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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The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material. 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. This standard is very comprehensive and to give more details than in the list below would be outside the scope of this document.
The particle size is expressed by the hole size of the test sieves just passed by the particle concerned. Link to Active This link will always route to the current Active version of the standard. From natural deposits, e. 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. Aggregates covered by this specification include: Two 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.
For high-quality concrete they are cleaned and graded in industrial facilities by mechanical processes such as crushing, washing, screening and mixing together. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.
Lightweight aggregates for structural concrete Lightweight aggregates for masonry concrete Lightweight aggregates for insulating concrete.
Aggregate Mix Aggregate consisting of a mixture of coarse and fine aggregates sand. ASTM C33 Standard Specification for Concrete Aggregates defines the requirements for grading and quality of fine and coarse aggregate for use in concrete.
Granulometric composition Particle size distribution, expressed as the passing fraction in percent by weight through a defined number of sieves.
Such as quartz, carborundum for granolithic concrete surfacing. Combining values from the two systems may result in non-conformance with 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.
Fines C313 of an aggregate passing the 0. Fine asfm shall be free of injurious amounts of organic impurities. The aggregates shall not contain excessive amounts of deleterious substances, as determined by organic impurities, staining, and loss on ignition tests.
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Important terms from the standard with additional notes: Historical Version s – view previous versions of standard. 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.
Recycled aggregate Aggregate made from mechanically processed inorganic material previously used as a building material i. 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.
In Europe aggregates are defined in standard EN Coarse aggregate shall consist of gravel, crushed gravel, crushed stone, air-cooled blast furnace slag, or crushed hydraulic-cement concrete, or a combination thereof. Passing fraction, particle size distribution curves The particle size is expressed by the hole size of the test sieves just passed by the particle concerned. Fine aggregate consisting of awtm or manufactured sand including high-density minerals.
This abstract is a brief summary of the referenced standard. Coarse and fine normal weight aggregates.
Capitol Concrete Products, Inc. • Suggested Specifications
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.
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. An aggregate mix can be produced without prior separation into coarse and fine aggregates or by combining coarse and fine aggregates sand. Fine aggregate subjected to five cycles of the soundness test shall have a required weighted average loss. 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.
From crushed old concrete etc. Material round or crushed e. Sieve size is identified by its standard designation in Specification E Concrete aggregates, consisting of sand and gravel, represent the grain skeleton of the concrete. Synthetic aggregates such as iron, steel, ferrophosphorus and boron frit or other boron compounds see Descriptive Nomenclature C Natural mineral aggregates of either high density or high fixed water content, or both. 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.
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. Coarse aggregate Name description for larger size fractions with D not less than 4 mm and d not less than 2 mm.
Some values have only SI units because the inch-pound equivalents are not used in practice. These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the standard.