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1、 Reference number ISO 1920-3:2004(E) ISO 2004 INTERNATIONAL STANDARD ISO 1920-3 First edition 2004-10-01 Testing of concrete Part 3: Making and curing test specimens Essais du bton Partie 3: Confection et prise des prouvettes Copyright International Organization for Standardization Provided by IHS u
2、nder license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:17:12 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1920-3:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing polic
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5、 ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or u
6、tilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 F
7、ax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2004 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:17:12 MDT
8、No reproduction or networking permitted without license from IHS -,-,- ISO 1920-3:2004(E) ISO 2004 All rights reserved iii Contents Page Forewordiv 1 Scope1 2 Normative references .1 3 Terms and definitions.1 4 Shape, dimensions and tolerances of specimens and moulds .2 4.1 General.2 4.2 Cubes .2 4.
9、3 Cylinders2 4.4 Prisms 4 5 Apparatus.4 5.1 Apparatus for measuring the test specimens4 5.2 Apparatus for making test specimens5 6 Preparation of test specimens.6 6.1 Sampling6 6.2 Preparation and filling of the mould .6 6.3 Compaction of the concrete.6 6.4 Surface levelling6 6.5 Marking.6 7 Curing
10、of test specimens.6 8 Measurement of dimensions and shape.7 8.1 Specimens made in calibrated moulds.7 8.2 Specimens made in uncalibrated moulds7 9 Report.7 Annex A (informative) Wet sieving of concrete.9 Annex B (informative) Application of ISO 1101 to concrete test specimens and moulds10 Annex C (n
11、ormative) Lightweight cylindrical moulds 12 Annex D (normative) Methods of compaction.18 Annex E (informative) Example of specimen preparation test report.19 Bibliography .20 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Stand
12、ards 1/9972545001 Not for Resale, 04/18/2007 20:17:12 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1920-3:2004(E) iv ISO 2004 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
13、(ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, g
14、overnmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/I
15、EC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the mem
16、ber bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 1920-3 was prepared by Technical Committee ISO/TC 71, Concrete, reinfo
17、rced concrete and prestressed concrete, Subcommittee SC 1, Test methods for concrete. This first edition of ISO 1920-3 cancels and replaces ISO 1920:1976 and ISO 2736-2:1986 which have been technically revised. ISO 1920 consists of the following parts, under the general title Testing of concrete: Pa
18、rt 1: Sampling of fresh concrete Part 2: Properties of fresh concrete Part 3: Making and curing test specimens Part 4: Strength of hardened concrete Part 5: Properties of hardened concrete other than strength Part 6: Sampling, preparing and testing of concrete cores Part 7: Non-destructive tests on
19、hardened of concrete Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:17:12 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO
20、 1920-3:2004(E) ISO 2004 All rights reserved 1 Testing of concrete Part 3: Making and curing test specimens WARNING Some concrete specimens might be too heavy for one person to carry and it is necessary that appropriate means be arranged to carry them. The use of vibrating equipment, such as vibrati
21、on tables, can cause damage to joints and loss of sensation due to nerve damage. It is necessary that moulds, density containers, etc. be clamped to the table and not held in position using ones hands while they are being vibrated. 1 Scope This part of ISO 1920 specifies the shape and dimensions of
22、concrete test specimens for strength tests and the methods of making and curing these test specimens. 2 Normative references The following referenced documents are essential for the application of this document. For dated references, only the edition cited applies. For undated references, the latest
23、 edition of the referenced document (including any amendments) applies. ISO 1920-1, Testing of concrete Part 1: Sampling of fresh concrete ISO 1101:1983, Technical drawings Geometrical tolerancing Tolerancing of form, orientation, location and run-out Generalities, definitions, symbols, indications
24、on drawings 3 Terms and definitions For the purpose of this document, the terms and definitions given in ISO 1101:1983 and the following apply. 3.1 nominal sizes of specimens range of commonly used specimen sizes amongst which a preferred size is specified in this part of ISO 1920 3.2 designated siz
25、e of specimens specimen size selected and declared by the user of this part of ISO 1920 from amongst the permitted range of nominal sizes NOTE The size of specimens is designated in millimetres. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=
26、NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:17:12 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 1920-3:2004(E) 2 ISO 2004 All rights reserved 4 Shape, dimensions and tolerances of specimens and moulds 4.1 General For each shape of test specimen
27、, e.g. cube, cylinder, and prism, the basic dimensions, l or d, should be chosen to be at least four times the maximum size of the aggregate in the concrete. NOTE A procedure for wet screening as described in Annex A can be used when the maximum size of the aggregate is larger than 1/4 of the basic
28、dimension, l or d. 4.2 Cubes 4.2.1 Nominal sizes The nominal sizes are as shown in Figure 1, where l (= l1 or l2 or l3) equals 100 mm, 120 mm, 150 mm, 200 mm, 250 mm or 300 mm. Figure 1 Nominal sizes of a cube The preferred sizes are 100 mm and 150 mm. 4.2.2 Designated sizes The designated size shal
29、l be selected from one of the nominal sizes given in 4.2.1. 4.2.3 Tolerances The following tolerances apply. a) The tolerance on the designated size shall be 0,5 %. b) The tolerance on the flatness of the load-bearing surfaces shall be 0,000 5 l, expressed in millimetres. c) The load-bearing surface
30、s shall be parallel to a tolerance of not greater than 1,0 mm. d) The tolerance on the perpendicularity of the sides of the cube with reference to the base shall be 0,5 mm. For the definitions of flatness, parallelism, perpendicularity and straightness, see Annex B. 4.3 Cylinders 4.3.1 Nominal sizes
31、 The nominal sizes are as shown in Figure 2, where d equals 100 mm, 113 mm, 125 mm, 150 mm, 200 mm, 250 mm or 300 mm. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:17:12 MDT
32、No reproduction or networking permitted without license from IHS -,-,- ISO 1920-3:2004(E) ISO 2004 All rights reserved 3 Figure 2 Nominal sizes of a cylinder NOTE The diameter of 113 mm corresponds to a load-bearing area of 10 000 mm2. The preferred sizes are 100 mm 200 mm, 125 mm 250 mm and 150 mm
33、300 mm. The height, h, of the cylinder shall be 2d except for specimens used for the tensile splitting test. In the latter case, the height of the specimen shall be between d and 2d. 4.3.2 Designated sizes Designated sizes may be selected within 10 % of a nominal size. 4.3.3 Tolerances The following
34、 tolerances apply. a) The tolerance on the designated diameter, d, shall be 0,5 %. b) The tolerance on the flatness of the load-bearing surfaces shall be 0,000 5 d, expressed in millimetres, except for cylinders tested by unbonded capping methods. c) The tolerance on the flatness of the load-bearing
35、 surfaces of cylinders tested by unbonded capping methods, such as sand box or elastomeric pads, shall be 0,02 d, expressed in millimetres. d) The load-bearing surfaces shall be parallel to a tolerance of not greater than 1,0 millimetres. e) The tolerance on the perpendicularity of the sides of the
36、cylinder with reference to the end faces shall be 0,5 mm. f) The tolerance on the height, h, of the cylinders shall be 5 %. g) The straightness tolerance on any surface parallel to the centre line of the cylinders to be used in compression tests shall be 0,5 mm. h) The straightness tolerance of any
37、surface parallel to the centre line of the cylinders to be used in tensile splitting tests shall be 0,2 mm. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:17:12 MDTNo reprodu
38、ction or networking permitted without license from IHS -,-,- ISO 1920-3:2004(E) 4 ISO 2004 All rights reserved 4.4 Prisms 4.4.1 Nominal sizes The nominal sizes are as shown in Figure 3, where l (=l1 or l2) equals 100 mm, 150 mm, 200 mm, 250 mm or 300 mm and L W 3,5 l. Figure 3 Nominal sizes of prism
39、s The preferred sizes are l = 100 mm and L = 400 mm or l = 150 mm and L = 600 mm. 4.4.2 Designated sizes The designated depth, l1, and width, l2, of prisms shall be selected from one of the nominal sizes given in 4.4.1. The designated length, L, of prisms shall be not less than 3,5 l. 4.4.3 Toleranc
40、es The following tolerances apply. a) The tolerance on the designated depth, l1, and width, l2, shall be 0,5 %. b) The tolerance on the designated length, L, shall be 5 %. c) The load-bearing surfaces shall be parallel to a tolerance not greater than 1,0 mm. d) The tolerance on the perpendicularity
41、of the sides of the prism with reference to the base shall be 0,5 mm. e) The tolerance on the straightness of the load-bearing area for specimens to be used for bending (flexural) tests shall be 0,2 mm. 5 Apparatus 5.1 Apparatus for measuring the test specimens. 5.1.1 Callipers and/or rules, capable
42、 of establishing that the relevant dimensions of specimens or moulds are within 0,5 % of the dimension. 5.1.2 Gauge, capable of establishing that the relevant flatness of specimens or moulds is within 0,000 5 l or d. 5.1.3 Squares and gauges (or other similar means), capable of establishing the perp
43、endicularity and parallelism of specimens and moulds within 0,5 mm. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 20:17:12 MDTNo reproduction or networking permitted without li
44、cense from IHS -,-,- ISO 1920-3:2004(E) ISO 2004 All rights reserved 5 5.2 Apparatus for making test specimens 5.2.1 Moulds, capable of providing test specimens with the dimensions and tolerances that conform to this part of ISO 1920. The moulds shall be made of steel or cast-iron, which shall be th
45、e reference materials. If moulds are manufactured from other materials, performance test data shall be available that demonstrate equivalence with the steel or cast-iron moulds. Lightweight cylindrical moulds shall conform to the requirements in Annex C. Moulds shall be watertight and shall be non-a
46、bsorbent. Moulds shall be checked at intervals of not more than 1 year. If the mould is in calibration at time of use, the checking of parallelism, verticality and flatness of specimens is not required, provided the size measurements are within tolerance. Individual moulds shall be identifiable. The
47、 designation should be an identification number either welded on the mould body or securely tagged to the moulds. 5.2.2 Filling frame, fitted tightly to the mould and used to simplify the filling of the moulds. The use of a filling frame is optional, but if used, this shall be stated in the test rep
48、ort (see Clause 9). 5.2.3 Means of compacting the concrete in the mould, which shall be one of the following: 5.2.3.1 internal vibrator, with a minimum frequency of 120 Hz (7 200 cycles per minutes). The diameter of the tube shall not exceed one-quarter of the smallest dimension of the test specimen; 5.2.3.2 vibrating table, with a minimum frequency of 40 Hz (2 400 cycles per minute); 5.2.3.3 compacting rod, of circular