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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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 xstm density, compressive strength, drying shrinkage, pop-outs, and resistance to freezing and thawing.
Two general types of lightweight aggregates are covered by this specification: Link to Active This link will always route to the current Active version of the standard. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.
Fine aggregate shall consist of natural sand, manufactured sand, or a combination thereof.
ASTM C Certification :: Masonry :: Norlite Lightweight Aggregate
Passing fraction, particle size distribution curves The particle size is expressed by the hole size of the aatm sieves just passed by the particle concerned.
The particle size is expressed by the hole size of the test sieves just passed by the particle concerned.
Important terms from the standard with additional notes: The aggregates shall not contain excessive amounts of deleterious substances, as determined by organic impurities, staining, and loss on ignition tests. From crushed old concrete etc.
Concrete Aggregates | Sika AG
Some values have only SI units because the inch-pound equivalents are not used in practice. Recycled aggregate Aggregate made from mechanically processed inorganic material previously used as a building material i.
All cavities within this skeleton have to be filled with binder paste as complete as possible. In C3331 aggregates are defined in standard EN From natural deposits, e.
Aggregates can occur naturally fluvial or glacialindustrially produced like lightweight aggregates as well as recycled aggregates. For high-quality concrete they are cleaned and graded in industrial facilities by mechanical processes such as crushing, washing, screening and mixing together.
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.
Synthetic aggregates such as iron, steel, ferrophosphorus and boron frit or other boron compounds see Descriptive Nomenclature C These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the standard. These include aggregates that contain or consist predominately of materials such as barite, magnetite, hematite, ilmenite, and serpentine.
Such as expanded clay, pumice, polystyrene for lightweight concrete, insulating concretes. Sieve size is identified by its standard designation in Specification E Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Fine aggregate subjected to five cycles of the soundness test shall have a required weighted average loss.
ASTM C 331—05 Specification for Lightweight Aggregates for Concrete Masonry Units (PDF Download)
Coarse aggregate shall consist of gravel, crushed gravel, crushed stone, air-cooled blast furnace slag, or crushed hydraulic-cement concrete, or a combination thereof.
Historical Version s – view previous versions of standard. 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.
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. aastm
Lightweight aggregates for structural concrete Lightweight asm for masonry concrete Lightweight aggregates for insulating concrete. The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material. Three general types of lightweight aggregates are covered by this specification: Natural mineral aggregates of either high density or high fixed water content, or both.