulic CementsHydraulic cements used shall conform to the following ASTM specifications:4.1.1.1 Portland CementType I, IA, II, IIA, III, or IIIA of Specificat

19、ion C150.4.1.1.2 Blended Hydraulic CementsType IS, ISA, IP, or IPA of Specification C595/C595M.4.1.1.3 Hydraulic CementType GU, HE, MS, or MH of Specification C1157.4.1.1.4 Masonry CementSpecification C91.4.1.1.5 Rapid Hardening Hydraulic Cement, Type GRH, MRH, VRH, or URH of Specification C1600.4.1

20、.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 conform to Specification C144 with the exception of grading. The maximum allowableparticle size shall not exceed one third of the recommended application thickness

21、 of the surface bonding mortar with uniformdistribution of particle size.4.1.4.1 All aggregates shall be dried, without decomposition, to a moisture content of less than 0.1 weight %, computed onmaterial dried substantially to constant weight at 221 to 230F (105 to 110C).4.1.5 Glass FibersGlass fibe

22、rs shall be chopped strands of a minimum 12-in. (13-mm) length to provide significantreinforcement in a cementitious matrix.4.1.5.1 Glass fibers for use in surface bonding mortar, that will be subjected to wetting, humid atmosphere, or contact with moistground have the potential to react with the av

23、ailable alkalies present in the portland-cement matrix, causing strength reduction ofthe surface bonding mortar.4.1.5.2 The producer shall show evidence satisfactory to the purchaser that glass composition, cement matrix, or both, have beendesigned to reduce significantly or eliminate this unfavorab

24、le reaction.4.1.6 AdditivesAdditives may be added as part of the packaged, dry, combined materials for purposes such as plasticity, airentrainment, water repellency, set acceleration, chemical bonding, and coloring. See Specifications C260 and C494/C494M.4.1.6.1 Admixtures or mortar colors shall not

25、 be added to the surface bonding mortars at the time of mixing unless providedfor in the contract specifications, and, after the materials are so added, the surface bonding mortars shall conform to the physicalrequirements prescribed in Table 1.4.1.6.2 Antifreeze CompoundsNo antifreeze liquid, salts

26、, or other substances shall be used in surface bonding mortar to lowerthe freezing point.NOTE 1Calcium chloride, when provided for in the contract specifications, and expressly recommended by the manufacturer, may be used as anaccelerator in amounts not exceeding 12 % by weight of the total bag weig

27、ht.5. Proportioning5.1 The proportions of materials such as hydraulic cements, aggregate, and glass fibers shall be such that the requirements ofTable 1 will be met when an amount of mixing water is used that is recommended by the manufacturer to produce a workingconsistency or that produces a consi

28、stency penetration of 65 to 75 mm by the Cone Penetrometer Test Method of Annex A2.6. Physical Requirements6.1 Packaged, dry, combined materials for surface bonding mortar shall conform to requirements for physical propertiesprescribed in Table 1, when the prescribed amount of water is added.3 The l

29、ast approved version of this historical standard is referenced on www.astm.org.C887 1327. Sampling and Testing7.1 Accuracy of Measurement:7.1.1 Weigh all surface bonding mortar on scales conforming to the applicable sections of National Institute of Standards andTechnology Handbook 44, “Specificatio

30、ns, Tolerances and Regulations for Commercial Weighing and Measuring Devices.”NOTE 2New and reconditioned scales shall be accurate to 60.1 % of the total capacity of the scale. When scales have been in use, they shall beaccurate to 60.4 % of the total capacity of the scale.7.1.2 Record all weights i

31、n pounds or kilograms to a minimum accuracy of 0.1 lb (0.05 kg). Record all weights in grams to anaccuracy of 1 g or 0.1 %, whichever is greater.8. Sampling Surface Bonding Mortar8.1 Use the contents of an entire package of surface bonding mortar as a sample. Weigh the package, then place it in a cl

32、ean,watertight container. Open the package by cutting it down one side and across the top and bottom. Empty the contents of thepackage into the container then carefully remove and weigh the empty bag. Mix the contents thoroughly by hand, using a scoopor trowel, then secure a representative sample we

33、ighing not less than 9 lb (4 kg) nor more than 12 lb (5.4 kg). If the package fromwhich 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 Practic

34、e C305, except that the clearance adjustment bracket shall be setfor the largest size aggregate in the mix being tested. The mixing procedure shall be as given in Annex A1.9.2 Determine the surface bonding mortar plastic and hardened properties using the following appended test methods:9.2.1 Annex A

35、3Flexural Strength of Surface Bonding Mortar.9.2.2 Annex A4Compressive Strength of Surface Bonding Mortar.9.2.3 Annex A5Time of Setting of Surface Bonding Mortar.9.2.4 Annex A6Water Retention of Surface Bonding Mortar.9.3 Mix a representative portion of the sample of the dry, combined surface bondin

36、g mortar weighing 3000 6 3 g. Use aproportionate amount of the water recommended by the manufacturer to produce a working consistency or a sufficient amount ofmixing water to produce a cone penetration of 212 to 3 in. (65 to 75 mm). Determine the consistency and weight of 400 mL ofthe mortar, in acc

37、ordance with Annex A2, then mold 1.575 by 1.575 by 6.3-in. (40 by 40 by 160-mm) prisms in the quantitynecessary to test for the desired ages. If insufficient mortar is available, make further batches of mortars using the same water toachieve the required consistency.9.3.1 Calculate the unit weight i

38、n pounds per cubic foot (kilograms per cubic metre) and yield in cubic feet (cubic metres) orthe yield in square feet per inch (square metres per millimetre) of thickness, from the weight of the mortar in the 400-mL measureused for the consistency test in Annex A2.9.3.2 Specimens for flexural streng

39、th shall be 1.575 by 1.575 by 6.3-in. (40 by 40 by 160-mm) prisms molded, cured, and testedin accordance with AnnexA3, with the broken halves of prisms tested in compression as modified cubes in accordance with AnnexA4.TABLE 1 Physical RequirementsFlexural StrengthA (average of three prisms)The flex

40、ural strength of prisms of surface bonding mortar prepared and testedin accordance with this specification shall be equal to or higher than thevalues 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 flexu

41、re)The compressive strength of modified cubes of surface bonding mortarprepared and tested in accordance with this specification shall be equal toor 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,mi

42、nimum, min 45final set, max, h 8Water retention flow after suction, min, % of originalflow, min75C887 1339.3.3 Determine the time of setting by Vicat needles in accordance with Annex A5.9.3.4 Determine the water retention in accordance with Annex A6.9.4 The report of the tests shall include the foll

43、owing:9.4.1 Net weight of dry, combined material in the bag determined to 0.1 lb (0.05 kg), by subtracting the weight of the emptybag from the gross weight of the package.9.4.2 Amount of mixing water, W, calculated in pounds (kilograms) per bag based on printed weight of the bag (Note 3).9.4.3 Unit

44、weight, U, in pounds per cubic foot (kilograms per cubic metre) in accordance with Test Method C138/C138M (Note3).9.4.4 Yield, Y, of surface bonding mortar calculated from the unit weight in cubic feet (cubic metres) per bag, based on printedweight of bag (Note 1).NOTE 3Calculate W,U, and Y as follo

45、ws:W 5RwB (1)U 50.156 WmY 511Rw! B/Uwhere:Rw = ratio of weight of mixing water to weight of dry, combined material in batch of surface bonding mortar calculated to threedecimal places,B = the printed bag weight, andWm = weight in grams of surface bonding mortar in the 400-mL measure.9.4.5 Water rete

46、ntion 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 bonding mortar may be rejected if it fails to meet any of the

47、 requirements of thisspecification.10.2 Packages varying more than 2 % from the weight printed on the bag or produce a yield less than that printed on the bagmay be rejected, and if the average weight of packages in any shipment as shown by weighing 50 packages taken at random isless than that print

48、ed on the bag, the entire shipment may be rejected.10.3 All broken packages may be rejected.11. Marking and Packaging11.1 All packages shall be identified as conforming to Specification C887 and the net weight in each bag printed thereon.11.2 All packages shall be marked appropriately with the manuf

49、acturers code or open date of production. All containers shallhave 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 the yield in square feet per inch (square metres per millimetre) ofthickness, and the amount of water recommended for mixing shall be marked on the package.NOTE 4The amount of water recommended by the manufacturer should be the amount required to produce a working consistency under normal73.4F (23C) climatic conditions.11.4 Co