ASTM C331 PDF

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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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.

This abstract is a brief summary of the referenced standard. Fine aggregate consisting of natural or manufactured sand including high-density minerals. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the ast. 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.

Concrete Aggregates

These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the standard. Fine aggregate sand Designation for smaller size fractions with D not greater than 4 mm. Link to Active This link will always route to the current Active version of the standard. Fine aggregate shall consist of natural sand, manufactured sand, or a combination thereof.

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.

Aggregate Mix Aggregate consisting of a mixture of coarse and fine aggregates sand. This specification covers lightweight aggregates intended for use in concrete masonry units when a prime consideration is to reduce the density of the units. This standard is very comprehensive and to give more details than in the list below would be outside the scope of this document.

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Lightweight aggregates for structural concrete Lightweight aggregates for masonry concrete Lightweight aggregates for insulating concrete.

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The alternative designation given in parentheses is for information only and does not represent a different standard sieve size. All cavities within this skeleton have to be filled with binder paste as complete as possible. The aggregates shall not contain excessive amounts asrm deleterious substances, as determined by organic impurities, staining, and loss on ignition tests.

Optimum use of the aggregate size and quality improves the concrete quality. Coarse aggregate shall consist of gravel, crushed gravel, crushed stone, air-cooled blast furnace slag, or crushed hydraulic-cement concrete, or a combination thereof.

Such as barytes, iron ore, steel granulate for heavy concrete 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. Important terms from the standard with additional notes: Coarse aggregate may consist of crushed ore, crushed stone, or synthetic products, or combinations or mixtures thereof.

Such as expanded clay, pumice, polystyrene for lightweight concrete, insulating concretes. In Europe aggregates are defined in standard EN Concrete aggregates, consisting of sand and gravel, represent the grain skeleton of the concrete. Coarse and fine normal weight aggregates.

From crushed old concrete etc. The particle size is expressed by the hole size of the test sieves just passed by the particle concerned. Filler rock flour Aggregate predominantly passing the 0. 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.

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Granulometric composition Particle size distribution, expressed as the passing fraction in percent by weight through a defined number of sieves. Synthetic aggregates such as iron, steel, ferrophosphorus and boron frit or other boron compounds see Descriptive Nomenclature C Some values have only SI units because the inch-pound equivalents are not used in practice.

Sieve size is identified by its standard designation in Specification E ASTM C33 Standard Specification for Concrete Aggregates defines the requirements for grading and quality of fine and coarse aggregate for use in concrete.

Natural mineral aggregates of either high density or high fixed water content, or both. Fine aggregate subjected to five cycles of the soundness test shall have a required weighted average loss.

Concrete Aggregates | Sika AG

An aggregate mix can be produced without prior separation into coarse and fine aggregates or by combining coarse and fine aggregates sand. Passing fraction, particle size distribution asfm The particle size is expressed by the hole size of the test sieves just passed by the particle concerned.

Aggregates covered by this specification include: For high-quality concrete they are cleaned and graded in industrial facilities by mechanical processes such as crushing, washing, screening astk mixing together.

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