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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Fine aggregate sand Designation for smaller size fractions with D not greater than 4 mm. Such as expanded clay, pumice, polystyrene for lightweight concrete, insulating concretes. 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. For high-quality concrete aetm are cleaned and graded in industrial facilities by mechanical processes such as crushing, washing, screening and mixing together.
Natural mineral aggregates of either high density or high fixed water content, or both. 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.
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, asym lumps and friable particles, loose bulk density, compressive strength, drying shrinkage, pop-outs, and resistance to freezing and thawing. Fines Proportion of an aggregate passing the 0.
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 standard is very comprehensive and to give more details than in the list below would be outside the scope of this document.
Such as quartz, carborundum for granolithic concrete surfacing. The aggregates shall not contain excessive amounts of deleterious substances, as determined by organic impurities, staining, and loss on ignition tests.
Lightweight aggregates for structural concrete Lightweight aggregates for masonry concrete Lightweight aggregates for insulating concrete. Coarse aggregate may consist of crushed ore, crushed stone, or synthetic products, or combinations or mixtures thereof.
Two general types of lightweight aggregates are covered by this specification: Three general types of lightweight aggregates are covered by this specification: All cavities within this skeleton have to be filled with binder paste as complete as possible.
The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material. Fine aggregate for use in concrete that will be asstm 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.
These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the standard. Aggregate Mix Aggregate consisting of a mixture of coarse and fine aggregates sand.
The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.
Important terms from the standard with additional notes: From crushed old concrete etc. Sieve size is identified by its standard designation in Specification E Optimum use of the aggregate size astn quality improves the concrete quality.
Link to Active This link will always route to the current Active version of the standard. In Asstm aggregates are defined in standard EN Some values have only SI units because the inch-pound equivalents are not used in practice. ASTM C33 Standard Specification for Concrete Aggregates defines the requirements for grading and quality of fine and coarse aggregate for use in concrete.
Aggregates covered by this specification include: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Wstm composition Particle size distribution, expressed as the passing fraction in percent by weight through a defined number of sieves. This abstract is a brief summary of the referenced 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.
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. Such as barytes, iron ore, steel granulate for heavy concrete e. Fine aggregate subjected to five cycles of the soundness test shall have a required weighted average loss.
V331 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. 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.