ASTM C51-21
(Terminology)Standard Terminology Relating to Lime and Limestone (as Used by the Industry)
Standard Terminology Relating to Lime and Limestone (as Used by the Industry)
SCOPE
1.1 This terminology refers to the terms relating to lime and limestone products as used by the industry.
1.2 Where appropriate, the various terms defined below should be prefixed with one or other of the adjectives “high-calcium,” “magnesian,” or “dolomitic.” (Examples: dolomitic quicklime; high-calcium hydraulic hydrated lime; magnesian or dolomitic limestone.)
1.3 The composition of a limestone should be given in terms of a percentage of the carbonates present. In limestone of interest to the lime industry, it is usually assumed that the material consists almost entirely of carbonates. Where this assumption is not valid, the percentage of noncarbonate material should be determined, and the composition expressed in terms of the carbonate material present.
1.4 For specific application of lime or a limestone product, see the appropriate ASTM specification.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Buy Standard
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C51 − 21
Standard Terminology Relating to
1
Lime and Limestone (as Used by the Industry)
This standard is issued under the fixed designation C51; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* C602 Specification for Agricultural Liming Materials
C1707 Specification for Pozzolanic Hydraulic Lime for
1.1 This terminology refers to the terms relating to lime and
Structural Purposes
limestone products as used by the industry.
1.2 Where appropriate, the various terms defined below
3. Terminology
should be prefixed with one or other of the adjectives “high-
calcium,” “magnesian,” or “dolomitic.” (Examples: dolomitic alkaline earth solutions (AES), n—an aqueous solution of the
oxide or hydroxide of an element of group IIa in the periodic
quicklime; high-calcium hydraulic hydrated lime; magnesian
or dolomitic limestone.) table, such as calcium or magnesium, which can be strongly
alkaline.
1.3 Thecompositionofalimestoneshouldbegiveninterms
of a percentage of the carbonates present. In limestone of
available lime index, n—those constituents of a lime which
interest to the lime industry, it is usually assumed that the
enter into a desired reaction under the conditions of a
material consists almost entirely of carbonates. Where this
specific method or process.
assumption is not valid, the percentage of noncarbonate mate-
by-product lime, n—a variety of calcium or calcium/
rial should be determined, and the composition expressed in
magnesium compounds, or both, that are usable for specific
terms of the carbonate material present.
applications but generally do not meet one or more specifi-
1.4 For specific application of lime or a limestone product,
cations required of primary lime products.
see the appropriate ASTM specification.
DISCUSSION—Examples include lime kiln dust and lime hydrator
1.5 This international standard was developed in accor-
rejects. It is advised that the specific compositions, physical properties,
performance characteristics, and anticipated variabilities of such mate-
dance with internationally recognized principles on standard-
rials be evaluated for the service intended.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
calcareous, adj—originating from predominately calcium car-
mendations issued by the World Trade Organization Technical
bonate or one of its derivative forms.
Barriers to Trade (TBT) Committee.
calcia, n—the chemical compound calcium oxide (CaO).
2. Referenced Documents
cement-lime mortar, n—cement-lime mortar primarily con-
2
2.1 ASTM Standards:
sists of hydraulic cement, hydrated lime or lime putty,
C125 Terminology Relating to Concrete and Concrete Ag-
mason’s sand and water.
gregates
DISCUSSION—These mortars can be specified by proportions or
C207 Specification for Hydrated Lime for Masonry Pur-
properties indicated in Specification C270.
poses
dead burned dolomite, n—dolomitic limestone that has been
C270 Specification for Mortar for Unit Masonry
heated with or without additives to a temperature sufficiently
high and for a long enough time to decompose the carbonate
1 structure so as to form calcium oxide and periclase in a
This terminology is under the jurisdiction of ASTM Committee C07 on Lime
and Limestone and is the direct responsibility of Subcommittee C07.08 on Editorial matrix that provides resistance to subsequent hydration and
and Terminology
recombination with carbon dioxide.
Current edition approved June 15, 2021. Published July 2021. Originally
approved in 1922. Last previous edition approved in 2020 as C51 – 20. DOI:
dolomitic, adj—indicates the presence of 35 to 46 % magne-
10.1520/C0051-21.
sium carbonate (MgCO ) in the limestone from which the
2
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM material was formed.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. dolomitic limestone, n—see limestone.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C51−21
fluxing lime,n—a term referring to quicklime used as
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C51 − 20 C51 − 21
Standard Terminology Relating to
1
Lime and Limestone (as Used by the Industry)
This standard is issued under the fixed designation C51; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This terminology refers to the terms relating to lime and limestone products as used by the industry.
1.2 Where appropriate, the various terms defined below should be prefixed with one or other of the adjectives “high-calcium,”
“magnesian,” or “dolomitic.” (Examples: dolomitic quicklime; high-calcium hydraulic hydrated lime; magnesian or dolomitic
limestone.)
1.3 The composition of a limestone should be given in terms of a percentage of the carbonates present. In limestone of interest
to the lime industry, it is usually assumed that the material consists almost entirely of carbonates. Where this assumption is not
valid, the percentage of noncarbonate material should be determined, and the composition expressed in terms of the carbonate
material present.
1.4 For specific application of lime or a limestone product, see the appropriate ASTM specification.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C125 Terminology Relating to Concrete and Concrete Aggregates
C207 Specification for Hydrated Lime for Masonry Purposes
C270 Specification for Mortar for Unit Masonry
C602 Specification for Agricultural Liming Materials
C1707 Specification for Pozzolanic Hydraulic Lime for Structural Purposes
3. Terminology
alkaline earth solutions (AES), n—an aqueous solution of the oxide or hydroxide of an element of group IIa in the periodic
table, such as calcium or magnesium, which can be strongly alkaline.
1
This terminology is under the jurisdiction of ASTM Committee C07 on Lime and Limestone and is the direct responsibility of Subcommittee C07.08 on Editorial and
Terminology
Current edition approved Aug. 1, 2020June 15, 2021. Published August 2020July 2021. Originally approved in 1922. Last previous edition approved in 20182020 as
C51 – 18.C51 – 20. DOI: 10.1520/C0051-20.10.1520/C0051-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C51 − 21
available lime index, n—those constituents of a lime which enter into a desired reaction under the conditions of a specific
method or process.
by-product lime, n—a variety of calcium or calcium/magnesium compounds, or both, that are usable for specific applications
but generally do not meet one or more specifications required of primary lime products.
DISCUSSION—
Examples include lime kiln dust and lime hydrator rejects. It is advised that the specific compositions, physical properties, performance characteristics,
and anticipated variabilities of such materials be evaluated for the service intended.
calcareous, adj—originating from predominately calcium carbonate or one of its derivative forms.
calcia, n—the chemical compound calcium oxide (CaO).
calcined pozzolans, n—materials that are produced by calcination of natural siliceous or alumino-siliceous earths, such
calcination being for the purpose of activation of pozzolanic properties.
cement-lime mortar, n—cement-lime mortar primarily consists of hydraulic cement, hydrated lime or lime putty, mason’s sand
and water.
DISCUSSION—
These mortars can be specified by proportions or properties indicated in Specification C270.
dead burned dolomite, n—dolomitic limestone that has been heated with or without additives to a temperature sufficiently high
and for a long enough time to decompose the carbonate struct
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C51 − 21
Standard Terminology Relating to
1
Lime and Limestone (as Used by the Industry)
This standard is issued under the fixed designation C51; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* C602 Specification for Agricultural Liming Materials
C1707 Specification for Pozzolanic Hydraulic Lime for
1.1 This terminology refers to the terms relating to lime and
Structural Purposes
limestone products as used by the industry.
1.2 Where appropriate, the various terms defined below
3. Terminology
should be prefixed with one or other of the adjectives “high-
alkaline earth solutions (AES), n—an aqueous solution of the
calcium,” “magnesian,” or “dolomitic.” (Examples: dolomitic
quicklime; high-calcium hydraulic hydrated lime; magnesian oxide or hydroxide of an element of group IIa in the periodic
table, such as calcium or magnesium, which can be strongly
or dolomitic limestone.)
alkaline.
1.3 The composition of a limestone should be given in terms
of a percentage of the carbonates present. In limestone of
available lime index, n—those constituents of a lime which
interest to the lime industry, it is usually assumed that the
enter into a desired reaction under the conditions of a
material consists almost entirely of carbonates. Where this
specific method or process.
assumption is not valid, the percentage of noncarbonate mate-
by-product lime, n—a variety of calcium or calcium/
rial should be determined, and the composition expressed in
magnesium compounds, or both, that are usable for specific
terms of the carbonate material present.
applications but generally do not meet one or more specifi-
1.4 For specific application of lime or a limestone product,
cations required of primary lime products.
see the appropriate ASTM specification.
DISCUSSION—Examples include lime kiln dust and lime hydrator
1.5 This international standard was developed in accor-
rejects. It is advised that the specific compositions, physical properties,
dance with internationally recognized principles on standard- performance characteristics, and anticipated variabilities of such mate-
rials be evaluated for the service intended.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
calcareous, adj—originating from predominately calcium car-
mendations issued by the World Trade Organization Technical
bonate or one of its derivative forms.
Barriers to Trade (TBT) Committee.
calcia, n—the chemical compound calcium oxide (CaO).
2. Referenced Documents
cement-lime mortar, n—cement-lime mortar primarily con-
2
2.1 ASTM Standards:
sists of hydraulic cement, hydrated lime or lime putty,
C125 Terminology Relating to Concrete and Concrete Ag-
mason’s sand and water.
gregates
DISCUSSION—These mortars can be specified by proportions or
C207 Specification for Hydrated Lime for Masonry Pur-
properties indicated in Specification C270.
poses
dead burned dolomite, n—dolomitic limestone that has been
C270 Specification for Mortar for Unit Masonry
heated with or without additives to a temperature sufficiently
high and for a long enough time to decompose the carbonate
1 structure so as to form calcium oxide and periclase in a
This terminology is under the jurisdiction of ASTM Committee C07 on Lime
and Limestone and is the direct responsibility of Subcommittee C07.08 on Editorial matrix that provides resistance to subsequent hydration and
and Terminology
recombination with carbon dioxide.
Current edition approved June 15, 2021. Published July 2021. Originally
approved in 1922. Last previous edition approved in 2020 as C51 – 20. DOI:
dolomitic, adj—indicates the presence of 35 to 46 % magne-
10.1520/C0051-21.
2 sium carbonate (MgCO ) in the limestone from which the
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
material was formed.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. dolomitic limestone, n—see limestone.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C51 − 21
fluxing lime, n—a term referring to quicklime used as an agent lime, chemical, n—a quicklime or hydrated lime whose
in the manufacture of steel or glass. chemical and physical cha
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.