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1、 - J I S A81404 77 9 4933608 0008663 b UDC 669.972.126 JAPANESE INDUSTRIAL STANDARD Method of Test for Waterproof Agent of Cement for Concrete Construction JIS A I 4 0 4 - 1 9 7 7 Translated and Published by Japanese Standards Assoc ia t i on Copyright Japanese Standards Association Provided by IHS
2、under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:02:54 MSTNo reproduction or networking permitted without license from IHS -,-,- Translation without guarantee standard in Japanese is to be evidence i n the event of any doubt arising, the origin
3、al Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:02:54 MSTNo reproduction or networking permitted without license from IHS -,-,- I 1. Scope J I S Ax14134 77 4933608 O000665 T UDC 669.9
4、72.126 JAPANESE INDUSTRIAL STANDARD J I S Method of Test for Waterproof Agent of A 1404-1977 Cement for Concrete Construction (Reaffirmed: 1982) This Japanese Industrial Standard specifies the test method for waterproof agent of cement, hereinafter referred to as the “waterproof agent“, to be added
5、to mortar or concrete for construction. Remarks 1. The waterproof agent is divided into two categories accord- ing to its principal use, one for mortar of external wall use and the other for concrete use. 2. The units and numerical values given in 1 in this standard are in accordance with the Intern
6、ational System of Units (SI), and are appended for reference. 2. Cement for Test The cement to be used for this test shall be ordinary Portland cement specified in JIS R 5210. 3. Sand for Test The sand to be used for this test shall be prepared by blending dry sand used for glass making and sand use
7、d for cement test at the ratio given in Table 1 and then by mixing them satisfactorily. Applicable Standards: JIS R 5201-Physical Testing Methods of Cement JIS R 5210-Portland Cement JIS Z 8801-Test Sieves Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Em
8、ployees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:02:54 MSTNo reproduction or networking permitted without license from IHS -,-,- - J I S A*L404 77 m 4733608 O000666 L ICI11 2 A 1404-1977 Table 1 Unit: % (by mass) Standard sand used for cement test Quartz sand used for glass making
9、 15 85 Standard sand from Soma, Fuku- shima Pref. and standard sand from Toyoura, Yamaguchi Pref. are blended at the ratio of 60: 40. Remark: The quartz sand used shall have passed through the 149 pm sieve opening of standard sieve specified in JIS Z 8801 but shall have stayed on the 44 pm sieve ope
10、ning. 4. Water for Test The water to be used for this test shall be fresh one. 5. Blending Ratio of Waterproof Agent The blending ratio of the waterproof agent to cement or mixed water shall be same as that for the practical use and, at the same time, as that specified by the manufacturer. 6. Settin
11、cz Test The setting test shall be made by the method specified in 7. of JIS R 5201. 7. Soundness Test The soundness test shall be made by the method specified in 8. of JIS R 5201 to examine the crack and warpage due to contraction and expansion. 8. Strength Test 8.1 The strength test shall be made f
12、or mortar which shall have been pre- pared by blending the cement used for the test specified in 2. and the sand used for the test specified in 3. at the ratio of 1: 3 by mass. However, the standard amount of water shall be 160 5 2 in flow test for the specimen with the waterproof agent added and th
13、at without waterproof agent. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:02:54 MSTNo reproduction or networking permitted without license from IHS -,-,- J I S A*LLiOLi 77 4933608 000
14、0bb7 3 M I 3 A 1404-1977 8.2 The preparation of test specimens and the test for them shall be made in accordance with 9. in JIS R 5201. The test specimens with the waterproof agent added and without waterproof agent shall count 3 respectively, and each average shall be obtained from the three test r
15、esults. The test specimens shall be taken out of the formwork 48 h later after forming, thereafter cured in a moist closet kept at a temperature of 20 rt 3OC and humidity of 80 % or more for 19 days, and further kept in a room of normal temperature for 7 days. Thereafter they shall be furnished to t
16、he strength test. dividing the value obtained from the test specimen with waterproof agent added by the value obtained from the test specimen without addition of waterproof agent. The test result shall be expressed in percentage which is obtained by 9. Water Absorption Test 9.1 Use the test specimen
17、s same as those specified in 8.2, take them out of the formwork 48 h later after forming, and thereafter cure them in a moist closet kept at a temperature of 20 k 3OC and humidity more than 80 % for 19 days 9.2 Make the water absorption test for three test specimens with waterproof agent added and a
18、lso for three test specimens without waterproof agent, and obtain each average of three test results. Express the amount and the per- centage of water absorption which are obtained by l h immersion, 5 h immersion and 24 h immersion respectively. 9.3 The test shall be made as follows: Dry the test sp
19、ecimens having been made in accordance with 9.1 at a temperature of approx. 80% to obtain a con- stant mass , and take it as the dry mass (l). Next , as shown in Figure below, immerse the lower 2 c m portion of the test specimen in water with its filled face facing upwards while keeping it in a ther
20、mostatic chamber kept at a tem- perature of 20 ? 3OC and humidity over 80 %. After a lapse of 1 h, 5 h and 24 h, take the specimen out of the water, rapidly wipe off the water of immersed portion, immediately weigh them , and take the mass at that time as the mass (l) at the time of water absorption
21、. Obtain the amount and the percentage of water absorption by the use of the following formula: . a Amount of water absorption = Mass of at the time of absorption (g) - dry mass (g) Amount of water absorption (g) of test specimen with waterproof agent added Ratio Of water = Amount of water absorptio
22、n (g) of test specimen without waterproof agent Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:02:54 MSTNo reproduction or networking permitted without license from IHS -,-,- J I S A*14
23、04 77 4733608 0000bb8 5 rS 4 A 1404-1977 Figure Unit: c m I I / flow over Note (l) For weighing, use a balance having such sensibility as to indicate to 1 g accurately. 10. Water Permeability Test 10.1 Use three test specimens with the waterproof agent added and also three test specimens without wat
24、erproof agent, and express the test results of each group in an average. 10.2 The formwork to be used for the test shall be a metallic one measuring 15 c m in inside diameter and 4 c m in inside height. Its inside face shall be finished smooth. 10.3 The mixing, water amount and making of the mortar
25、for the test shall be same as those specified in 8. 10.4 For forming, pack the mortar in the similar way to 9.7 (Packing Method) in JIS R 5201. In this test, each layer shall be beated with a tamping rod approx. 80 times. Take the test specimens out of the formwork 48 h later after forming, and ther
26、eafter cure them in a moist closet kept at a temperature of 20 k 3OC and humidity over 80 % for 19 days. remove their skin by brushing lightly the central part of 5 c m diameter or over, dry them at approx. 8OoC temperature to obtain a constant mass, and then furnish them to the water permeability t
27、est. For the test specimens after thus cured, 10.5 The water permeability test shall be made as follows: Put a rubber gasket of approx. 1 c m thickness, having a 5 c m diameter hole for water per- meation in its middle, on the centre of both faces of test specimen. fasten the gasket uniformly onto t
28、he test specimen, and then apply a hydraulic pressure of O. 1 kgf/cm2 9.8 kPa for mortar of external wall use and of 3 kgf/ cm2294. 2 kPa) for concrete use for 1 h respectively. Express the test results in amount and ratio of water permeation by the use of the following formulae: After Amount of wat
29、er permeation (g) = w8 - we where ws: mass (g) of 1 h preservation in the air of room after drying in accordance with 10.4 w8: mass (g) immediately after applying hydraulic pressure of O. 1 kgf /cm 2 9.8 kPa or 3 kgf / cm2294.2 Wa for 1 h respectively Copyright Japanese Standards Association Provide
30、d by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:02:54 MSTNo reproduction or networking permitted without license from IHS -,-,- 5. A 1404-1977 Amount of water permeation (g) of test specimen with waterproof agent added Ratio Of water
31、permeation = Amount of water permeation (g) of test specimen without -waterproof agent There shall be noted the mass wi (g) of test specimen immediately after taking it .out of the formwork for reference. Remark: Since the face of test specimen exposed to the hydraulic pres- sure is apt to produce t
32、he layer of air, care shall be taken to expel1 the air before applying the hydraulic pressure. Attached Figure. Testing Device of Water Permeation Test of Mortar, Shown for Example Unit: c m / I Water S : Test specimen (disk) G : Rubber gasket Copyright Japanese Standards Association Provided by IHS
33、 under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:02:54 MSTNo reproduction or networking permitted without license from IHS -,-,- A 1404-1977 Edition 1 Japanese Text Established by Minister of International Trade and Industry Date of Establishm
34、ent: 1960-08-01 Date of Revision: 1977-08-01 Date of Reaffirmation: 1982-08-15 Date of Public Notice in Official Gazette: 1982-08-23 Investigated by: Japanese Industrial Standards Committee Divisional Council on Architecture Technical Committee on Waterproof Agent of Cement for Concrete Construction
35、 This English translation is published by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, Tokyo 107 Japan 0 JSA, 1985 Rinted i n Tokyo by fiohbunsha Co.,Ltd. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:02:54 MSTNo reproduction or networking permitted without license from IHS -,-,-