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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ASTM C Certification :: Masonry :: Norlite Lightweight Aggregate

Fine aggregate subjected to five cycles of the soundness test shall have a required weighted average loss. The aggregates shall not contain excessive amounts of deleterious substances, as determined by organic impurities, staining, and loss on ignition tests.

Material round or crushed e. Combining values from the two systems may result in non-conformance with the standard. 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.

Natural mineral aggregates of either high density or high fixed water content, or both. An aggregate mix can be produced without prior separation into coarse and fine aggregates or by combining coarse and fine aggregates sand. Sieve size is identified by its standard designation in Specification E Optimum use of the aggregate size and quality improves the concrete quality.

ASTM C Lightweight Aggregates for Concrete Masonry Units | CTLGroup

Aggregate Mix Aggregate consisting of a mixture of coarse and fine aggregates sand. Lightweight aggregate under test shall meet requirements for clay lumps and friable particles, uniformity of grading, loose bulk density, uniformity of loose zstm density, popouts, resistance to freezing and thawing, and drying shrinkage.


Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. This specification covers lightweight aggregates intended for use in concrete masonry units when a prime consideration is to reduce the density of the units. 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.

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.

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

ASTM C33 Standard Specification for Concrete Aggregates defines the requirements for grading and quality of fine and coarse aggregate for use in concrete. For high-quality concrete they are cleaned and graded in industrial facilities by mechanical processes such as crushing, washing, screening and mixing together.

Such as barytes, iron ore, steel granulate for heavy concrete e. The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material. Fine aggregate shall be free of injurious amounts of organic impurities.

Aggregates can occur naturally fluvial or glacialindustrially produced like lightweight aggregates as well as recycled aggregates. Important terms from the standard with additional notes: From crushed old concrete etc. Aggregates prepared by expanding, pelletizing, or sintering products such as blast-furnace slag, clay, diatomite, fly ash, shale, or slate; and Aggregates prepared by processing natural materials, such as pumice, scoria, or tuff The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material.


Coarse aggregate shall consist of gravel, crushed gravel, crushed stone, air-cooled blast furnace slag, or crushed hydraulic-cement concrete, or a combination thereof.

Coarse aggregate may consist of crushed ore, crushed stone, or synthetic products, or combinations or mixtures thereof. Some values have only SI units because the inch-pound equivalents are not used in practice.

Such as expanded clay, pumice, polystyrene for lightweight concrete, insulating concretes. This standard is very comprehensive and to give more details than in the list below would be outside the scope of this document.

This abstract is a brief summary of the referenced standard. Coarse and fine normal weight aggregates. In Europe awtm are defined in standard EN Fine aggregate consisting of natural or manufactured sand including high-density minerals. Aggregates covered by this specification include: The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.

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. Historical Version s – view previous v331 of standard.

Such as quartz, carborundum for granolithic concrete surfacing.