ASTM C1097-95
(Specification)Standard Specification for Hydrated Lime for Use in Asphaltic-Concrete Mixtures
Standard Specification for Hydrated Lime for Use in Asphaltic-Concrete Mixtures
SCOPE
1.1 This specification covers high calcium, dolomitic and magnesian-hydrated lime for use in asphaltic/concrete mixtures.
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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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1097 – 95
Standard Specification for
Hydrated Lime for Use in Asphaltic-Concrete Mixtures
This standard is issued under the fixed designation C 1097; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Chemical Requirements
1.1 This specification covers high calcium, dolomitic and 3.1 Unless otherwise specified, for definitions of terms used
magnesian-hydrated lime for use in asphaltic/concrete mix- in this specification, refer to Terminology C 51.
tures. 3.2 Hydrated lime for use in bituminous paving mixtures
shall conform to the following chemical composition:
NOTE 1—Hydrated lime, either calcitic, dolomitic, or magnesian, im-
Calcium and Magnesium Oxides (on an LOI-free basis, 90.0
proves bonding of bitumen and aggregates which reduces susceptibility to
minimum % )
moisture damage, reduces age hardening by chemically stabilizing polar
Carbon Dioxide (taken at point of manufacture, maximum % 5.0
compounds found in asphalts, and increases initial stiffness of asphalt
)
mixtures.
Unhydrated Calcium and Magnesium Oxides (maximum% ) 5.0
NOTE 2—No attempt is made to present requirements for any by- Free Moisture of Dry Hydrates (taken at point of manufac- 2.0
ture, maximum %)
product lime.
1.2 This standard does not purport to address the safety
4. Physical Requirements
concerns associated with its use. It is the responsibility of the
4.1 Hydrated lime, either dry or slurry form, shall not have
user of this standard to establish appropriate safety and health
more than 3.0 % retained on a No. 30 (590 microns) sieve and
practices and determine the applicability of regulatory limita-
not more than 30 % retained on a No. 200 (74 microns) sieve.
tions prior to use.
5. Test Method
2. Referenced Documents
5.1 The chemical analysis of the hydrated lime shall be
2.1 ASTM Standards:
determined in accordance with Test Methods C 25.
C 25 Test Methods of Chemical Analysis of Limestone,
5.2 The fineness of hydrated lime shall be determined in
Quicklime, and Hydrated Lime
accordance
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