ASTM C580-2002 Standard Test Method for Flexural Strength and Modulus of Elasticity of Chemical-Resistant Mortars Grouts Monolithic Surfacings and Polymer Concretes《耐化学侵蚀的灰浆、簿浆及整体面.pdf
《ASTM C580-2002 Standard Test Method for Flexural Strength and Modulus of Elasticity of Chemical-Resistant Mortars Grouts Monolithic Surfacings and Polymer Concretes《耐化学侵蚀的灰浆、簿浆及整体面.pdf》由会员分享,可在线阅读,更多相关《ASTM C580-2002 Standard Test Method for Flexural Strength and Modulus of Elasticity of Chemical-Resistant Mortars Grouts Monolithic Surfacings and Polymer Concretes《耐化学侵蚀的灰浆、簿浆及整体面.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C 580 02Standard Test Method forFlexural Strength and Modulus of Elasticity of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, andPolymer Concretes1This standard is issued under the fixed designation C 580; the number immediately following the designation indicates the year o
2、foriginal adoption or, in the 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.This standard has been approved for use by agencies of the Department
3、 of Defense.1. Scope1.1 This test method covers the determination of flexuralstrength and modulus of elasticity in flexure of cured chemical-resistant materials in the form of molded rectangular beams.These materials include mortars, brick and tile grouts, struc-tural grouts, machinery grouts, monol
4、ithic surfacings (60 milsor greater), and polymer concretes. These materials shall bebased on resin, silicate, silica, or sulfur binders.1.2 A bar of rectangular cross section is tested in flexure asa simple beam in center point loading: the bar rests on twosupports and the load is applied by means
5、of a loading nosemidway between supports.1.3 Method A outlines the testing procedure generally usedfor systems containing aggregate less than 0.2 in. (5 mm) insize. Method B covers the testing procedure generally used forsystems containing aggregate from 0.2 to 0.4 in. (10 mm) insize. Method C is us
6、ed for systems containing aggregate largerthan 0.4 in.1.4 The values stated in inch-pound units are to be regardedas standard. Within this text, the SI units shown in parenthesesare provided for information only.1.5 This standard does not purport to address all of thesafety concerns, if any, associa
7、ted 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.2. Referenced Documents2.1 ASTM Standards:C 904 Terminology Relating to Chemical Resistant Nonme-tallic
8、 Materials2C 1312 Practice for Making and Conditioning Chemical-Resistant Sulfur Polymer Cement Concrete Test Speci-mens in the Laboratory2E 4 Practices for Force Verification of Testing Machines33. Terminology3.1 DefinitionsFor definitions of terms used in this testmethod, see Terminology C 904.4.
9、Significance and Use4.1 This test method is generally applicable to rigid andsemirigid materials. Although flexural strength cannot bedetermined for those materials that do not break, tangentmodulus of elasticity can be determined.4.2 The results obtained by this test method should serve asa guide i
10、n, but not as the sole basis for, selection of achemical-resistant material for a particular application. Noattempt has been made to incorporate into this test method allthe various factors that may affect the performance of amaterial when subjected to actual service.4.3 In addition to the tangent m
11、odulus of elasticity, a secantmodulus is calculated at the point on the stress-strain (load-deflection) graph where the strain is 50 % of the maximumstrain.5. Apparatus5.1 Weighing Equipment, shall be capable of weighingmaterials or specimens to 60.3 % accuracy.5.2 Equipment for Mixing Materials, sh
12、all consist of acontainer of suitable size, preferably corrosion-resistant, aspatula, trowel, or mechanical mixer, and a38 in. diameter rodwith a rounded end, for use in casting specimens.5.3 Specimen Molds:5.3.1 Method AMolds to permit the casting of bars 1 6116 in. (25 6 1 mm) square by 10 in. (25
13、0 mm) minimumlength.5.3.1.1 For sulfur mortars, the following additional equip-ment is required:(a) Cover Plate, of a size sufficient to enclose the open sideof the bar mold. The base plate from another similar bar moldhas been found to be acceptable.1This test method is under the jurisdiction of AS
14、TM Committee C03 onChemical-Resistant Nonmetallic Materials and is the direct responsibility ofSubcommittee C03.01 on Test Methods.Current edition approved Oct. 10, 2002. Published December 2002. Originallypublished as C 580 65T. Last previous edition C 580 98.2Annual Book of ASTM Standards, Vol 04.
15、05.3Annual Book of ASTM Standards, Vol 03.01.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.(b) C-Clamp, large enough to fasten the cover platesecurely over the bar mold.(c) Melting Chamber, of sufficient volume and heat capac-ity t
16、o melt the sulfur mortar sample and maintain the tempera-ture of the melt between 260 and 290F (127 and 143C).(d) Laboratory Mixer, of such a type and speed to becapable of lifting the aggregate without beating air into themelt.(e) Ladle, of sufficient capacity to completely pour one bar.(f) Masking
17、 Tape, 1 in. (25 mm), or an equivalent.5.3.2 Method BMolds to permit the casting of bars 2 618in. (50 6 3 mm) square by 12 in. (300 mm) minimum length.5.3.3 Method CMolds to permit casting of rectangularbeams shall have a minimum cross-sectional dimension of 2 in.and at least three times the nominal
18、 maximum size of thecoarse aggregate in the polymer concrete (Note 1). The barlength shall be at least three times the beam depth plus 2 in.NOTE 1The nominal maximum size of coarse aggregate is that sizenext larger than the largest sieve on which at least 15 % of the coarseaggregate by weight is ret
19、ained.5.4 Testing MachineThe testing machine shall be of anytype sufficient to provide the required load and the rate ofdeflection prescribed. It shall have been verified to have anaccuracy of 1.0 % or better within twelve months of the time ofuse in accordance with Practices E 4. It shall be equipp
20、ed withan appropriate device to record deflection and produce a graphof load versus deflection.5.5 Loading Nose and SupportsThe loading nose andsupports shall have cylindrical surfaces. To avoid excessiveindentation, the radius of the nose and supports shall be at least18 in. for Method A specimens,
21、14 in. for Method B specimens,and12 in. for Method C specimens.6. Test Specimens6.1 All specimens for a single determination shall be madefrom a single mix containing sufficient amounts of the com-ponents in the proportions and in the manner specified by themanufacturer of the materials. If the prop
22、ortions so specifiedare by volume, the components shall be weighed and thecorresponding proportions by weight shall be reported.6.1.1 Number of SpecimensPrepare a minimum of six testbar specimens for each material tested. Additional specimensmay be required to establish the cross head speed in 9.3.2
23、.6.2 Specimen Size:6.2.1 For Method A, the specimen shall be 1 6116 in. (256 1 mm) square by 10 to 14 in. (254 to 356 mm) long.6.2.2 For Method B, the specimens shall be 2 618 in. (256 1 mm) square by 12 to 16 in. (305 to 406 mm) long.6.2.3 For Method C, the specimens shall be rectangularbeams with
24、cross section as in 5.3.3 and with a length equal tothe span plus 2 to 12 in. (51 to 305 mm).6.3 Specimen Preparation Temperature:6.3.1 Resin, Silicate, and Silica MaterialsThe standardtemperature of the materials, molds, apparatus, and the ambienttemperature of the mixing area shall be 73 6 4F (23
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