ImageVerifierCode 换一换
格式:PDF , 页数:11 ,大小:117.86KB ,
资源ID:417727      下载积分:5000 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
注意:如需开发票,请勿充值!
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【http://www.mydoc123.com/d-417727.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: 微信登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(AASHTO M 235M M 235-2013 Standard Specification for Epoxy Resin Adhesives.pdf)为本站会员(Iclinic170)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

AASHTO M 235M M 235-2013 Standard Specification for Epoxy Resin Adhesives.pdf

1、Standard Specification for Epoxy Resin Adhesives AASHTO Designation: M 235M/M 235-131ASTM Designation: C881-10 American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249 Washington, D.C. 20001TS-4c M 235M/M 235-1 AASHTO Standard Specification for Epox

2、y Resin Adhesives AASHTO Designation: M 235M/M 235-131ASTM Designation: C881-10 1. SCOPE 1.1. This specification covers two-component epoxy resin bonding systems for application to portland cement concrete, which are able to cure under humid conditions and bond to damp surfaces. 1.2. The values stat

3、ed in either SI units or inch-pound units are to be regarded separately as standard. Some values have only SI units because the inch-pound equivalents are not used in practice. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; th

4、erefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with this standard. 1.3. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of th

5、is standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazards statements, see Section 9. 2. REFERENCED DOCUMENTS 2.1. ASTM Standards: C882/C882M, Standard Test Method for Bond Strength of Epoxy-Resin Syst

6、ems Used With Concrete By Slant Shear2 C884/C884M, Standard Test Method for Thermal Compatibility Between Concrete and an Epoxy-Resin Overlay2 D570, Standard Test Method for Water Absorption of Plastics3 D638, Standard Test Method for Tensile Properties of Plastics3 D648, Standard Test Method for De

7、flection Temperature of Plastics Under Flexural Load in the Edgewise Position3 D695, Standard Test Method for Compressive Properties of Rigid Plastics3 D1084, Standard Test Methods for Viscosity of Adhesives4 D1652, Standard Test Method for Epoxy Content of Epoxy Resins D2566, Test Method for Linear

8、 Shrinkage of Cured Thermosetting Casting Resins During Cure (Withdrawn 1993) 3. TERMINOLOGY 3.1. Definitions of Terms Specific to This Standard: 3.1.1. binder, nthe cementitious part of a grout, mortar, or concrete that binds the aggregate or filler into a cohesive mass. 2015 by the American Associ

9、ation of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4c M 235M/M 235-2 AASHTO 3.1.2. bonding system, nthe product resulting from the combination of all the components supplied for use as a bonding material. 3.1.3. component, na cons

10、tituent that is intended to be combined with one or more other constituents to form a bonding system. 3.1.4. contact strength, nbond strength measured by slant shear after a specified contact and cure time. 3.1.5. contact time, nspecified time between when the epoxy system is applied and when the tw

11、o segments are bonded together and still achieve a specified bond strength after a specified curing time and temperature. 3.1.6. curing agent, na substance that causes the conversion of a fluid resin system to a solid cured resin by means of a chemical reaction. 3.1.7. epoxy equivalent, nthe weight

12、of resin containing one molecular weight of epoxy groups. 3.1.8. epoxy resin, na resin that contains or did contain epoxy groups principally responsible for its polymerization. 3.1.9. filler, na finely divided solid, predominantly passing the 75-m No. 200 sieve, that is used to improve certain prope

13、rties of the bonding system or to reduce cost. 3.1.10. formulator, nthe agency responsible for preparing the separate components and for recommending the proportions to be used in preparing the final bonding system. 3.1.11. lot or batch, nthat quantity of manufactured material that has been subjecte

14、d to the same unit chemical or physical processes intended to make the final product substantially uniform. 3.1.12. manufacturer, na producer of a basic constituent part of a component. 3.1.13. reactive diluent, na relatively free flowing liquid used to reduce the viscosity of the liquid resin or re

15、sin mixture, and that contains reactive groups that cause it to become an integral part of the cured resin. 3.1.14. working (pot) life, nthe time after mixing during which a bonding system or mixture containing it retains sufficient workability for proper use. 4. CLASSIFICATION 4.1. This specificati

16、on provides for the classification of epoxy-resin bonding systems by type, grade, class, and color. 4.2. TypesSeven types of systems that are distinguished by the requirements of Table 1 are recognized. 2015 by the American Association of State Highway and Transportation Officials.All rights reserve

17、d. Duplication is a violation of applicable law.TS-4c M 235M/M 235-3 AASHTO Table 1Physical Requirements of Bonding Systems Type Property I II III IV V VI VII Viscosity Pas P: Grade 1, max 2.0 20 2.0 20 2.0 20 2.0 20 2.0 20 Grade 2, min 2.0 20 2.0 20 2.0 20 2.0 20 2.0 20 Max 10 100 10 100 10 100 10

18、100 10 100 Consistency, mm in.: Grade 3, Types I, II, III, IV, V, VI, VII, max 6.01/4 6.01/4 6.01/4 6.01/4 6.01/4 6.01/4 6.01/4 Gel time, minutes, min 30 30 30 30 30 30 30 Bond strength, min MPa psi: 2 days (moist cure) 7.0 1,000 7.0 1,000 7.0 1,000 14 days (moist cure) 10.0 1,500 10.0 1,500 10.0 1,

19、500 10.0 1,500 10.0 1,500 7.0 1,000 Absorption, 24-h max, % 1 1 1 1 1 Heat deflection: Temperature, min C F: 7 days 50 120 50 120 14 days 50 120 50 120 Thermal compatibility passes test Linear coefficient of shrinkage on cure, max 0.005 0.005 0.005 0.005 Compressive yield strength, min, MPa psi: 24

20、h 14.0 2,000 36 h 7.0 1,000 48 h 40.0 6,000 72 h 14.0 2,000 7 days 55.0 8,000 35.0 5,000 70.0 10,000 55.0 8,000 Compressive modulus, MPa psi: Min 1,000 150,000 600 90,000 1,400 200,000 1000 150,000 Max 896 130,000 Tensile strength, 7 days min, MPa psia35.0 5,000 14.0 2,000 50.0 7,000 40.0 6,000 Elon

21、gation at break, %, min 1 1 30 1 1 Contact strength, MPa psi min 2 days 7.0 1,000 14 days 7.0 1,000 a Not required for Viscosity Grade 3 Systems 4.2.1. Type IFor use in non-load-bearing application for bonding hardened concrete to hardened concrete and other materials, and as a binder in epoxy morta

22、rs or epoxy concretes. 4.2.2. Type IIFor use in non-load-bearing applications for bonding freshly mixed concrete to hardened concrete. 4.2.3. Type IIIFor use in bonding skid-resistant materials to hardened concrete, and as a binder in epoxy mortars or epoxy concretes used on traffic-bearing surfaces

23、 (or surfaces subject to thermal or mechanical movements). 4.2.4. Type IVFor use in load-bearing applications for bonding hardened concrete to hardened concrete and other materials and as a binder for epoxy mortars and concretes. 4.2.5. Type VFor use in load-bearing applications for bonding freshly

24、mixed concrete to hardened concrete. 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4c M 235M/M 235-4 AASHTO 4.2.6. Type VIFor bonding and sealing segmental precast elements, as in segment-by-segment

25、 erection and for span-by-span erection when temporary post tensioning is applied. 4.2.7. Type VIIFor use as a non-stress-carrying sealer for segmental precast elements when temporary post tensioning is not applied, as in span-by-span erection. Note 1Epoxy resin systems will adhere to a wide variety

26、 of materials, including wood, metals, masonry, and most plastics. Polyethylene, TFE-fluorocarbon, cellophane, and greased or waxed surfaces are among the few materials to which these systems will not adhere. 4.3. GradesThree grades of systems are defined according to their flow characteristics and

27、are distinguished by the viscosity and consistency requirements of Table 1. 4.3.1. Grade 1Low viscosity. 4.3.2. Grade 2Medium viscosity. 4.3.3. Grade 3Non-sagging consistency. 4.4. ClassesClasses A, B, and C are defined for Types I through V, and Classes D, E, and F are defined for Types VI and VII,

28、 in accordance with the range of temperatures for which they are suitable (Note 2). 4.4.1. Class AFor use below 40F 4C, with the lowest allowable temperature to be defined by the manufacturer of the product. 4.4.2. Class BFor use between 40 and 60F 4 and 15C. 4.4.3. Class CFor use above 60F 15C, wit

29、h the highest allowable temperature to be defined by the manufacturer of the product. 4.4.4. Class DFor use between 40 and 65F 4 and 18C for Type VI and VII applications. 4.4.5. Class EFor use between 60 and 80F 15 and 30C for Type VI and VII applications. 4.4.6. Class FFor use above 75F 25C for Typ

30、e VI and VII applications, with the highest allowable temperature to be defined by the manufacturer of the product. Note 2The temperature in question is usually that of the surface of the hardened concrete to which the bonding system is to be applied. This temperature may be considerably different f

31、rom that of the air. Where unusual curing rates are desired, it is possible to use a class of bonding agent at a temperature other than that for which it is normally intended. For example, a Class A system will cure rapidly at room temperature. 4.5. ColorEpoxy resin systems are normally unpigmented,

32、 but they can be colored or darkened. If a specific color is desired, it should be so stated by the purchaser. 5. ORDERING INFORMATION 5.1. The purchaser shall specify the type, grade, class, and color of bonding system desired and the size of units in which the components shall be furnished. Specia

33、l requirements regarding filling of either the components or the final bonding system should be stated. The product furnished under this specification is intended to be resistant to moisture and therefore should be suitable for either indoor or outdoor exposure. 2015 by the American Association of S

34、tate Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4c M 235M/M 235-5 AASHTO 5.2. The purchaser may specify a minimum gel time of 5 min for Types I and IV when automatic proportioning, mixing, and dispensing equipment are used. 6. MATERIALS

35、AND MANUFACTURE 6.1. The systems covered by this specification shall be furnished in two components for combining immediately prior to use in accordance with written instructions of the formulator. Component A shall contain an epoxy resin with or without a reactive diluent. Component B shall contain

36、 one or more curing agents, which on mixing with Component A shall cause the mixture to harden. A suitable inert filler may be uniformly incorporated in one or both components. The filler shall be either nonsettling or readily dispersible in any component in which it is incorporated. All systems sha

37、ll cure under humid conditions and bond to damp surfaces. 7. CHEMICAL COMPOSITION 7.1. The epoxy-resin constituent of Component A shall have an epoxy equivalent of 155 to 275. 8. PHYSICAL PROPERTIES 8.1. A mixture of Components A and B in the proportions recommended by the formulator shall conform t

38、o the properties prescribed in Table 1. 9. SAFETY HAZARDS 9.1. CautionEpoxy resins contain irritants, especially to the skin, eyes, and respiratory system. Persons handling these materials shall use appropriate protective clothing, including rubber or plastic gloves. If an epoxy resin should contact

39、 the skin, it shall be removed immediately with a dry cloth or paper towel, and the area of contact washed thoroughly with soap and water. Solvents shall not be used, because they carry the irritant into the skin. Cured epoxy resins are innocuous. 10. SAMPLING 10.1. Take a representative sample of e

40、ach of the two components from a well-blended lot prior to packaging or by withdrawing samples from no fewer than 5 percent of the containers comprising the lot or shipment. Unless the samples of the same component taken from containers show visual evidence of variability, they may be combined into

41、a single composite sample. In place of the foregoing, packaged materials may be sampled by a random selection of containers of each component from each lot, provided such a procedure is acceptable to the purchaser. 11. TEST METHODS 11.1. ConsistencyTest method to determine the consistency of an epox

42、y resin system. 11.1.1. ScopeThis test provides a method for determining the consistency of Grade 3 epoxy resin systems. 11.1.2. Significance and UseThis test method is used to determine compliance with the requirements of the specification. 2015 by the American Association of State Highway and Tran

43、sportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4c M 235M/M 235-6 AASHTO 11.1.3. Apparatus: 11.1.3.1. Paper Cupapproximately 0.100- L 3-oz unwaxed paper cup. 11.1.3.2. Mixing BladeOrdinary wooden tongue depressor or stick of similar size. 11.1.3.3. Glass Pan

44、el. 11.1.3.4. ConditioningCondition the individual components and any equipment with which they will come in contact to the following temperatures: Class A, 32 2F 0 1C; Class B, 50 2F 10 1C; Class C, 73 2F 23 1C; Class D, 65 2F 18 1C; Class E, 80 2F 27 1C; Class F, 90 2F 32 1C, or the temperature at

45、 which the material will be used (Note 2). 11.1.4. ProcedurePrepare approximately 30 mL of the bonding system. Weigh the necessary amounts of the components to an accuracy of 1 percent into a single approximately 100-mL 3-oz unwaxed paper cup. Mix immediately with a wooden tongue depressor or stick

46、of similar size. Note the time at which mixing begins. Mix for 3 min, taking care to scrape the side and bottom of the cup periodically. Immediately apply about 2 mL of the mixture to a glass panel. Form a semicylindrical bead of the bonding system by drawing the applicator blade through the sample

47、in a straight line with the panel horizontal. Immediately raise the panel to a position inclined no greater than 10 degrees from vertical and with the bead horizontal. Maintain the panel and sample at their original temperature until the bonding system has cured, as determined by an inability to ind

48、ent it appreciably with a pencil point or fingernail. Determine the consistency by measuring the flow of the lower edge of the bead from its original position at three points along its length. 11.1.5. ReportReport the average value to the nearest 1 mm 1/8in. 11.1.6. Precision and Bias: 11.1.6.1. PrecisionThe precision of the procedure in this test method for consistency is being determined. 11.1.6.2. BiasThis test method has no bias because t

copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
备案/许可证编号:苏ICP备17064731号-1