ASTM C1386-07
Standard Specification for Precast Autoclaved Aerated Concrete (AAC) Wall Construction Units
- Standard No.
- ASTM C1386-07
- Release Date
- 2007
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- 2013-11
- Latest
- ASTM C1386-07
- Scope
1.1 This specification covers solid nonload-bearing and load-bearing precast concrete wall units made from autoclaved aerated concrete. Precast autoclaved aerated concrete (AAC) is a cementitious product based on calcium silicate hydrates in which low density is attained by the inclusion of an agent resulting in macroscopic voids and is subjected to high-pressure steam curing. The precast autoclaved aerated concrete wall units are large-size solid rectangular prisms, which are to be laid using thin-bed mortar. Installed units covered by this specification shall be protected against direct exposure to moisture using a coating material accepted by the AAC manufacturer.
1.2 The raw materials used in the production of precast autoclaved aerated concrete are portland cement, quartz sand, water, lime, gypsum or anhydrite, and an agent resulting in macroscopic voids. The quartz sand used as a raw material may be replaced by a siliceous fine aggregate other than sand, and usually is ground to a fine powder before use. Fly ash may be used as a sand replacement. The batched raw materials are mixed thoroughly together to form a slurry. The slurry is cast into steel molds. Due to the chemical reactions that take place within the slurry, the volume expands. After setting, and before hardening, the mass is machine cut into units of various sizes. The units then are steam-cured under pressure in autoclaves where the material is transformed into a hard calcium silicate.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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. See Section 8, Section 9, and Section 10.
ASTM C1386-07 Referenced Document
- ASTM C144 Standard Specification for Aggregate for Masonry Mortar
- ASTM C150 Standard Specification for Portland Cement
- ASTM C33 Standard Specification for Concrete Aggregates
- ASTM C332 Standard Specification for Lightweight Aggregates for Insulating Concrete
- ASTM C595 Standard Specification for Blended Hydraulic Cements
- ASTM C618 Standard Specification for Fly Ash And Raw Or Calcined Natural Pozzolan For Use As A Mineral Admixture In Portland Cement Concrete
- ASTM E4 Standard Practices for Force Verification of Testing Machines
ASTM C1386-07 history
- 2007 ASTM C1386-07 Standard Specification for Precast Autoclaved Aerated Concrete (AAC) Wall Construction Units
- 1998 ASTM C1386-98 Standard Specification for Precast Autoclaved Aerated Concrete (PAAC) Wall Construction Units
