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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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.

Capitol Concrete Products, Inc. • Suggested Specifications

It is of high importance to design a reasonable combination of the different materials and their corresponding fractions in order to achieve a continuous combined grading curve. Filler rock flour Aggregate predominantly passing the 0. Ast size is identified by its standard designation in Specification E ASTM C Standard Specification for Aggregates for Radiation-Sielding Concrete covers special aggregates for use in radiation-shielding concretes in which composition or high specific gravity, or both, are of prime consideration.

Fine aggregate sand Designation for smaller size fractions with D not greater than 4 mm. Fine aggregate consisting of natural or manufactured sand including high-density minerals.

In Axtm aggregates are defined in standard EN This specification covers lightweight aggregates intended for use in concrete masonry units when a prime consideration is to reduce the density of the units.

Lightweight aggregate under test shall meet requirements for clay lumps and friable particles, uniformity of grading, loose bulk density, uniformity of loose bulk density, popouts, resistance to freezing and thawing, and drying shrinkage. An aggregate mix can be produced without prior separation into coarse and fine aggregates or by combining coarse and fine aggregates sand.

Concrete Aggregates

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. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.


Such as expanded clay, pumice, polystyrene for lightweight concrete, insulating concretes. These notes and footnotes excluding those in tables and figures shall c3331 be considered as requirements of the standard.

Combining values from the two systems may result in non-conformance with the standard. Concrete atsm, consisting of sand and gravel, represent the grain skeleton of the concrete.

Fine aggregate shall be free of injurious amounts of organic impurities. Such as barytes, iron ore, steel granulate for heavy concrete e. Coarse aggregate may consist of crushed ore, crushed stone, or synthetic products, or combinations or mixtures thereof.

ASTM C Lightweight Aggregates for Concrete Masonry Units | CTLGroup

Historical Version s – view previous versions of standard. Material round or crushed e.

Important terms from the standard with additional notes: Coarse aggregate shall consist of f331, crushed gravel, crushed stone, c3331 blast furnace slag, or crushed hydraulic-cement concrete, or a combination thereof. Recycled aggregate Aggregate made from mechanically processed inorganic material previously used as a building material i. Coarse and fine normal weight aggregates.

Aggregates can occur naturally fluvial or glacialindustrially produced like lightweight aggregates as well as recycled aggregates. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size. Aggregate Mix Aggregate consisting of a mixture of coarse and fine aggregates sand.

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

Synthetic aggregates such as iron, steel, ferrophosphorus and boron frit or other boron compounds see Descriptive Nomenclature C Fine aggregate subjected to five cycles of the soundness test shall have a required weighted average loss.

Fine aggregate shall consist of natural sand, manufactured sand, or a combination thereof. 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.


ASTM C33 Standard Specification for Concrete Aggregates defines the requirements for grading and quality of fine and coarse aggregate for use in concrete. Link to Active This link will always route to the current Active version of the standard. Optimum use of the aggregate size and quality wstm the concrete quality. From crushed old concrete etc.

Granulometric composition Particle size distribution, expressed as the passing atsm in astn by weight through a defined number of sieves.

This abstract is a brief summary of the referenced standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. 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. The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material.

Lightweight aggregates shall be tested, and should not contain excessive amounts of deleterious substances; and should conform to the specified values of organic impurities, aggregate staining, aggregate loss of ignition, clay lumps and friable particles, loose bulk density, compressive strength, drying shrinkage, pop-outs, and resistance to freezing and thawing. Coarse aggregate Name description for larger size fractions with D not less than 4 mm and d not less than 2 mm.

The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material.