ASTM C1019-2014 Standard Test Method for Sampling and Testing Grout《灌浆取样和试验的标准试验方法》.pdf
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1、Designation: C1019 14Standard Test Method forSampling and Testing Grout1This standard is issued under the fixed designation C1019; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses i
2、ndicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This test method covers procedures for both field andlaboratory samplin
3、g and compression testing of grout used inmasonry construction. Grout for masonry is specified underSpecification C476.NOTE 1The testing agency performing this test method should beevaluated in accordance with Practice C1093.1.2 The values stated in inch-pound units are to be regardedas standard. Th
4、e values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 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 t
5、o establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C39/C39M Test Method for Compressive Strength of Cylin-drical Concrete SpecimensC143/C143M Test Method for Slump of Hydraulic-Cement
6、ConcreteC476 Specification for Grout for MasonryC511 Specification for Mixing Rooms, Moist Cabinets,Moist Rooms, and Water Storage Tanks Used in theTesting of Hydraulic Cements and ConcretesC617 Practice for Capping Cylindrical Concrete SpecimensC1064/C1064M Test Method for Temperature of FreshlyMix
7、ed Hydraulic-Cement ConcreteC1093 Practice for Accreditation of Testing Agencies forMasonryC1611/C1611M Test Method for Slump Flow of Self-Consolidating Concrete3. Significance and Use3.1 Grout used in masonry is a fluid mixture of cementitiousmaterials and aggregate with a high water content for ea
8、se ofplacement.3.1.1 During construction, grout is placed within or betweenabsorptive masonry units. Excess water must be removed fromgrout specimens in order to provide compressive strength testresults more nearly indicative of the grout strength in the wall.In this test method, molds are made from
9、 masonry units havingthe same absorption and moisture content characteristics asthose being used in the construction.3.2 This test method is used to either help select groutproportions by comparing test values or as a quality control testfor uniformity of grout preparation during construction.3.3 Th
10、e physical exposure condition and curing of the groutare not exactly reproduced, but this test method does subjectthe grout specimens to absorption conditions similar to thoseexperienced by grout in the wall.NOTE 2Test results of grout specimens taken from a wall should notbe compared to test result
11、s obtained with this test method.4. Apparatus4.1 Maximum-Minimum Thermometer.4.2 Straightedge, a steel straightedge not less than 6 in.(152.4 mm) long and not less than116 in. (1.6 mm) inthickness.4.3 Tamping Rod, a round, straight, steel rod with a diameterof38 6116 in. (10 6 2 mm) and a length of
12、12 6 4 inches.(300 6 100 millimetres). The rod shall have the tamping endor both ends rounded to a hemispherical tip of the samediameter as the rod.4.4 Nonabsorbent Blocks and Spacers, nonabsorbent, rigidsquares and rectangles with side dimensions so as to achievethe desired grout specimen side dime
13、nsions and of sufficientquantity or thickness to yield the desired grout specimenheight, as shown in Fig. 1, Fig. 2, and Fig. 3.NOTE 3Nonabsorbent blocks may be of plastic, wood, or other1This test method is under the jurisdiction of ASTM Committee C12 on Mortarsand Grouts for Unit Masonry and is th
14、e direct responsibility of SubcommitteeC12.02 on Research and Methods of Test.Current edition approved Dec. 1, 2014. Published January 2015. Originallyapproved in 1984. Last previous edition approved in 2013 as C1019 13. DOI:10.1520/C1019-14.2For referenced ASTM standards, visit the ASTM website, ww
15、w.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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, P
16、O Box C700, West Conshohocken, PA 19428-2959. United States1nonabsorbent material. Certain species of wood contain sugars whichcause retardation of cement. In order to prevent this from occurring, newwooden blocks shall be soaked in limewater for 24 h, sealed with varnishor wax, or covered with an i
17、mpermeable material prior to use.4.5 Panels and plates, pieces of34 in. (19 mm) plywoodwith dimensions as needed to contain units and grout speci-mens. Soak in limewater for 24 h, seal with varnish or wax, orcover with an impermeable material prior to use. A nonabsor-bant material of equivalent stif
18、fness to the plywood is permit-ted.PROCEDURES5. Test Specimens5.1 Each grout specimen shall have a square cross-section,3 in. (76 mm) or larger on the sides and twice as high as itswidth. Dimensional tolerances shall be within 5 % of the widthselected.5.2 Test at least three specimens at each age sp
19、ecified.NOTE 4Frequency of sampling and age of test is to be determined bythe specifier of this test method and is usually found in the constructiondocuments.6. Grout Specimen Molds6.1 Molds from Masonry Units:6.1.1 Select a level location where the molds remain undis-turbed for up to 48 h.NOTE 5The
20、 location of specimen construction should be protectedand as free from perceptible vibration as possible.6.1.2 The construction of the mold shall simulate the in-situconstruction. If the grout is placed between two different typesof masonry units, both types shall be used to construct themold.6.1.3
21、Form a space with a square cross-section, 3 in. (76mm) or larger on each side and twice as high as its width, bystacking masonry units of the same type and moisture condi-tion as those being used in the construction. The surface of theunit in contact with the grout specimen shall not have beenprevio
22、usly used to mold specimens. Place nonabsorbentblocks, cut to proper size and of the proper thickness orquantity, at the bottom of the space to achieve the necessaryheight of specimen. Tolerance on space and specimen dimen-sions shall be within 5 % of the specimen width. See Fig. 1,Fig. 2, and Fig.
23、3 and accompanying notes.6.1.4 Line the masonry surfaces that will be in contact withthe grout specimen with a thin, permeable material to preventbond to the masonry units. New lining material shall be usedfor each specimen.NOTE 6The lining, such as paper towel, is used to aid in stripping thegrout
24、specimen from the mold. Proper installation of the lining preventsirregularly sized specimens and varying test results.6.1.5 Brace units to prevent displacement during groutingand curing.6.2 Alternative MethodsAlternative methods of formingthe specimens shall be used only with the approval of thespe
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