ASTM C1603-04
(Test Method)Standard Test Method for Measurement of Solids in Water
Standard Test Method for Measurement of Solids in Water
SCOPE
1.1 This test method covers the measurement of the solids content in water for use as mixing water in ready-mixed concrete and the measurement of its density. Solids content is expressed in terms of parts per million (ppm) or in terms of percent by mass of the water sample.
1.2 The values stated in SI units are to be regarded as standard; inch-pound units are shown in parenthesis for information only.
1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of 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 to determine the applicability of regulatory limitations prior to use.
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Designation:C1603–04
Standard Test Method for
Measurement of Solids in Water
This standard is issued under the fixed designation C 1603; 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 3.2 The method provides a means to determine the relation-
ship between the density and solids content of water for
1.1 This test method covers the measurement of the solids
compliance with solids content limits of mixing water such as
content in water for use as mixing water in ready-mixed
in Specification C 1602/C 1602M.
concrete and the measurement of its density. Solids content is
3.3 During production of concrete, the water property mea-
expressed in terms of parts per million (ppm) or in terms of
sured is its density, which can then be used to estimate the
percent by mass of the water sample.
solids content from procedures described in this test method.
1.2 The values stated in SI units are to be regarded as
3.4 To develop a correlation between the density and solids
standard; inch-pound units are shown in parenthesis for infor-
content of water, water samples should be tested that cover the
mation only.
range of solids concentrations anticipated during production.
1.3 The text of this standard references notes and footnotes
that provide explanatory material. These notes and footnotes
4. Apparatus
(excluding those in tables and figures) shall not be considered
4.1 Density Measure: A cylindrical container (Note 1) with
as requirements of the standard.
a volume of 200 6 25 mL (7 6 1 fl. oz.) with a glass or
1.4 This standard does not purport to address all of the
Plexiglasyplatethatisplacedoverit.Theglassorplasticplate
safety concerns, if any, associated with its use. It is the
1 1
shall be at least 6 mm ( ⁄4 in.) thick and 40 mm (1 ⁄2-in.) larger
responsibility of the user of this standard to establish appro-
than the outer diameter of the measure. The top of the density
priate safety and health practices and to determine the
measure shall be flat such that it does not leak when the plate
applicability of regulatory limitations prior to use.
is placed over it.
2. Referenced Documents
NOTE 1—Acommonlyavailablesmallersizemasonjarwithtopground
2.1 ASTM Standards:
smooth is acceptable.
C 29/ C 29M Test Method for Bulk Density (Unit Weight)
4.2 The volume of the density measure shall be determined
and Voids in Aggregate
to nearest 0.1 mL in accordance with procedures used for
C 670 Practice for Preparing Precision and Bias Statements
calibrating air or density measures, as in Test Method C 29/
for Test Methods for Construction Materials
C 29M.
C 1602/C 1602M Standard Specification for Mixing Water
4.3 A microwave oven with at least 900 W of power
used in the Production of Hydraulic Cement Concrete
capacity.
4.4 Amicrowave-safe glass dish large enough to contain the
3. Significance and Use
water sample and fiberglass cloth (See Note 2).
3.1 This method is used to determine the solids content of
NOTE 2—A 450 3 450 3 25 mm (9 3 9 3 1 in.) Pyrexy dish is
mixing water used to produce concrete when one or more of
acceptable. Fiberglass cloth commonly used with fiberglass resin for boat
the water sources is wash water from concrete production
or auto body repair is found in most hardware stores.
operations or water that contains solids when batched as
4.5 A balance or scale with a minimum capacity of 2000 g
mixing water in concrete.
accurate to 0.1 g
4.6 A rubber syringe
This test method is under the jurisdiction of ASTM Committee C09 on
5. Measurement of Density
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
5.1 Obtain the mass of the empty density measure and plate
C09.40 on Ready-Mixed Concrete.
Current edition approved Aug. 1, 2004. Published September 2004.
to the nearest 0.1g.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.2 Ifthewatercontainssolidsinsuspension,ensurethatthe
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
water is sampled while the water source is being agitated.Take
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. a representative sample of water and fill the density measure to
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C1603–04
overflowing. Slide the cover plate over the measure ensuring Where: A and B are regression constants
that there are no air bubbles. Wipe the outside of the plate and
NOTE 4—During concrete production, a producer might choose to
measure dry and obtain the mass of the filled density measure
monitor the density of a water source using a hydrometer. It is recom-
covered with the plate.
mended that the density of the water using a hydrometer be determined on
5.3 Calculate the density of the water sample to 0.001 g/mL
the water at the time of this density measurement to obtain a relationship,
if needed, or to calibrate the hydrometer. The water sample should be
placed in a transparent volumetric measuring flask. The hydrometer
M
W
measurement should be taken within 10 s after filling the water in the
D 5 (1)
W
V
flask.Thisistoensurethatsignificantsettlementofsolidshasnotoccurred
before the measurement is taken as that will affect the measured density.
Where:
7.2 When the relationship between density and solids con-
D = Density of the water, g/mL,
W
M = Net mass of water in the density measure, g, and tent is not determined by testing, calculate the solids content of
W
V = Volume of the density measure, mL.
the water in ppm from the measured density using the
following:
6. Measurement of Solids Content
D 2 1 D
W S
6.1 Obtain the mass of the empty dish and a piece of fiber S 5 3 3 1 000 000 (5)
S D
ppm
D 2 1 D
S W
glass cloth about 500 mm (20 in.) square to the nearest 0.1 g.
6.2 Keep the glass plate over the density measure and shake where:
thewatersuspension.Pourthewatersampleintotheglassdish. D = Density of solids in the water, g/mL
S
Using the rubber syringe, wash solids adhered in the measure
7.2.1 When the density of solids in the water is unknown,
into the dish using a minimum amount of water. Cover the assume it to be 2.6 g/mL, and determine the solids content of
water with the fiberglass cloth to prevent loss of solids during
the water in ppm from the measured density using the
drying. simplified form of Eq 5 as follows:
6.3 Place the dish in a microwave oven and heat it for
S 5 ~D 2 1! 3 1 625 000 (6)
ppm W
approximately 20 min or unt
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