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This specification covers requirements for chemically setting silicate and silica chemical-resistant mortars for bonding chemical-resistant masonry units. The setting agent generally used is an acid compound that reacts with the silicate binders, or an alkaline compound that reacts with the silica sol binder, to form an insoluble silica gel. The filler materials shall be selected to have resistance to the particular chemicals to which they will be exposed. Chemically setting silicate or silica chemical-resistant mortars prepared from these materials shall conform to the respective physical requirements prescribed. The liquid binder shall be of a viscosity that will permit it to be readily mixed manually with the filler. The bond strength, absorption, working life and setting times, shrinkage, compressive strength, and flexural strength shall be tested.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C279 Specification for Chemical-Resistant Masonry Units
C321 Test Method for Bond Strength of Chemical-Resistant Mortars
C397 Practice for Use of Chemically Setting Chemical-Resistant Silicate and Silica Mortars
C531 Test Method for Linear Shrinkage and Coefficient of Thermal Expansion of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes
C579 Test Methods for Compressive Strength of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes
C580 Test Method for Flexural Strength and Modulus of Elasticity of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes
C904 Terminology Relating to Chemical-Resistant Nonmetallic Materials
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
UNSPSC Code 30111500(Concrete and mortars)
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ASTM C466-03(2012), Standard Specification for Chemically Setting Silicate and Silica Chemical-Resistant Mortars, ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top