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ASTM C399-98(2012)

Current Revision

Standard Practice for Use of Chemical-Resistant Resin Mortars

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1.1 This practice provides information on the handling and proper use of chemical-resistant resin mortars such as those covered in Specification C395.

Note 1Resin mortars and grouts are differentiated as follows: resin grouts are applied to the joints, generally 1/4 in. (6 mm) wide, after the brick or tile are set in place (grouting or tile setter's method). Resin mortars are troweled onto the brick or tile, generally in a 1/8 in. (3 mm) thickness, before the brick are laid in place (buttering or bricklayer's method). Refer to Practice C723.

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.


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.


SDO ASTM: ASTM International
Document Number C399
Publication Date Aug. 1, 2012
Language en - English
Page Count 3
Revision Level 98(2012)
Supercedes
Committee COS.01
Publish Date Document Id Type View
Aug. 1, 2012 C0399-98R12 Revision
Sept. 10, 1998 C0399-98 Revision
June 1, 2008 C0399-98R08E01 Reaffirmation
Oct. 1, 2003 C0399-98R03 Reaffirmation