ASTM C188-95
(Test Method)Standard Test Method for Density of Hydraulic Cement
Standard Test Method for Density of Hydraulic Cement
SCOPE
1.1 This test method covers determination of the density of hydraulic cement. Its particular usefulness is in connection with the design and control of concrete mixtures.
1.2 The density of hydraulic cement is defined as the mass of a unit volume of the solids.
1.3 The values stated in SI units are to be regarded as the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, 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.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
American Association State
Designation: C 188 – 95
Highway and Transportation Officials Standard
AASHTO No.: T133
Standard Test Method for
Density of Hydraulic Cement
This standard is issued under the fixed designation C 188; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This test method covers determination of the density of
hydraulic cement. Its particular usefulness is in connection
with the design and control of concrete mixtures.
1.2 The density of hydraulic cement is defined as the mass
of a unit volume of the solids.
1.3 The values stated in SI units are to be regarded as the
standard.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
C 114 Test Methods for Chemical Analysis of Hydraulic
Cement
C 670 Practice for Preparing Precision and Bias Statements
for Test Methods for Construction Materials
3. Apparatus
3.1 Le Chatelier flask—The standard flask which is circular
in cross section with shape and dimensions conforming essen-
tially to Fig. 1 (Note 1). The requirements in regard to
NOTE 1—Variations of a few millimetres in such dimensions as total
tolerance, inscription and length, spacing, and uniformity of
height of flask, diameter of base, etc., are to be expected and will not be
graduation will be rigidly observed. There shall be a space of
considered sufficient cause for rejection. The dimensions of the flask
at least 10 mm between the highest graduation mark and the
shown in Fig. 1 apply only to new flasks and not to flasks in use which
lowest point of grinding for the glass stopper. meet the other requirements of this test method.
FIG. 1 Le Chatelier Flask for Density Test
3.1.1 The material of construction shall be best quality
glass, transparent and free of striae. The glass shall be
chemically resistant and shall have small thermal hysteresis.
3.1.2 The neck shall be graduated from 0 to 1 mL and from
The flasks shall be thoroughly annealed before being gradu-
18 to 24 mL in 0.1-mL graduations. The error of any indicated
ated. They shall be of sufficient thickness to ensure reasonable
capacity shall not be greater than 0.05 mL.
resistance to breakage.
3.1.3 Each flask shall bear a permanent identification num-
ber and the stopper, if not interchangeably ground, shall bear
the same number. Interchangeable ground-glass parts shall be
This test method is under the jurisdiction of ASTM Committee C-1 on Cement,
and is the direct responsibility of Subcommittee C01.25 on Fineness.
marked on both members with the standard-taper symbol,
Current edition approved Sept. 10, 1995. Published November 1995. Originally
followed by the size designation. The standard temperature
e1
published as C 188 – 44. Last previous edition C 188 – 89(1995) .
shall be indicated, and the unit of capacity shall be shown by
Annual Book of ASTM Standards, Vol 04.01.
Annual Book of ASTM Standards, Vol 04.02. the letters “mL” placed above the highest graduation mark.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C188–95
3.2 Kerosine, free of water, or naphtha, having a density graduations. Take the final reading after the flask has been
greater than 0.73 g/mL at 23 6 2° C shall be used in the density immersed in the water bath in accordance with 4.4.
determination. 4.4 Immerse the flask in a constant-temperature water bath
3.3 The use of alternative equipment or methods for deter- for sufficient periods of time in order to avoid flasktemperature
mining density is permitted provided that a single operator can variations greater than 0.2°C between the initial and the final
obtain results within6 0.03 Mg/m of the results obtained readings.
using the flask method.
5. Calculation
NOTE 1—The design is intended to ensure complete drainage of the
5.1 The difference between the first and the final readings
flask when emptied, and stability
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.