ASTM C141/C141M-14(2022)

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: C141/C141M −14 (Reapproved 2022)
Standard Specification for
Hydrated Hydraulic Lime for Structural Purposes
This standard is issued under the fixed designation C141/C141M; 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 C51 Terminology Relating to Lime and Limestone (as Used
by the Industry)
1.1 This specification covers hydrated hydraulic lime for
C109/C109M Test Method for Compressive Strength of
structural purposes.
Hydraulic Cement Mortars (Using 2-in. or [50 mm] Cube
1.2 Hydrated hydraulic lime may be used in the scratch or
Specimens)
brown coat of plaster, stucco, mortar, or in portland-cement
C110 Test Methods for Physical Testing of Quicklime,
concrete either as blend, amendment, or admixture.
Hydrated Lime, and Limestone
1.3 The values stated in either SI units or inch-pound units C187 Test Method for Amount of Water Required for Nor-
are to be regarded separately as standard. Within the text, the
mal Consistency of Hydraulic Cement Paste
inch-pound units are shown in brackets. The values stated in
C191 TestMethodsforTimeofSettingofHydraulicCement
each system may not be exact equivalents; therefore, each
by Vicat Needle
system shall be used independently of the other. Combining
C230/C230M Specification for Flow Table for Use in Tests
values from the two systems may result in non-conformance
of Hydraulic Cement
with the standard.
C270 Specification for Mortar for Unit Masonry
C305 Practice for Mechanical Mixing of Hydraulic Cement
1.4 The following precautionary caveat pertains only to the
Pastes and Mortars of Plastic Consistency
test method portion, Section 11 of this specification: This
C778 Specification for Standard Sand
standard does not purport to address all of the safety concerns,
C1271 Test Method for X-ray Spectrometric Analysis of
if any, associated with its use. It is the responsibility of the user
Lime and Limestone
of this standard to establish appropriate safety, health, and
C1301 Test Method for Major and Trace Elements in Lime-
environmental practices and determine the applicability of
stone and Lime by Inductively Coupled Plasma-Atomic
regulatory limitations prior to use.
Emission Spectroscopy (ICP) and Atomic Absorption
1.5 This international standard was developed in accor-
(AA)
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3. Terminology
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3.1 Definitions—For definitions of terms related to this
Barriers to Trade (TBT) Committee.
specification, see Terminology C51.
2. Referenced Documents 3.2 Definitions of Terms Specific to This Standard:
3.2.1 hydrated hydraulic lime, n—the product resulting
2.1 ASTM Standards:
from the slaking of hydraulic quicklime generally to a powder,
C25 Test Methods for Chemical Analysis of Limestone,
without any addition, and with or without grinding. It has the
Quicklime, and Hydrated Lime
property of setting and hardening under water and by reaction
C50 Practice for Sampling, Sample Preparation, Packaging,
of carbon dioxide from the air. The hydraulic properties of this
and Marking of Lime and Limestone Products
materialcomesonlyfromthecompositionoftherawmaterials.
3.2.2 hydraulic quicklime, n—a cementitious product ob-
This specification is under the jurisdiction of ASTM Committee C07 on Lime
tained by calcining argillaceous or siliceous limestone, or a
and Limestone and is the direct responsibility of Subcommittee C07.02 on
Specifications and Guidelines mixture of similar composition to form sufficient free lime to
Current edition approved July 1, 2022. Published July 2022. Originally approved
permit hydration by slaking.
in 1938. Last previous edition approved in 2014 as C141/C141M – 14. DOI:
10.1520/C0141_C0141M-14R22.
3.2.3 reworkability, n—the ability of a material which has
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
setting and hardening properties to be remixed after a given
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
period without significantly compromising the final hardened
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. properties of the material.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C141/C141M − 14 (2022)
3.2.4 period of reworkability, n—the length of time a 22 680 kg [50 000 lb]. If only one sample is taken, it shall
material can be reworked after initial mixing; it shall be weigh at least 4.5 kg [10 lb].
expressed in hours.
10.2 The sample shall be given a preliminary sieving by
being passed through a 850 µm [No. 20] sieve in order to
NOTE 1—Hydrated hydraulic limes have a long working time lasting up
to 24 h. The user should seek advice from the producer as to maximum
thoroughly mix the sample and break up lumps.
working time.
10.3 Samples shall be shipped and stored in airtight, mois-
tureproof containers.
4. Chemical Composition
10.4 The sampling, inspection, rejection, retesting,
4.1 The hydrated hydraulic lime shall conform to the
packaging, and marking shall be conducted in accordance with
following requirements as to chemical composition, calculated
Practice C50.
to the LOI-free basis:
Min Max
Calcium and magnesium oxides (CaO and MgO calcu- 50 75 11. Test Methods:
lated to the LOI-free basis), %
11.1 Chemical Analysis:
Silica (SiO calculated to the LOI-free basis), % 4 20
Iron and aluminum oxides (Fe O and Al O . 7
2 3 2 3
11.1.1 Analyses for chemical composition shall be carried
caculated to the LOI-free basis), %
out in accordance with Test Methods C25, or, for total
Carbon dioxide (CO on an as received basis), % . 16
Available lime (CaO calculated with Test Methods 16 . elemental analysis, Test Methods C1271 or C1301. TheAvail-
C25 – 11, Section 28, Available Lime Index), %
able Lime Index shall be determined in accordance with Test
Methods C25.
5. Fineness
11.2 Fineness:
5.1 The sample shall leave a residue of not more than 0.5 %
11.2.1 Finenessshall bedeterminedbywet sieveanalysisor
on a 600 µm (No. 30) sieve, and not more than 10 % on a
air jet sieving of hydrated lime methods found inTest Methods
75 µm (No. 200) sieve when tested as described in 11.2.
C110.
11.3 Normal Consistency:
6. Time of Setting
11.3.1 DeterminenormalconsistencybytheVicatapparatus
6.1 The neat lime paste mixed to normal consistency shall
in accordance with Test Method C187.
not develop an initial set in less than2has determined by the
Vicat needle method (see 11.4). Final set shall be attained 11.4 Time of Setting:
within 48 h at 100 % RH. 11.4.1 DeterminetimeofsettingbytheVicatneedlemethod
inaccordancewithTestMethodC191.Thetestwillbedoneon
7. Reworkability
a sample kept at 100 % RH. It will only be removed for
measuring.
7.1 Test for reworkability as described in subsection 11.7.1.
The average compressive strength value of the second set of
11.5 Autoclave Expansion:
cubes (set B) shall not be less than 30 % of the first set (setA).
11.5.1 Determine autoclave expansion in accordance with
thesectiononAutoclaveExpansionofHydratedandHydraulic
8. Soundness
Lime of Test Methods C110 – 14 (subsection 9.3, Procedure
8.1 The samples when made, stored, and autoclaved as for ExpansionTesting), with
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