ASTM C1090-2001(2005)e1 Standard Test Method for Measuring Changes in Height of Cylindrical Specimens of Hydraulic-Cement Grout《测量水硬水泥砂浆制圆柱形试样高度变化的标准试验方法》.pdf
《ASTM C1090-2001(2005)e1 Standard Test Method for Measuring Changes in Height of Cylindrical Specimens of Hydraulic-Cement Grout《测量水硬水泥砂浆制圆柱形试样高度变化的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM C1090-2001(2005)e1 Standard Test Method for Measuring Changes in Height of Cylindrical Specimens of Hydraulic-Cement Grout《测量水硬水泥砂浆制圆柱形试样高度变化的标准试验方法》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C 1090 01 (Reapproved 2005)e1Standard Test Method forMeasuring Changes in Height of Cylindrical Specimens ofHydraulic-Cement Grout1This standard is issued under the fixed designation C 1090; the number immediately following the designation indicates the year oforiginal adoption or, in t
2、he case of revision, the 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.e1NOTEFootnotes 4 and 5 were removed editorially June 2005.1. Scope1.1 This test method covers m
3、easurement of the changes inheight of hydraulic-cement grout by the use of 75 by 150-mm(3 by 6-in.) cylinders, when the cylinders are protected so thatthe tendency to change in height does not include evaporationso as to cause drying, uptake of moisture, carbonation, orexposure to temperatures outsi
4、de the range 23 6 2.0 C (73 63 F) or, optionally, to another specified temperature controlledwithin 6 2.0 C (6 3 F).1.2 If desired, this test method can be adapted to studies ofchanges in height involving either schedules or environmentaltreatment different from the standard procedures prescribed by
5、this test method.1.3 The values stated in SI units are to be regarded as thestandard.1.4 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 establish appro-priate safety and health practices an
6、d determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 172 Practice for Sampling Freshly Mixed ConcreteC 305 Practice for Mechanical Mixing of Hydraulic CementPastes and Mortars of Plastic ConsistencyC511 Specification for Mixing Rooms, Moi
7、st Cabinets,Moist Rooms, and Water Storage Tanks Used in theTesting of Hydraulic Cements and ConcretesC 670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsC 827 Test Method for Change in Height at Early Ages ofCylindrical Specimens from Cementitious Mi
8、xturesC 939 Test Method for Flow of Grout for Preplaced-Aggregate Concrete (Flow Cone Method)3. Terminology3.1 Definition of Term Specific to This Standard:3.1.1 change in heighteither an increase or decrease in thevertical dimension of a test specimen, provided the change hasbeen caused by factors
9、other than externally applied forces,changes in ambient temperature not conforming to the speci-fied range, drying caused by evaporation, carbonation, oruptake of moisture.4. Significance and Use4.1 This test method is intended to provide a means ofassessing the ability of a hydraulic-cement grout t
10、o retain astable volume during the stipulated testing period of 28 days,provided that the tendency to change height does not includethe effects of drying caused by evaporation, uptake of moisture,carbonation, or exposure to temperatures outside the range 23.06 2.0 C (73 6 3 F) (Note 1). An exception
11、 is made when theoptions described in the section on test conditions are exer-cised.NOTE 1This test method does not measure the change in heightbefore hardening (see Test Method C 827).5. Apparatus5.1 Cylinder Molds steel cylindrical molds with minimumwall thickness of 6 mm (14 in.) fitted with clam
12、p assemblies forclosing, 75 mm (3 in.) 6 1 % in inside diameter by 150 mm (6in.) 6 2 % in height (Note 2), fitted with a removable 6-mm(14-in.) steel base plate that can be clamped in place with thecylinder molds, top edge machined to a narrow rim as shownin Fig. 1.1This test method is under the jur
13、isdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.68 on Volume Change of Concrete.Current edition approved June 10, 2001. Published September 2001. Originallyapproved in 1988. Last previous edition approved in 1996 as C 1090 96.2Fo
14、r 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C70
15、0, West Conshohocken, PA 19428-2959, United States.NOTE 2Satisfactory molds can be made from lengths of steel tubingor pipe that is slit on one side parallel to the longitudinal axis and fittedwith a means of closing the vertical slit as well as a means of attaching abase plate.5.2 Glass Plate appro
16、ximately 100 mm (4 in.) square by 6mm (14 in.) thick, coated as thinly as possible on one surfacewith a silicone-base spray or other inert material such asmineral oil, and permitted to dry before use.5.3 Hold-Down Weight having a mass of 1.5 kg (3 lb.) 61%.5.4 designed to support and hold one cylind
17、er in a level,firm position (Fig. 2), with steel rods, and a top made ofnoncorroding metal, not more than 1 mm (364 in.) larger thanthe diameter of the measuring shaft of the micrometer depthgage, and numbered 1 to 4 (Note 3).NOTE 3The four holes should be 30 6 2mm(114 6116 in.) from thecenter of th
18、e hold-down device.5.5 Micrometer Depth Gage having a range from 25 to 50mm. (1.000 to 2.000 in) graduated in units not larger than 0.02mm (0.001 in.) (Note 4).NOTE 4The diameter of the shaft of the depth micrometer should be3.0 6 0.4 mm (18 6164 in.).5.6 Outside Micrometer Caliper, used to measure
19、the thick-ness of the plate, with a capacity of at least 12 mm (12 in.) andgraduated in units not larger than 0.02 mm (0.001 in.) havingthroat depth of at least 50 mm (2.0 in.).5.7 Tamping Rod, a straight steel rod with at least thetamping end rounded to a hemispherical tip of the samediameter as th
20、e rod, 10 mm (38 in.) in diameter and at last 250mm (10 in.) long.5.8 Mechanical Mixer, as described in Practice C 305 (Note5).NOTE 5This mixer has clearances between paddle and bowl that aresuitable only for mortars made with fine aggregates that are finer than the850-m (No. 20) sieve. Mortars made
21、 with aggregates containing particlescoarser than the 850-m sieve may require special clearance or a differenttype of paddle to permit the mixer to operate freely and avoid damage tothe paddle and bowl.6. Preparation of Sample6.1 Take a sample of the freshly mixed grout to be testedeither in accorda
22、nce with Practice C 172 or prepared insufficient quantity to permit molding at least one test specimenfor height-change measurements and such additional tests asmay be required or specified.6.2 If the grout to be tested is blended from individualcomponents, mix in accordance with Practice C 305 (Not
23、e 6).If the grout is made using a packaged product, proceed asfollows, unless otherwise recommended by the manufacturer.6.2.1 Use 3000 to 3500 g of dry material as required and theproportionate amount of water required for the test. Recordamounts used.6.2.2 Place mixing water in mixing bowl.6.2.3 Ad
24、d dry material during the first 30-s period whilemixing at slow speed, 140 6 5 r/min.6.2.4 Continue mixing for 3 min, stopping the mixer for notover 15 s after 1 min to scrape down into the batch any groutthat may have collected on the side of the bowl.FIG. 1 Cylinder Mold with Machined (Tapered) To
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