1、Designation: C 466 03 (Reapproved 2008)Standard Specification forChemically Setting Silicate and Silica Chemical-ResistantMortars1This standard is issued under the fixed designation C 466; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revi
2、sion, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers requirements for chemicallysetting silicate and silica chemical-resistant
3、mortars for bond-ing chemical-resistant masonry units.NOTE 1For information on the use of these materials, see PracticeC 397.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for informat
4、ion onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2C 279 Specification for Chemical-Resistant Masonry UnitsC 321 Test Method for Bond Strength of Chemical-Resistant MortarsC 397 Practice for Use of Chemically Setting Chemical-Resistant Silicate and Silica MortarsC 413
5、 Test Method for Absorption of Chemical-ResistantMortars, Grouts, Monolithic Surfacings, and Polymer Con-cretesC 414 Test Method for Working, Setting, and ServiceStrength Setting Times of Chemically Setting Chemical-Resistant Silicate and Silica MortarsC 531 Test Method for Linear Shrinkage and Coef
6、ficient ofThermal Expansion of Chemical-Resistant Mortars,Grouts, Monolithic Surfacings, and Polymer ConcretesC 579 Test Methods for Compressive Strength of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, andPolymer ConcretesC 580 Test Method for Flexural Strength and Modulus ofElasticity
7、 of Chemical-Resistant Mortars, Grouts, Mono-lithic Surfacings, and Polymer ConcretesC 904 Terminology Relating to Chemical-Resistant Non-metallic Materials3. Terminology3.1 Definitions:3.1.1 For definitions of terms used in this standard specifi-cation , see Terminology C 904.4. Types of Mortars4.1
8、 Single and Multicomponent:4.1.1 A single component mortar consists of a binderpowder, a setting agent, and a chemically inert solid filler(s) towhich potable water is added to make a trowelable mortar.4.1.2 A multicomponent mortar consists of a binder liquid,a powder containing a setting agent, and
9、 a chemically inertsolid filler(s) which are combined to form a trowelable mortar.4.1.3 Some single and multicomponent mortars may permitthe addition of a properly graded, high-purity silica sand inaccordance with the manufacturers recommendation.5. Chemical Composition5.1 The setting agent generall
10、y used is an acid compoundthat reacts with the silicate binders, or an alkaline compoundthat reacts with the silica sol binder, to form an insoluble silicagel. The filler materials shall be selected to have resistance tothe particular chemicals to which they will be exposed. Theservice limitations o
11、f the filler shall be defined by the manu-facturer.6. Physical Requirements Physical Requirements6.1 Chemically setting silicate or silica chemical-resistantmortars prepared from these materials shall conform to therespective physical requirements prescribed in Table 1.7. Performance Requirements7.1
12、 The liquid binder shall be of a viscosity that will permitit to be readily mixed manually with the filler. The filler shallhave properly graded particles that will permit the preparationof a joint thickness of18 in. (3.2 mm).1This specification is under the jurisdiction of ASTM Committee C03 onChem
13、ical-Resistant Nonmetallic Materials and is the direct responsibility ofSubcommittee C03.02 on Monolithics, Grouts and Polymer Concretes.Current edition approved June 1, 2008. Published July 2008. Originally approvedin 1961. Last previous edition approved in 2003 as C 466 03.2For referenced ASTM sta
14、ndards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken,
15、 PA 19428-2959, United States.8. Test Methods8.1 The properties enumerated in this specification shall bedetermined in accordance with the following methods:8.1.1 Bond StrengthTest Method C 321. Brick describedin Specification C 279 shall be used in this test.8.1.2 AbsorptionTest Method C 413.8.1.3
16、Working Life and Setting TimesTest Method C 414.8.1.4 ShrinkageTest Method C 531.8.1.5 Compressive StrengthTest Methods C 579.8.1.6 Flexural StrengthTest Method C 580.9. Packaging and Package Marking9.1 Single component mortars shall be packaged properly toprevent deterioration in storage.9.2 For mu
17、lticomponent mortars, the binder liquid shall bepackaged in suitable containers and marked to denote the typeof silicate or silica solution. The powder shall be packagedproperly to prevent deterioration in storage.10. Keywords10.1 masonry units; chemical-resistant; mortars; chemicalresistant; mortar
18、s; potassium silicate; mortars; silica; mortars;sodium silicateASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such
19、 patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited
20、 either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a f
21、air hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this s
22、tandard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 1 Physical RequirementsPropertyType of MortarSodium Silicate Potassium Silicate SilicaBond strength, min, 7 days
23、, psi (MPa) 80 (0.5) 150 (1.0) 80 (0.5)Absorption, max, weight % 18.0 19.0 15.0Working life, minimum, at 73F (23C), minutes 15 20 15Shrinkage, max, 7 days at 73 6 4F (23 6 2C), % 1.0 3.0 Compressive strength, min, 7 days, psi (MPa) 1400 (9.6) 3000 (20.7) 3500 (24.1)Flexural strength, min, 7 days, psi (MPa) 500 (3.4) 600 (4.1) 900 (6.2)C 466 03 (2008)2
