ASTM C206-03

Standard Specification for Finishing Hydrated Lime

ABSTRACT
This specification covers two types of finishing hydrated lime that are suitable for use in the scratch, brown, and finish coats of plaster, for stucco, for mortar, and as an addition to Portland-cement concrete. The two types of lime are Type N and Type S. Finishing hydrated lime shall show no pops or pits. Chemical composition shall conform to the required contents of calcium and magnesium oxides, carbon dioxide, and unhydrated oxides. The plasticity figure for the lime is specified. The following test methods shall be performed: chemical analysis and physical tests.
SCOPE
1.1 This specification covers two types of finishing hydrated lime that are suitable for use in the scratch, brown, and finish coats of plaster, for stucco, for mortar, and as an addition to portland-cement concrete. The two types of lime sold under this specification shall be designated as follows:
1.1.1 Type N—Normal hydrated lime for finishing purposes, and
1.1.2 Type S—Special hydrated lime for finishing purposes.
Note 1—Type N, normal finishing hydrated lime, is differentiated from Type S, special finishing hydrated lime, in that no limitation on the amount of unhydrated oxides is specified for Type N hydrate, and the plasticity requirement for Type N hydrate shall be determined after soaking for 16 to 24 h.
Note 2—For lime putty, refer to Specification C 1489.

General Information

• Status: Historical
• Publication Date: 09-May-2003
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C07 - Lime and Limestone
• Drafting Committee: C07.02 - Specifications and Guidelines

Relations

• Replaces: ASTM C206-84(1997) - Standard Specification for Finishing Hydrated Lime
• Effective Date: 10-May-2003
• Replaced By: ASTM C206-03(2009) - Standard Specification for Finishing Hydrated Lime
• Effective Date: 01-Dec-2009
• Referred By: ASTM C842-05(2021) - Standard Specification for Application of Interior Gypsum Plaster
• Effective Date: 10-May-2003
• Referred By: ASTM C1489-15(2022) - Standard Specification for Lime Putty for Structural Purposes
• Effective Date: 10-May-2003
• Referred By: ASTM E1266-20 - Standard Practice for Processing Mixtures of Lime, Fly Ash, and Heavy Metal Wastes in Structural Fills and Other Construction Applications
• Effective Date: 10-May-2003
• Referred By: ASTM C926-23 - Standard Specification for Application of Portland Cement-Based Plaster
• Effective Date: 10-May-2003
• Referred By: ASTM C207-18 - Standard Specification for Hydrated Lime for Masonry Purposes
• Effective Date: 10-May-2003

Standards Content (Sample)

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: C206 – 03
Standard Specification for
1
Finishing Hydrated Lime
This standard is issued under the fixed designation C206; 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 Department of Defense.
1. Scope 3. Terminology
1.1 This specification covers two types of finishing hydrated 3.1 Definitions—For definitions of terms relating to hy-
lime that are suitable for use in the scratch, brown, and finish drated lime, refer to Terminology C51.
coats of plaster, for stucco, for mortar, and as an addition to
4. Chemical Composition
portland-cement concrete. The two types of lime sold under
this specification shall be designated as follows: 4.1 Hydrated lime for finishing purposes shall conform to
the following requirements as to chemical composition:
1.1.1 Type N—Normal hydrated lime for finishing purposes,
and
Type N Type S
Calcium and magnesium oxides (nonvolatile basis), 95 95
1.1.2 Type S—Special hydrated lime for finishing purposes.
min, %
Carbon dioxide (as-received basis), max, %
NOTE 1—Type N, normal finishing hydrated lime, is differentiated from
If sample is taken at the place of manufacture 5 5
TypeS,specialfinishinghydratedlime,inthatnolimitationontheamount
If sample is taken at any other place 7 7
of unhydrated oxides is specified for Type N hydrate, and the plasticity
Unhydrated oxides (as-received basis), max, % . 8
requirement for Type N hydrate shall be determined after soaking for 16
to 24 h.
5. Residue
NOTE 2—For lime putty, refer to Specification C1489.
5.1 The percentage residue of finishing hydrated lime shall
conform to the following requirements:
2. Referenced Documents
2 Residue retained on No. 30 (600-µm) sieve, max, % 0.5
2.1 ASTM Standards:
Residue retained on No. 200 (75-µm) sieve, max, % 15
C25 Test Methods for Chemical Analysis of Limestone,
6. Popping and Pitting
Quicklime, and Hydrated Lime
C50 Practice for Sampling, Sample Preparation, Packaging,
6.1 Finishing hydrated lime shall show no pops or pits when
and Marking of Lime and Limestone Products
tested in accordance with the method prescribed in 10.1.2.
C51 Terminology Relating to Lime and Limestone (as used
by the Industry) 7. Plasticity
C110 Test Methods for Physical Testing of Quicklime,
7.1 The putty made from Type N, normal finishing hydrated
Hydrated Lime, and Limestone
lime, shall have a plasticity figure of not less than 200 when
C842 Specification for Application of Interior Gypsum
soaked for a period of not less than 16 h nor more than 24 h.
Plaster
7.2 The putty made from Type S, special finishing hydrated
C1489 Specification for Lime Putty for Structural Purposes
lime, shall have a plasticity figure of n
...