Aktivní norma | Vydána: 01.12.2024

ASTM C90-24a

Standard Specification for Dry-Cast Loadbearing Concrete Masonry Units (Includes all amendments and changes 1/20/2025).

Dostupné jazyky: Anglicky

Dostupné provedení: Online zabezpečené PDF, Norma a Redline - Online zabezpečené PDF, Tištěné, Tisk + redline

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Podrobné informace

Označení: ASTM C90-24a

Datum vydání: 01.12.2024

Stran: 5

Země: Americká technická norma

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Anotace

This specification covers hollow and solid concrete masonry units made from hydraulic cement, water, and mineral aggregates with or without the inclusion of other materials. There are three classes of concrete masonry units: normal weight, medium weight, and lightweight. These units are suitable for both loadbearing and nonloadbearing applications. Concrete masonry units shall be made from lightweight or normal weight aggregates, or both.

Keywords:
absorption, compressive strength, concrete masonry units, dry-cast, equivalent web thickness, face shell, flange, lightweight, linear drying shrinkage, loadbearing, medium weight, normal weight, webs,, ICS Number Code 91.100.30 (Concrete and concrete products)

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