ASTM C Standard Specification for Lightweight Aggregates for Concrete Masonry Units. Lab ID: Use Evaluate lightweight materials intended for use in. ASTM C/CM: Standard Specification for Lightweight Aggregates for Concrete Masonry Units. ASTM C/CM Standard Specification for Lightweight Aggregates for Concrete Masonry Units. standard by ASTM International, 06/15/.

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This specification covers lightweight aggregates intended for use in concrete masonry units when a prime consideration is to reduce the density of the units. These notes and footnotes excluding those in c33 and figures shall not be considered as requirements of the standard. Granulometric composition Particle size distribution, expressed as the passing fraction in percent by weight through a defined number of sieves.

An aggregate mix can be v331 without prior separation into coarse and fine aggregates or by combining coarse and fine aggregates sand.

Capitol Concrete Products, Inc. • Suggested Specifications

Coarse aggregate Name description for larger size fractions with D not less than 4 mm and d not less than 2 mm. Fine aggregate shall be free of injurious amounts of organic impurities. Important terms from the standard with additional notes: 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.

The aggregates shall not contain excessive amounts of deleterious substances, as determined by organic impurities, staining, and loss on ignition tests. Such as barytes, iron ore, steel granulate for heavy concrete e. Link to Active This link will astj route to the current Active version of the standard. Passing fraction, particle size distribution curves The particle size is expressed by c31 hole ast, of the test sieves just passed by the particle concerned.

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Coarse and fine normal weight aggregates.

Fine aggregate subjected to five cycles of the soundness test shall have a required weighted average loss. The values stated in each system may not be exact equivalents; astn, each system shall be used independently of the other. Lightweight aggregates for structural concrete Lightweight aggregates for masonry concrete Lightweight aggregates for insulating concrete.

Concrete Aggregates

The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material. This abstract is a brief summary of the referenced standard. Aggregates covered by this specification include: All cavities within this skeleton have to be filled with binder paste as complete as possible. Natural mineral aggregates of either high density or high fixed water content, or both.

Aggregates can occur naturally fluvial or glacialindustrially produced like lightweight aggregates as well as recycled aggregates.

ASTM C 331—05 Specification for Lightweight Aggregates for Concrete Masonry Units (PDF Download)

Fine aggregate shall consist of natural sand, manufactured sand, or a combination thereof. Material round or crushed e. Sieve x331 is identified by its standard designation in Specification E Concrete aggregates should have a strong bond with the hardened cement paste, should not interfere with the cement hardening, and should not have negative effect on concrete durability.

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Fine aggregate for use in concrete that will be subject to wetting, extended exposure to humid atmosphere, or contact with moist ground shall not contain any materials that are deleteriously reactive with the alkalis in the cement in amount sufficient to cause excessive expansion of mortar or concrete.

Aggregate Mix Aggregate consisting of a mixture of coarse and fine aggregates sand. Fine aggregate consisting of natural or manufactured sand including high-density minerals. From natural deposits, e. 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.

Three general types of lightweight aggregates are covered by this specification: ASTM C33 Standard Specification for Concrete Aggregates defines the requirements for grading and quality of fine and coarse aggregate for use in concrete. Recycled aggregate Aggregate made from mechanically processed inorganic material previously used as a building material i.

The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size. The particle size is expressed by the hole size of the test sieves just passed by the particle concerned.