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This practice provides information on the handling and proper use of chemical-resistant resin mortars. For hand mixing, a shallow mortar box should be provided. The equipment for power-mixing ranges from small mixers to simple heaters used on low-speed motors. Also, the equipment may be required for heating or cooling materials as conditions dictate. For hand mixing, the liquid shall be measured into the mortar box then stir the powder in gradually, working out all lumps and air bubbles. Mix with a mason's trowel or other suitable tool. On the other hand, for power mixing, the liquid shall be measured into the container and mix in the powder gradually and uniformly. No additives such as sand, Portland cement, or water should be added and containers of resins and powders should be closed when not being used. After mixing, mortar should be transferred immediately from the mixing vessel and spread in a thin layer on the mortar pan, as mortar heats up during setting and thick layers or large masses retain this heat. Retained heat shortens the working time. Mixed mortar that has become unworkable shall not be retempered with resin liquid but shall be discarded. After transferring, laying chemical-resistant brick or tile shall be done. The brick or tile shall be dried. The mortars shall be cleaned from chemical-resistant brick or tile and resin mortars shall be cured at normal temperatures afterwards.
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.
1.1 This practice provides information on the handling and proper use of chemical-resistant resin mortars such as those covered in Specification C395.
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.
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 this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautions are given in Sections 5 and 5.2.
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
C305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
C386 Practice for Use of Chemical-Resistant Sulfur Mortar
C395 Specification for Chemical-Resistant Resin Mortars
C410 Specification for Industrial Floor Brick
C723 Practice for Chemical-Resistant Resin Grouts for Brick or Tile
C904 Terminology Relating to Chemical-Resistant Nonmetallic Materials
C980 Specification for Industrial Chimney Lining Brick
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
UNSPSC Code 30111500(Concrete and mortars)
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ASTM C399-98(2012), Standard Practice for Use of Chemical-Resistant Resin Mortars, ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top