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This practice provides recommendations for use of hydraulic cement mortars for chemical-resistant masonry construction. For Portland and Portland blast-furnace slag cements, no calcium aluminate cement, lime, or admixture shall be mixed with these cements, in the mortar batch or in the mixing water. On the other hand, no Portland or Portland blast-furnace slag cements, lime, or admixture shall be mixed with calcium aluminate cement, in the mortar batch or in the mixing water. The brick shall be clean and protected from frost damage. Materials proportions shall be in accordance with the requirements indicated in this standard practice. The mixing water shall be approximately neutral and shall be potable. During the preparation of concrete fill or sub-base in new construction, the surface of the concrete fill shall be free of mortar drippings and projecting joints. Acceptable surface texture requirement is indicated in this standard practice. All dirt, dust, loose particles, surface laitance, and debris shall be removed from the concrete fill or sub-base by vigorous brooming, vacuuming, or other means. The surface must be free of grease, oil, or wax deposits. Wood or metal strips shall be used to gage the thickness of the setting bed. Several hours before placing the setting bed, the prepared concrete surface shall be thoroughly saturated with clean water. When required, the expansion joint strips shall be located and set in position. All equipment shall be clean and free of other cement, lime, and plaster, prior to mixing and placing setting bed. Grouting shall be done as soon as possible after the initial set has taken place in the setting bed. It is essential that hydraulic cement mortar or grout joints be properly cured to ensure maximum retention of the mixing water.
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.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C144 Specification for Aggregate for Masonry Mortar
C150 Specification for Portland Cement
C171 Specification for Sheet Materials for Curing Concrete
C267 Test Methods for Chemical Resistance of Mortars, Grouts, and Monolithic Surfacings and Polymer Concretes
C279 Specification for Chemical-Resistant Masonry Units
C309 Specification for Liquid Membrane-Forming Compounds for Curing Concrete
C404 Specification for Aggregates for Masonry Grout
C595 Specification for Blended Hydraulic Cements
C904 Terminology Relating to Chemical-Resistant Nonmetallic Materials
D226 Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing
D227 Specification for Coal-Tar-Saturated Organic Felt Used in Roofing and Waterproofing
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
UNSPSC Code 30111504(Mortars); 27112200(Masonry and concrete tools)