ASTM C1097-07(2012)
(Specification)Standard Specification for Hydrated Lime for Use in Asphalt Cement or Bituminous Pavements
Standard Specification for Hydrated Lime for Use in Asphalt Cement or Bituminous Pavements
ABSTRACT
This specification covers high calcium, dolomitic and magnesian-hydrated lime for use in asphalt cement or bituminous pavements. Hydrated lime, either dry or slurry form, shall conform to the chemical composition requirements for calcium and magnesium oxides, carbon dioxide, unhydrated calcium and magnesium oxides, and free moisture of dry hydrates as shall be determined by chemical analysis. The particle size of hydrated lime shall also be determined using a standardized spray nozzle and pressure gauge.
SCOPE
1.1 This specification covers high calcium, dolomitic and magnesian-hydrated lime for use in asphalt cement or bituminous pavement. Note 1—Hydrated lime, either calcitic, dolomitic, or magnesian, improves bonding of bitumen and aggregates which reduces susceptibility to moisture damage, reduces age hardening by chemically stabilizing polar compounds found in asphalts, and increases initial stiffness of asphalt mixtures.Note 2—No attempt is made to present requirements for any by-product lime.
1.2 This standard does not purport to address the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:C1097 −07(Reapproved 2012)
Standard Specification for
Hydrated Lime for Use in Asphalt Cement or Bituminous
1
Pavements
This standard is issued under the fixed designation C1097; 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.
1. Scope 3. Terminology
1.1 This specification covers high calcium, dolomitic and
3.1 For definitions of terms used in this specification, refer
magnesian-hydrated lime for use in asphalt cement or bitumi-
to Terminology C51 or Terminology D8.
nous pavement.
4. Chemical Requirements
NOTE 1—Hydrated lime, either calcitic, dolomitic, or magnesian,
improves bonding of bitumen and aggregates which reduces susceptibility
4.1 Hydrated lime for use in bituminous paving mixtures
to moisture damage, reduces age hardening by chemically stabilizing
shall conform to the following chemical composition:
polar compounds found in asphalts, and increases initial stiffness of
Calcium and Magnesium Oxides (on an LOI-free basis, 90.0
asphalt mixtures.
minimum % )
NOTE 2—No attempt is made to present requirements for any by-
Carbon Dioxide (taken at point of manufacture, 5.0
product lime.
maximum % )
1.2 This standard does not purport to address the safety
Unhydrated Calcium and Magnesium Oxides (maximum% ) 5.0
Free Moisture of Dry Hydrates (taken at point of 2.0
concerns associated with its use. It is the responsibility of the
manufacture, maximum %)
user of this standard to establish appropriate safety and health
4.2 The chemical analysis of the hydrated lime shall be
practices and determine the applicability of regulatory limita-
determined in accordance with Test Methods C25.
tions prior to use.
2. Referenced Documents
5. Physical Requirements
2
2.1 ASTM Standards:
5.1 Hydrated lime, either dry or slurry form, shall not have
C25 Test Methods for Chemical Analysis of Limestone,
more than 3.0 % retained on a No. 30 (600 µm) sieve and not
Quicklime, and Hydrated Lime
more than 30 % retained on a No. 200 (75 µm) sieve.
C50 Practice for Sampling, Sample Preparation, Packaging,
NOTE 3—Specification D242 also contains physical specifications for
and Marking of Lime and Limestone Products
hydratedlime.SpecificationD242includesfoursizegradations,expressed
C51 Terminology Relating to Lime and Limestone (as used
as percent passing the sieve. For the two size gradations included in both
by the Industry)
Specification D242 and Specification C1097, the specifications are the
same.
C110 Test Methods for Physical Testing of Quicklime,
Hydrated Lime, and Limestone
5.2 The particle size of hydrated lime shall be determined in
D8 Terminology Relating to Materials for Ro
...
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