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1、STD-JIS A b202-ENGL 19% 4933bn8 0548329 313 J IS JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Expansive additive for concrete ICs 91.100.30 Descriptors : expanding cement, concrete admixtures, concretes Reference number : JIS A 6202 : 1997 (E) 16 S Copyrig
2、ht Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:53:32 MDTNo reproduction or networking permitted without license from IHS -,-,- A 6202 : 1997 Foreword This translat-Jn has been made based on th
3、e original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently, JIS A 6202:1995 has been revised and replaced with this Standard.
4、In this revision, the standard, JIS R 5201, having relation to this Standard, is revised in order to make the correspondence with the International Standard, therefore this Standard has been revised to achieve the nice coordination with the standard. In JIS A 6202, the following Annexes are attached
5、. Annex 1 (normative) Test method of expansibility of expansive additive by using mortar Annex 2 (informative) Test method of restrained expansion and contraction of expansive concrete Annex 3 (informative) Test method of compressive strength of expansive concrete after restrained curing Date of Est
6、ablishment: 1980-03-01 Date of Revision: 1997-08-20 Date of Public Notice in Official Gazette: 1997-08-20 Investigated by: Japanese Industrial Standards Committee Divisional Councils on Civil Engineering and Architecture JIS A 6202 : 1997, First English edition published in 1998-01 Translated and pu
7、blished by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original TIS is to be the final authority. m 1 O JSA 1998 All rights reserved. Unless otherwise specified, no part of this publication may be reprod
8、uced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing
9、, Bernie Not for Resale, 03/14/2007 02:53:32 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS A 6202 : 1997 Expansive additive for concrete Introduction With the application of standard, normative references to the standard shall be simultane
10、ously referred to. This Japanese Industrial Standard JIS A 6202 was estab- lished in 1980 to cope with the requirement of quality standard in view of that the large amount of expansive additive for concrete has been used as admixture in the fields of cement mortar and cement concrete. 1 Scope This J
11、apanese Industrial Standard specifies the expansive additive for concrete which is used for admixture in concrete or mortar (hereafter referred to as “expansive additive”). 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions
12、of this Standard. As to those normative references, the most recent editions thereof shall be applied. JIS B 0205 JIS B 0209 JIS B 1181 JIS B 7503 JIS G 3101 JIS G 4401 JIS R 5201 JIS R 5202 JIS R 5210 JIS Z 1505 JIS Z 8401 JIS Z 8801 JIS Z 9001 Metric coarse screw threads Limits of sizes and tolera
13、nces for metric coarse screw threads Hexagon nuts and hexagon thin nuts Dial gauges Rolled steels for general structure Carbon tool steels Physical testing methods for cement Method for chemical analysis of Portland cement Portland cement Kraft paper sacks for cement Rules for rounding off of numeri
14、cal values Test sieves General rules for sampling inspection procedures 3 Definition The definition of term used in this Standard shall be as follows. a) expansive additive Admixture which produces such as ettringite or calcium hydroxide due to hydration reaction when mixed with cement and water, an
15、d then which causes the concrete or mortar to expand. 4 when being tested according to from 5 to 7. Quality The quality of expansive additive shall conform to the requirements in Table 1 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001,
16、 User=Wing, Bernie Not for Resale, 03/14/2007 02:53:32 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 A 6202 : 1997 Items Table 1 Quality of expansive additive Applicable test subclause Specified value Chemical comosition Magnesium oxide % 5.0 Max. 6.1 Ignition loss % 3.
17、0 max. 6.2 All alkalies % 0.75 max. 6.3 Chloride ion % 0.05 max. 6.4 Physical properties Initial setting min 60 and after Closing of setting h Within 10 1 Set Specific surface area cm*/g 2 O00 min. 7.1 Residue on 1.2 mm sieve ( I ) % 0.5 max. 7.2 Compressive strength N/mm2 Note () The sieve with 1.2
18、 mm means the metal wire cloth with 1.18 mm nominal size specified in JIS Z 8801. 3 days 12.5 min. 7dayc 22.5 min. 7.5 28 days 42.5 min. 5 Sample 5.1 between the parties concerned with delivery. Sampling The size and sampling method of samples shall conform to the agreement 5.2 Preparation Keep take
19、n sample in a moisture-proof airtight container which can be sealed closely. When about to be tested, put it inside laboratory to make its temperature the same as room temperature. 6 Method for chemical analysis 6.1 R 5202. Magnesium oxide The chemical analysis of magnesium oxide shall follow 12 of
20、JIS 6.2 Ignition loss The chemical analysis of ignition loss shall follow 6 of JIS R 5202. 6.3 All alkalies The chemical analysis of all alkalies shall be calculated according to 3 (Quality) of JIS R 5210 after carrying out measurement by 14 of JIS R 5202. 6.4 Chloride ion The chemical analysis of c
21、hloride ion shall follow 19 of JIS R 5202. Remarks : Chlorine content calculated according to 1 9 . 7 of JIS R 5202 shall be regarded as the content of chloride ion. 7 Method for physical test Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11111
22、11001, User=Wing, Bernie Not for Resale, 03/14/2007 02:53:32 MDTNo reproduction or networking permitted without license from IHS -,-,- . STD-JIS A b202-ENGL 1777 4733b08 0548323 8 4 4 3 A 6202 : 1997 7.1 5201. Test for specific surface area Test for specific surface area shall follow 7.1 of JIS R 7.
23、2 Test for residue on 1.2 mm sieve 7.2.1 Implements for test a) Sieve The sieve for test shall be the metal wire cloth with 1.18 mm nominal size specified in JIS Z 8801. b) Balance It is preferable to use both the balance with 2 kg of weighing capacity and 2 g of reciprocal sensibility, and the bala
24、nce with 100 g of weighing capacity and 0.1 g of reciprocal sensibility. 7.2.2 Weigh 1 O00 g of sample with the balance with 2 kg capacity, place it in a sieve, make its surface fiat by means of gentle moving the sieve, tap the sieve at the rate of 150 times per minute with one hand, and rotate the
25、sieve by about 1/6 circumference at every 25 tappings. While tapping on like above, when the passing through the sieve for 1 minute becomes 0.5 g or less, stop the tapping, and weigh the mass of residue on the sieve with the balance with 100 g capacity. Procedures 7.2.3 formula, and round it off to
26、first decimal place according to JIS Z 8401. Calculation Calculate the residue on a 1.2 mm sieve according to the following w.2 WI ?-= - x 100 where, r : residue on 1.2 mm sieve (%) w, : mass of sample (g) w2 : mass of residue on sieve (g) 7.3 Test for set The test for set shall be carried out as sp
27、ecified in 8 of JIS R 5201. However, the cement paste having a standard softness shall be produced by using admixture in which 380 g of ordinary Portland cement specified in JIS R 5210 and 20 g of expansive additive are mixed thoroughly beforehand (). Note ( 2 ) Mixing is preferably carried out by m
28、eans of shaking up-and-down and right-and-left the bag with both hands for about 1 minute after putting cement, expansive additive and suitable amount of air in a plastic bag measuring about 20 cm by 40 cm and then sealing the bag. 7.4 Test for expansibility The test for expansibility shall follow A
29、nnex 1 (normative). Informative reference : The test for expansibility of concrete under uniaxially re- strained condition shall follow Annex 2 (informative). 7.5 The test for compressive strength shall follow 10 of JIS R 5201. The type of cement and the mix proportion and mixing of mortar, however,
30、 shall be carried out as follows. Test for compressive strength Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:53:32 MDTNo reproduction or networking permitted without license from IHS
31、-,-,- 4 A 6202 : 1997 Material Cement Expansive additive Standard sand Water Type of cement The cement shall be the ordinary Portland cement specified in JIS R 5210. Mix proportion of mortar The mix proportion of mortar shall follow Table 2. Weighing of sample The weighing of sample shall be carried
32、 out using a balance capable of weighing to the nearest 0.1 g. Symbol Mass of material g C 427.5 k 2.0 E 22.5 It 0.1 S 1 350.0 f 5.0 W 225.0 1.0 Table 2 Mix proportion of mortar - 0.50 W C + E Informative reference - - - 0.05 E C + E - - 3 S C + E Mixing method The mixing method of mortar shall foll
33、ow 10.4.3 of JIS R 5201. In advance, however, cement and expansive additive shall be sufficiently mixed ( ). Informative reference : The test for compressive strength of expansive concrete under restrained condition shall follow Annex 3 (informative). Inspection For the inspection of expansive addit
34、ive, pick up the sample according to rational sampling system, carry out the tests specified in 6 and 7, and the one, which conforms to the requirements in 4, shall be judged as acceptance. The lot size of an inspection shall follow JIS Z 9001 or the agreement between the parties concerned with deli
35、very. When delivery inspection is carried out, carry out theinspection without delay to prevent weathering of the expansive additive after delivery. 9 Packaging tightness than those specified in JIS Z 1505. When expansive additive is packaged, use kraft paper sacks superior air- 10 Marking Mark the
36、following items on the wrapping sack when expansive additive is packaged, and on the invoice when no packaging. a) Name(3) b) Net mass c) Name of manufacturer or its abbreviation d) Year and month of shipment Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS
37、 Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 02:53:32 MDTNo reproduction or networking permitted without license from IHS -,-,- 5 A 6202 : 1997 The year and month of shipment may be omitted by the agreement between the parties concerned with delivery. Note ( 3 ) Commodity name
38、 may be used instead of the name. 11 form of a test record is preferable as shown in Table 3. Report Manufacturer must submit the test record when purchaser requested it. The Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing,
39、Bernie Not for Resale, 03/14/2007 02:53:32 MDTNo reproduction or networking permitted without license from IHS -,-,- 6 A 6202 : 1997 Table 3 Form of report Test record of expansive additive for concrete Name of manufacturer Name of commodity 0000000 Year and month Chemical composition Physical prope
40、rties Items _ Magnesium oxide % Ignition loss % All alkalies % Chloride ion % Fineness Set Specific surface area cm2/g Residue on 1.2 mm sieve ( 1 % Initial setting min Closing of setting h 28 days Expansibility (Rate of length change) 28 days Compressive strength 1 Specified value by J,s A 6202 Mea
41、sured value 5.0 max. I 3.0 max. I 0.75 max. I 0.05 max. 2 o00 min. 0.5 max. 60 and after I Within 10 I 0.025 min. I - 0.015 min. I 12.5 min. 22.5 min. 42.5 min. 1 Note ( ) The sieve with 1.2 mm means the metal wire cloth with 1.18 rnm nominal size specified in JIS Z 8801. Contact office Name of comp
42、any *Department in charge Location Telephone number Remarks : The size of the paper shall be A series No. 4 (210 mm X 297 mm) of Japanese Industrial Standard. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for R
43、esale, 03/14/2007 02:53:32 MDTNo reproduction or networking permitted without license from IHS -,-,- 7 A 6202 : 1997 Annex 1 (normative) Test method of expansibility of expansive additive by using mortar 1 additive for concrete by using mortar. Scope This Annex 1 (normative) specifies the test metho
44、d of expansibility of expansive 2 Implements for test 2.1 in 10.1 (2) of JIS R 5201. Formwork Formwork shall be the form for moulding of mortar specimen as specified 2.2 As shown in Annex 1 Fig. 1, the restraining device shall be composed of a restraining bar and 2 restraining end plates which have
45、been constructed with 4 nuts, and when being constructed, the surfaces of 2 restraining end plates, contacting with mortar, shall be nearly parallel and free from slant or twist. Confirm whether twist exists or not with using a surface plate before employing them. Restraining device a) The restraini
46、ng bar, made of material conforming to SK4 specified in JIS G 4401, shall be made by thread rolling over whole length of polished steel wire with 3.5 mm in diameter, and measures 158 mm in length one end of which makes sphere of 2.5 mm in radius, to use it as a gauge. Screw thread shall be the nomin
47、al designation of M4 X 0.7 ( I ) screw thread specified in JIS B 0205. Never reuse this restraining bar. Informative reference : The sectional area of restraining bar is 9.87 mm2 on the base of its effective diameter. b) The restraining end plates, square type with 39.5 mm in side length and 5 mm in
48、 thickness, shall conform to SS400 specified in JIS G 3101. Nuts are made of SS400 specified in JIS G 3101, and its shape and dimensions are Class 1 coarse hexagon nut specified in JIS B 1181. The screw thread shall be the nominal designation of M4 X 0.7 () screw thread specified in JIS B 0205. c) Notes ( I ) The allowable limit dimension and tolerance of screw thread shall be 8g (or Grade 3) specified in JIS B 0209 or the superior. ( 2 ) The allowable limit dimension and tolerance of screw thread shall be 7H (or Grade 3) speci